Asp.net中GridView使用介绍

梦里梦外; 2024-04-18 12:38 42阅读 0赞

原文：https://blog.csdn.net/zdhlwt2008/article/details/51395684

**1.GridView简单代码分页排序**：

1.AllowSorting设为True，aspx代码中是AllowSorting="True"；

2.默认1页10条，如果要修改每页条数，修改PageSize即可，在aspx代码中是PageSize="12"。

3.默认的是单向排序的，右击GridView弹出“属性”，选择AllowSorting为True即可。

4.添加代码:

protected void GridView1\_PageIndexChanging(object sender, GridViewPageEventArgs e)  
    \{  
        GridView1.PageIndex = e.NewPageIndex;  
        Bind();  
    \}

**2.GridView选中，编辑，取消，删除：**

后台代码：

using System;  
using System.Data;  
using System.Configuration;  
using System.Web;  
using System.Web.Security;  
using System.Web.UI;  
using System.Web.UI.WebControls;  
using System.Web.UI.WebControls.WebParts;  
using System.Web.UI.HtmlControls;  
using System.Data.SqlClient;  
public partial class \_Default : System.Web.UI.Page  
\{  
    SqlConnection sqlcon;  
    SqlCommand sqlcom;  
    string strCon = "Data Source=(local);Database=数据库名;Uid=帐号;Pwd=密码";  
    protected void Page\_Load(object sender, EventArgs e)  
    \{  
        if (!IsPostBack)  
        \{  
            bind();  
        \}  
    \}  
    protected void GridView1\_RowEditing(object sender, GridViewEditEventArgs e)  
    \{  
        GridView1.EditIndex = e.NewEditIndex;  
        bind();  
    \}  
//删除  
    protected void GridView1\_RowDeleting(object sender, GridViewDeleteEventArgs e)  
    \{  
        string sqlstr = "delete from 表 where id='" + GridView1.DataKeys\[e.RowIndex\].Value.ToString() + "'";  
        sqlcon = new SqlConnection(strCon);  
        sqlcom = new SqlCommand(sqlstr,sqlcon);  
        sqlcon.Open();  
        sqlcom.ExecuteNonQuery();  
        sqlcon.Close();  
        bind();  
    \}  
//更新  
    protected void GridView1\_RowUpdating(object sender, GridViewUpdateEventArgs e)  
    \{  
        sqlcon = new SqlConnection(strCon);  
        string sqlstr = "update 表 set 字段1='"  
            + ((TextBox)(GridView1.Rows\[e.RowIndex\].Cells\[1\].Controls\[0\])).Text.ToString().Trim() + "',字段2='"  
            + ((TextBox)(GridView1.Rows\[e.RowIndex\].Cells\[2\].Controls\[0\])).Text.ToString().Trim() + "',字段3='"  
            + ((TextBox)(GridView1.Rows\[e.RowIndex\].Cells\[3\].Controls\[0\])).Text.ToString().Trim() + "' where id='"  
            + GridView1.DataKeys\[e.RowIndex\].Value.ToString() + "'";  
        sqlcom=new SqlCommand(sqlstr,sqlcon);  
        sqlcon.Open();  
        sqlcom.ExecuteNonQuery();  
        sqlcon.Close();  
        GridView1.EditIndex = -1;  
        bind();  
    \}  
//取消  
    protected void GridView1\_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)  
    \{  
        GridView1.EditIndex = -1;  
        bind();  
    \}  
//绑定  
    public void bind()  
    \{  
        string sqlstr = "select \* from 表";  
        sqlcon = new SqlConnection(strCon);  
        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);  
        DataSet myds = new DataSet();  
        sqlcon.Open();  
        myda.Fill(myds, "表");  
        GridView1.DataSource = myds;  
        GridView1.DataKeyNames = new string\[\] \{ "id" \};//主键  
        GridView1.DataBind();  
        sqlcon.Close();  
    \}  
\}

前台主要代码：

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4"  
                        ForeColor="\#333333" GridLines="None" OnRowDeleting="GridView1\_RowDeleting" OnRowEditing="GridView1\_RowEditing"  
                        OnRowUpdating="GridView1\_RowUpdating" OnRowCancelingEdit="GridView1\_RowCancelingEdit">  
                        <FooterStyle BackColor="\#990000" Font-Bold="True" ForeColor="White" />  
                        <Columns>  
                            <asp:BoundField DataField="身份证号码" HeaderText="用户ID" ReadOnly="True" />  
                            <asp:BoundField DataField="姓名" HeaderText="用户姓名" />  
                            <asp:BoundField DataField="员工性别" HeaderText="性别" />  
                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />  
                            <asp:CommandField HeaderText="选择" ShowSelectButton="True" />  
                            <asp:CommandField HeaderText="编辑" ShowEditButton="True" />  
                            <asp:CommandField HeaderText="删除" ShowDeleteButton="True" />  
                        </Columns>  
                        <RowStyle ForeColor="\#000066" />  
                        <SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
                        <PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left" />  
                        <HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" />  
                    </asp:GridView>

**3.GridView正反双向排序：**

后台代码：

using System;  
using System.Data;  
using System.Configuration;  
using System.Collections;  
using System.Web;  
using System.Web.Security;  
using System.Web.UI;  
using System.Web.UI.WebControls;  
using System.Web.UI.WebControls.WebParts;  
using System.Web.UI.HtmlControls;  
using System.Data.SqlClient;  
public partial class Default3 : System.Web.UI.Page  
\{    SqlConnection sqlcon;  
    string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=";  
    protected void Page\_Load(object sender, EventArgs e)  
    \{  
        if (!IsPostBack)  
        \{  
            ViewState\["SortOrder"\] = "身份证号码";  
            ViewState\["OrderDire"\] = "ASC";  
            bind();  
        \}  
    \}  
    protected void GridView1\_Sorting(object sender, GridViewSortEventArgs e)  
    \{  
        string sPage = e.SortExpression;  
        if (ViewState\["SortOrder"\].ToString() == sPage)  
        \{  
            if (ViewState\["OrderDire"\].ToString() == "Desc")  
                ViewState\["OrderDire"\] = "ASC";  
            else  
                ViewState\["OrderDire"\] = "Desc";  
        \}  
        else  
        \{  
            ViewState\["SortOrder"\] = e.SortExpression;  
        \}  
        bind();  
    \}  
    public void bind()  
    \{  
         
        string sqlstr = "select top 5 \* from 飞狐工作室";  
        sqlcon = new SqlConnection(strCon);  
        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);  
        DataSet myds = new DataSet();  
        sqlcon.Open();  
        myda.Fill(myds, "飞狐工作室");  
        DataView view = myds.Tables\["飞狐工作室"\].DefaultView;  
        string sort = (string)ViewState\["SortOrder"\] + " " + (string)ViewState\["OrderDire"\];  
        view.Sort = sort;  
        GridView1.DataSource = view;  
        GridView1.DataBind();  
        sqlcon.Close();  
    \}  
\}

前台主要代码：

<asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"  
                        CellPadding="3" Font-Size="9pt" OnSorting="GridView1\_Sorting" BackColor="White" BorderColor="\#CCCCCC" BorderStyle="None" BorderWidth="1px">  
                        <FooterStyle BackColor="White" ForeColor="\#000066" />  
                        <Columns>  
                             <asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />  
                            <asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/>  
                            <asp:BoundField DataField="员工性别" HeaderText="性别" SortExpression="员工性别"/>  
                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/>                                 
                        </Columns>  
                        <RowStyle ForeColor="\#000066" />  
                        <SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
                        <PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left" />  
                        <HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" />  
                    </asp:GridView>   
**4.GridView和下拉菜单DropDownList结合：**

后台代码：

using System;  
using System.Data;  
using System.Configuration;  
using System.Collections;  
using System.Web;  
using System.Web.Security;  
using System.Web.UI;  
using System.Web.UI.WebControls;  
using System.Web.UI.WebControls.WebParts;  
using System.Web.UI.HtmlControls;  
using System.Data.SqlClient;  
public partial class Default4 : System.Web.UI.Page  
\{  
    SqlConnection sqlcon;  
    string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";  
    protected void Page\_Load(object sender, EventArgs e)  
    \{  
        DropDownList ddl;  
        if (!IsPostBack)  
        \{  
            string sqlstr = "select top 5 \* from 飞狐工作室";  
            sqlcon = new SqlConnection(strCon);  
            SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);  
            DataSet myds = new DataSet();  
            sqlcon.Open();  
            myda.Fill(myds, "飞狐工作室");  
            GridView1.DataSource = myds;  
            GridView1.DataBind();  
            for (int i = 0; i <= GridView1.Rows.Count - 1; i++)  
            \{  
                DataRowView mydrv = myds.Tables\["飞狐工作室"\].DefaultView\[i\];  
                if (Convert.ToString(mydrv\["员工性别"\]).Trim() == "True")  
                \{  
                    ddl = (DropDownList)GridView1.Rows\[i\].FindControl("DropDownList1");  
                    ddl.SelectedIndex = 0;  
                \}  
                if (Convert.ToString(mydrv\["员工性别"\]).Trim() == "False")  
                \{  
                    ddl = (DropDownList)GridView1.Rows\[i\].FindControl("DropDownList1");  
                    ddl.SelectedIndex = 1;  
                \}  
            \}  
            sqlcon.Close();  
        \}  
    \}  
    public SqlDataReader ddlbind()  
    \{  
        string sqlstr = "select distinct 员工性别 from 飞狐工作室";  
        sqlcon = new SqlConnection(strCon);  
        SqlCommand sqlcom = new SqlCommand(sqlstr, sqlcon);  
        sqlcon.Open();  
        return sqlcom.ExecuteReader();  
    \}

前台主要代码：

<asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"  
                        CellPadding="3" Font-Size="9pt"  BackColor="White" BorderColor="\#CCCCCC" BorderStyle="None" BorderWidth="1px">  
                        <FooterStyle BackColor="White" ForeColor="\#000066" />  
                        <Columns>  
                             <asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />  
                            <asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/>  
                            <asp:TemplateField HeaderText="员工性别">  
                                <ItemTemplate>  
                                    <asp:DropDownList ID="DropDownList1" runat="server" DataSource='<%\# ddlbind()%>' DataValueField="员工性别" DataTextField="员工性别">  
                                    </asp:DropDownList>  
                                </ItemTemplate>  
                            </asp:TemplateField>  
                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/>  
                                 
                        </Columns>  
                        <RowStyle ForeColor="\#000066" />  
                        <SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
                        <PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left" />  
                        <HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" />  
                    </asp:GridView>

**5.GridView和CheckBox结合：**

后台代码：

using System;  
using System.Data;  
using System.Configuration;  
using System.Web;  
using System.Web.Security;  
using System.Web.UI;  
using System.Web.UI.WebControls;  
using System.Web.UI.WebControls.WebParts;  
using System.Web.UI.HtmlControls;  
using System.Data.SqlClient;  
public partial class Default5 : System.Web.UI.Page  
\{  
    SqlConnection sqlcon;  
    string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";  
    protected void Page\_Load(object sender, EventArgs e)  
    \{  
        if (!IsPostBack)  
        \{  
            bind();  
        \}  
    \}  
    protected void CheckBox2\_CheckedChanged(object sender, EventArgs e)  
    \{  
        for (int i = 0; i <= GridView1.Rows.Count - 1; i++)  
        \{  
            CheckBox cbox = (CheckBox)GridView1.Rows\[i\].FindControl("CheckBox1");  
            if (CheckBox2.Checked == true)  
            \{  
                cbox.Checked = true;  
            \}  
            else  
            \{  
                cbox.Checked = false;  
            \}  
        \}  
    \}  
    protected void Button2\_Click(object sender, EventArgs e)  
    \{  
        sqlcon = new SqlConnection(strCon);  
        SqlCommand sqlcom;  
        for (int i = 0; i <= GridView1.Rows.Count - 1; i++)  
        \{  
            CheckBox cbox = (CheckBox)GridView1.Rows\[i\].FindControl("CheckBox1");  
            if (cbox.Checked == true)  
            \{  
                string sqlstr = "delete from 飞狐工作室 where 身份证号码='" + GridView1.DataKeys\[i\].Value + "'";  
                sqlcom = new SqlCommand(sqlstr, sqlcon);  
                sqlcon.Open();  
                sqlcom.ExecuteNonQuery();  
                sqlcon.Close();  
            \}  
        \}  
        bind();  
    \}  
    protected void Button1\_Click(object sender, EventArgs e)  
    \{  
        CheckBox2.Checked = false;  
        for (int i = 0; i <= GridView1.Rows.Count - 1; i++)  
        \{  
            CheckBox cbox = (CheckBox)GridView1.Rows\[i\].FindControl("CheckBox1");  
            cbox.Checked = false;  
        \}  
    \}  
    public void bind()  
    \{  
        string sqlstr = "select top 5 \* from 飞狐工作室";  
        sqlcon = new SqlConnection(strCon);  
        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);  
        DataSet myds = new DataSet();  
        sqlcon.Open();  
        myda.Fill(myds, "tb\_Member");  
        GridView1.DataSource = myds;  
        GridView1.DataKeyNames = new string\[\] \{ "身份证号码" \};  
        GridView1.DataBind();  
        sqlcon.Close();  
    \}  
\}  
前台主要代码：

<asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"  
                        CellPadding="3" Font-Size="9pt"  BackColor="White" BorderColor="\#CCCCCC" BorderStyle="None" BorderWidth="1px">  
                        <FooterStyle BackColor="White" ForeColor="\#000066" />  
                        <Columns>  
                             <asp:TemplateField>  
                                <ItemTemplate>  
                                    <asp:CheckBox ID="CheckBox1" runat="server" />  
                                </ItemTemplate>  
                            </asp:TemplateField>  
                             <asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />  
                            <asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/>  
                             
                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/>  
                                 
                        </Columns>  
                        <RowStyle ForeColor="\#000066" />  
                        <SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
                        <PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left" />  
                        <HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" />  
                    </asp:GridView>  
                     <asp:CheckBox ID="CheckBox2" runat="server" AutoPostBack="True" Font-Size="9pt" OnCheckedChanged="CheckBox2\_CheckedChanged"  
                        Text="全选" />  
                    <asp:Button ID="Button1" runat="server" Font-Size="9pt" Text="取消" OnClick="Button1\_Click" />  
                    <asp:Button ID="Button2" runat="server" Font-Size="9pt" Text="删除" OnClick="Button2\_Click" />  
**6.鼠标移到GridView某一行时改变该行的背景色**

方法一：

做法：

双击GridView的OnRowDataBound事件；

在后台的GridView1\_RowDataBound()方法添加代码，最后代码如下所示：

protected void GridView1\_RowDataBound(object sender, GridViewRowEventArgs e)  
    \{  
　　　　//首先判断是否是数据行  
            if (e.Row.RowType == DataControlRowType.DataRow)  
            \{  
                //当鼠标停留时更改背景色  
                e.Row.Attributes.Add("onmouseover", "c=this.style.backgroundColor;this.style.backgroundColor='\#00A9FF'");  
                //当鼠标移开时还原背景色  
                e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=c");  
            \}  
    \}

前台代码：

<html xmlns="http://www.w3.org/1999/xhtml" >  
<head runat="server">  
    <title>实现鼠标划过改变GridView的行背景色清清月儿http://blog.csdn.net/21aspnet </title>  
</head>  
<body>  
    <form id="form1" runat="server">  
    <div>  
        <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="身份证号码"  
            DataSourceID="SqlDataSource1" AllowSorting="True" BackColor="White" BorderColor="\#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="3" Font-Size="12px" OnRowDataBound="GridView1\_RowDataBound">  
            <Columns>  
                <asp:BoundField DataField="身份证号码" HeaderText="身份证号码" ReadOnly="True" SortExpression="身份证号码" />  
                <asp:BoundField DataField="姓名" HeaderText="姓名" SortExpression="姓名" />  
                <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址" />  
                <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />  
            </Columns>  
            <FooterStyle BackColor="White" ForeColor="\#000066" />  
            <RowStyle ForeColor="\#000066" />  
            <SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
            <PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left" />  
            <HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" />  
        </asp:GridView>  
        <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:北风贸易ConnectionString1 %>"  
            SelectCommand="SELECT top 5 \[身份证号码\], \[姓名\], \[员工性别\], \[家庭住址\], \[邮政编码\] FROM \[飞狐工作室\]" DataSourceMode="DataReader"></asp:SqlDataSource>  
     
    </div>  
    </form>  
</body>  
</html>

方法二：

做法：和上面的一样就是代码不同

protected void GridView1\_RowDataBound(object sender, GridViewRowEventArgs e)  
    \{  
        //如果是绑定数据行  
        if (e.Row.RowType == DataControlRowType.DataRow)  
        \{  
            //鼠标经过时，行背景色变  
            e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='\#E6F5FA'");  
            //鼠标移出时，行背景色变  
            e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='\#FFFFFF'");  
        \}  
    \}  
**8.GridView实现删除时弹出确认对话框：**

实现方法：

双击GridView的OnRowDataBound事件；

在后台的GridView1\_RowDataBound()方法添加代码，最后代码如下所示：

protected void GridView1\_RowDataBound(object sender, GridViewRowEventArgs e)  
    \{  
        //如果是绑定数据行  
        if (e.Row.RowType == DataControlRowType.DataRow)  
        \{  
             if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)  
            \{  
                ((LinkButton)e.Row.Cells\[6\].Controls\[0\]).Attributes.Add("onclick", "javascript:return confirm('你确认要删除：/"" + e.Row.Cells\[1\].Text + "/"吗?')");  
            \}  
        \}  
    \}

**9.GridView实现自动编号：**

实现方法：

双击GridView的OnRowDataBound事件；

在后台的GridView1\_RowDataBound()方法添加代码，最后代码如下所示：

protected void GridView1\_RowDataBound(object sender, GridViewRowEventArgs e)  
    \{  
        if (e.Row.RowIndex != -1)  
        \{  
            int id = e.Row.RowIndex + 1;  
            e.Row.Cells\[0\].Text = id.ToString();  
        \}  
    \}

注意这时最好把前台的第一列的表头该为“编号”，因为以前的第一列被“吃掉”了。

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1\_RowDeleting" OnRowEditing="GridView1\_RowEditing"  
                        OnRowUpdating="GridView1\_RowUpdating" OnRowCancelingEdit="GridView1\_RowCancelingEdit" BackColor="White" BorderColor="\#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowDataBound="GridView1\_RowDataBound">  
                        <FooterStyle BackColor="White" ForeColor="\#000066" />  
                        <Columns>  
                            <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />  
                            <asp:BoundField DataField="姓名" HeaderText="用户姓名" />  
                            <asp:BoundField DataField="员工性别" HeaderText="性别" />  
                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />  
                            <asp:CommandField HeaderText="选择" ShowSelectButton="True" />  
                            <asp:CommandField HeaderText="编辑" ShowEditButton="True" />  
                            <asp:CommandField HeaderText="删除" ShowDeleteButton="True" />  
                        </Columns>  
                        <RowStyle ForeColor="\#000066" />  
                        <SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
                        <PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left" />  
                        <HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" />  
                    </asp:GridView>

**10.GridView实现自定义时间货币等字符串格式：**

解决方法：

在asp.net 2.0中，如果要在绑定列中显示比如日期格式等，如果用下面的方法是显示不了的

<asp :BoundField DataField="CreationDate"  
DataFormatString="\{0:M-dd-yyyy\}"  
HeaderText="CreationDate" />  
主要是由于htmlencode属性默认设置为true,已防止XSS攻击，安全起见而用的，所以，可以有以下两种方法解决

1、

<asp :GridView ID="GridView1" runat="server">  
<columns>  
<asp :BoundField DataField="CreationDate"  
DataFormatString="\{0:M-dd-yyyy\}"  
HtmlEncode="false"  
HeaderText="CreationDate" />  
</columns>  
</asp>  
将htmlencode设置为false即可

另外的解决方法为，使用模版列

前台代码：

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="身份证号码"  
            DataSourceID="SqlDataSource1" AllowSorting="True" BackColor="White" BorderColor="\#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="3" Font-Size="12px" OnRowDataBound="GridView1\_RowDataBound">  
            <Columns>  
                <asp:BoundField DataField="身份证号码" HeaderText="身份证号码" ReadOnly="True" SortExpression="身份证号码" />  
                <asp:BoundField DataField="姓名" HeaderText="姓名" SortExpression="姓名" />  
                <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />  
                <asp:BoundField DataField="出生日期" HeaderText="出生日期" SortExpression="出生日期" />  
                <asp:BoundField DataField="起薪" HeaderText="起薪" SortExpression="起薪" />  
            </Columns>  
            <FooterStyle BackColor="White" ForeColor="\#000066" />  
            <RowStyle ForeColor="\#000066" />  
            <SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
            <PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left" />  
            <HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" />  
        </asp:GridView>  
        <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:北风贸易ConnectionString1 %>"  
            SelectCommand="SELECT top 5 \[出生日期\], \[起薪\], \[身份证号码\], \[姓名\], \[家庭住址\], \[邮政编码\] FROM \[飞狐工作室\]" DataSourceMode="DataReader"></asp:SqlDataSource>

附录-常用格式化公式：

\{0:C\}  货币；

\{0:D4\}由0填充的4个字符宽的字段中显示整数；

\{0:000.0\}四舍五入小数点保留第几位有效数字；

\{0:N2\}小数点保留2位有效数字；\{0:N2\}%   小数点保留2位有效数字加百分号；

\{0:D\}长日期；\{0:d\}短日期；\{0:yy-MM-dd\}   例如07-3-25；；\{0:yyyy-MM-dd\}  例如2007-3-25

**11.GridView实现用“...”代替超长字符串：**

解决方法：数据绑定后过滤每一行即可

for (int i = 0; i <= GridView1.Rows.Count - 1; i++)  
        \{  
            DataRowView mydrv;  
            string gIntro;  
            if (GridView1.PageIndex == 0)  
            \{  
                mydrv = myds.Tables\["飞狐工作室"\].DefaultView\[i\];//表名  
                gIntro = Convert.ToString(mydrv\["家庭住址"\]);//所要处理的字段  
                GridView1.Rows\[i\].Cells\[3\].Text = SubStr(gIntro, 2);  
            \}  
            else  
            \{  
                mydrv = myds.Tables\["飞狐工作室"\].DefaultView\[i + (5 \* GridView1.PageIndex)\];  
                gIntro = Convert.ToString(mydrv\["家庭住址"\]);  
                GridView1.Rows\[i\].Cells\[3\].Text = SubStr(gIntro, 2);  
            \}  
        \}

调用的方法：

public string SubStr(string sString, int nLeng)  
    \{  
        if (sString.Length <= nLeng)  
        \{  
            return sString;  
        \}  
        string sNewStr = sString.Substring(0, nLeng);  
        sNewStr = sNewStr + "...";  
        return sNewStr;  
    \}

**12.GridView一般换行与强制换行：**

首先设置<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" ItemStyle-Width="100" />gridview里有一列绑定的数据很长，显示的时候在一行里面显示，页面拉得很宽。原因是连续英文段为一个整体导致的，在RowDataBound中添加上了一句e.Row.Cells\[2\].Style.Add("word-break", "break-all")就可以。如果要给所有的列增加此属性：

protected void Page\_Load(object sender, EventArgs e)  
    \{  
        //正常换行  
        GridView1.Attributes.Add("style", "word-break:keep-all;word-wrap:normal");  
        //下面这行是自动换行  
        GridView1.Attributes.Add("style", "word-break:break-all;word-wrap:break-word");  
        if (!IsPostBack)  
        \{  
             bind();//调用数据绑定即可  
        \}  
    \}  
总之：善用CSS的word-break:break-all;word-wrap:break-word属性即可，这个属性是通用的对于顽固的南换行问题都可以解决，不局限于GridView。

**13.GridView显示隐藏某一列：**

解决方案：

public void bind()  
    \{  
        string sqlstr = "select top 5 \* from 飞狐工作室";  
        sqlcon = new SqlConnection(strCon);  
        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);  
        DataSet myds = new DataSet();  
        sqlcon.Open();  
        myda.Fill(myds, "飞狐工作室");  
        GridView1.DataSource = myds;  
        GridView1.DataKeyNames = new string\[\] \{ "身份证号码" \};  
        GridView1.DataBind();  
        sqlcon.Close();  
        GridView1.Columns\[3\].Visible = false;//一开始隐藏  
        CheckBox1.Checked = false;//如果不这样后面的代码会把他True  
    \}

双击CheckBox1，在CheckedChanged方法里写上代码，最后代码如下：

protected void CheckBox1\_CheckedChanged(object sender, EventArgs e)  
    \{  
         GridView1.Columns\[3\].Visible=! GridView1.Columns\[3\].Visible;  
         Response.Write("GridView1的第4列现在的显示隐藏状态是："+GridView1.Columns\[3\].Visible.ToString());  
    \}  
注意：CheckBox1的AutoPostBack要True！

后台全部代码如下：

using System;  
using System.Data;  
using System.Configuration;  
using System.Web;  
using System.Web.Security;  
using System.Web.UI;  
using System.Web.UI.WebControls;  
using System.Web.UI.WebControls.WebParts;  
using System.Web.UI.HtmlControls;  
using System.Data.SqlClient;  
   
public partial class \_Default : System.Web.UI.Page   
\{  
    SqlConnection sqlcon;  
    SqlCommand sqlcom;   
    string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";  
    protected void Page\_Load(object sender, EventArgs e)  
    \{  
        if (!IsPostBack)  
        \{  
            ViewState\["SortOrder"\] = "身份证号码";  
            ViewState\["OrderDire"\] = "ASC";  
            bind();  
                   \}  
    \}  
    protected void GridView1\_RowEditing(object sender, GridViewEditEventArgs e)  
    \{  
        GridView1.EditIndex = e.NewEditIndex;  
        bind();  
    \}  
    protected void GridView1\_RowDeleting(object sender, GridViewDeleteEventArgs e)  
    \{  
        string sqlstr = "delete from 飞狐工作室 where 身份证号码='" + GridView1.DataKeys\[e.RowIndex\].Value.ToString() + "'";  
        sqlcon = new SqlConnection(strCon);  
        sqlcom = new SqlCommand(sqlstr,sqlcon);  
        sqlcon.Open();  
        sqlcom.ExecuteNonQuery();  
        sqlcon.Close();  
        bind();  
    \}  
    protected void GridView1\_RowUpdating(object sender, GridViewUpdateEventArgs e)  
    \{  
        sqlcon = new SqlConnection(strCon);  
        string sqlstr = "update 飞狐工作室 set 姓名='"  
            + ((TextBox)(GridView1.Rows\[e.RowIndex\].Cells\[1\].Controls\[0\])).Text.ToString().Trim() + "',家庭住址='"  
            + ((TextBox)(GridView1.Rows\[e.RowIndex\].Cells\[3\].Controls\[0\])).Text.ToString().Trim() + "' where 身份证号码='"   
            + GridView1.DataKeys\[e.RowIndex\].Value.ToString() + "'";  
        sqlcom=new SqlCommand(sqlstr,sqlcon);  
        sqlcon.Open();  
        sqlcom.ExecuteNonQuery();  
        sqlcon.Close();  
        GridView1.EditIndex = -1;  
        bind();  
    \}  
    protected void GridView1\_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)  
    \{  
        GridView1.EditIndex = -1;  
        bind();  
    \}  
    public void bind()  
    \{  
        string sqlstr = "select top 5 \* from 飞狐工作室";  
        sqlcon = new SqlConnection(strCon);  
        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);  
        DataSet myds = new DataSet();  
        sqlcon.Open();  
        myda.Fill(myds, "飞狐工作室");  
        GridView1.DataSource = myds;  
        GridView1.DataKeyNames = new string\[\] \{ "身份证号码" \};  
        GridView1.DataBind();  
        sqlcon.Close();  
        GridView1.Columns\[3\].Visible = false;  
        CheckBox1.Checked = false;  
    \}  
    protected void CheckBox1\_CheckedChanged(object sender, EventArgs e)  
    \{  
         GridView1.Columns\[3\].Visible=! GridView1.Columns\[3\].Visible;  
         Response.Write("GridView1的第4列现在的显示隐藏状态是："+GridView1.Columns\[3\].Visible.ToString());  
    \}  
\}  
前台代码：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">  
   
<html xmlns="http://www.w3.org/1999/xhtml" >  
<head runat="server">  
    <title>GridView显示隐藏列 清清月儿http://blog.csdn.net/21aspnet </title>  
</head>  
<body style="font-size=12px">  
    <form id="form1" runat="server">  
    <div>  
                   <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1\_RowDeleting" OnRowEditing="GridView1\_RowEditing"  
                        OnRowUpdating="GridView1\_RowUpdating" OnRowCancelingEdit="GridView1\_RowCancelingEdit" BackColor="White" BorderColor="\#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px"  >  
                        <FooterStyle BackColor="White" ForeColor="\#000066" />  
                        <Columns>  
                            <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />  
                            <asp:BoundField DataField="姓名" HeaderText="用户姓名" />  
                            <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />  
                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />  
                            <asp:CommandField HeaderText="选择" ShowSelectButton="True" />  
                            <asp:CommandField HeaderText="编辑" ShowEditButton="True" />  
                            <asp:CommandField HeaderText="删除" ShowDeleteButton="True" />  
                        </Columns>  
                        <RowStyle ForeColor="\#000066" />  
                        <SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
                        <PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left" />  
                        <HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" />  
                    </asp:GridView>  
        <asp:CheckBox ID="CheckBox1" runat="server" AutoPostBack="True" Font-Size="12px"  
            OnCheckedChanged="CheckBox1\_CheckedChanged" Text="显示隐藏家庭住址" /></div>  
    </form>  
</body>  
</html>

**14.GridView弹出新页面：**

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1\_RowDeleting" OnRowEditing="GridView1\_RowEditing"  
                        OnRowUpdating="GridView1\_RowUpdating" OnRowCancelingEdit="GridView1\_RowCancelingEdit" BackColor="White" BorderColor="\#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px"  >  
                        <FooterStyle BackColor="White" ForeColor="\#000066" />  
                        <Columns>  
                            <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />  
                            <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />  
                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />  
                            <asp:HyperLinkField HeaderText="姓名" Text="姓名" DataNavigateUrlFields="姓名" DataNavigateUrlFormatString="Default6.aspx?GoodsID=\{0\}" Target="mainframe" NavigateUrl="~/Default6.aspx" DataTextField="姓名" >  
                    </asp:HyperLinkField>  
                            <asp:CommandField HeaderText="选择" ShowSelectButton="True" />  
                            <asp:CommandField HeaderText="编辑" ShowEditButton="True" />  
                            <asp:CommandField HeaderText="删除" ShowDeleteButton="True" />  
                        </Columns>  
                        <RowStyle ForeColor="\#000066" />  
                        <SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
                        <PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left" />  
                        <HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" />  
                    </asp:GridView>

DataNavigateUrlFields是链接的字段名，DataNavigateUrlFormatString是路径。

**15.GridView固定表头(不用javascript只用CSS!，很好用)：**

代码：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">  
<html xmlns="http://www.w3.org/1999/xhtml" >  
<head runat="server">  
    <title>GridView固定表头 清清月儿http://blog.csdn.net/21aspnet </title>  
        <style>  
.Freezing  
   \{  
     
   position:relative ;  
   table-layout:fixed;  
   top:expression(this.offsetParent.scrollTop);    
   z-index: 10;  
   \}  
.Freezing th\{text-overflow:ellipsis;overflow:hidden;white-space: nowrap;padding:2px;\}  
</style>  
</head>  
<body style="font-size=12px">  
    <form id="form1" runat="server">  
    <div style="overflow-y: scroll; height: 200px;width:300px" id="dvBody">  
                   <asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1\_RowDeleting" OnRowEditing="GridView1\_RowEditing"  
                        OnRowUpdating="GridView1\_RowUpdating" OnRowCancelingEdit="GridView1\_RowCancelingEdit" BackColor="White" BorderColor="\#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowCreated="GridView1\_RowCreated"  >  
                        <FooterStyle BackColor="White" ForeColor="\#000066" />  
                        <Columns>  
                            <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />  
                            <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />  
                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />  
                            <asp:BoundField DataField="姓名" HeaderText="姓名"  />  
                             
                        </Columns>  
                        <RowStyle ForeColor="\#000066" />  
                        <SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
                        <PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>  
                        <HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" CssClass="Freezing"/>  
                    </asp:GridView>  
        </div>  
    </form>  
</body>  
</html>

用法：CSS设如上的样式，HeaderStyle加CssClass="Freezing，套住GridView的Div设置高度宽度 <div style="overflow-y: scroll; height: 200px;width:200px" >

**16.GridView合并表头多重表头无错完美版（以合并3列3行举例）**

后台代码：

protected void GridView1\_RowCreated(object sender, GridViewRowEventArgs e)  
    \{  
        switch (e.Row.RowType)  
        \{  
            case DataControlRowType.Header:  
                //第一行表头  
                TableCellCollection tcHeader = e.Row.Cells;  
                tcHeader.Clear();  
                tcHeader.Add(new TableHeaderCell());  
                tcHeader\[0\].Attributes.Add("rowspan", "3"); //跨Row  
                tcHeader\[0\].Attributes.Add("bgcolor", "white");  
                tcHeader\[0\].Text = "";  
                tcHeader.Add(new TableHeaderCell());  
                //tcHeader\[1\].Attributes.Add("bgcolor", "Red");  
                tcHeader\[1\].Attributes.Add("colspan", "6"); //跨Column  
                tcHeader\[1\].Text = "全部信息</th></tr><tr>";  
                //第二行表头  
                tcHeader.Add(new TableHeaderCell());  
                tcHeader\[2\].Attributes.Add("bgcolor", "DarkSeaGreen");  
                tcHeader\[2\].Text = "身份证号码";  
                tcHeader.Add(new TableHeaderCell());  
                tcHeader\[3\].Attributes.Add("bgcolor", "LightSteelBlue");  
                tcHeader\[3\].Attributes.Add("colspan", "2");  
                tcHeader\[3\].Text = "基本信息";  
                tcHeader.Add(new TableHeaderCell());  
                tcHeader\[4\].Attributes.Add("bgcolor", "DarkSeaGreen");  
                tcHeader\[4\].Text = "福利";  
                tcHeader.Add(new TableHeaderCell());  
                tcHeader\[5\].Attributes.Add("bgcolor", "LightSteelBlue");  
                tcHeader\[5\].Attributes.Add("colspan", "2");  
                tcHeader\[5\].Text = "联系方式</th></tr><tr>";  
                //第三行表头  
                tcHeader.Add(new TableHeaderCell());  
                tcHeader\[6\].Attributes.Add("bgcolor", "Khaki");  
                tcHeader\[6\].Text = "身份证号码";  
                tcHeader.Add(new TableHeaderCell());  
                tcHeader\[7\].Attributes.Add("bgcolor", "Khaki");  
                tcHeader\[7\].Text = "姓名";  
                tcHeader.Add(new TableHeaderCell());  
                tcHeader\[8\].Attributes.Add("bgcolor", "Khaki");  
                tcHeader\[8\].Text = "出生日期";  
                tcHeader.Add(new TableHeaderCell());  
                tcHeader\[9\].Attributes.Add("bgcolor", "Khaki");  
                tcHeader\[9\].Text = "薪水";  
                tcHeader.Add(new TableHeaderCell());  
                tcHeader\[10\].Attributes.Add("bgcolor", "Khaki");  
                tcHeader\[10\].Text = "家庭住址";  
                tcHeader.Add(new TableHeaderCell());  
                tcHeader\[11\].Attributes.Add("bgcolor", "Khaki");  
                tcHeader\[11\].Text = "邮政编码";  
                break;  
        \}  
    \}  
\}  
前台：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">  
<html xmlns="http://www.w3.org/1999/xhtml" >  
<head runat="server">  
    <title>GridView合并多重表头表头 清清月儿http://blog.csdn.net/21aspnet </title>  
</head>  
<body >  
    <form id="form1" runat="server">  
    <div  >  
                   <asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3"  OnRowEditing="GridView1\_RowEditing"  
                        OnRowUpdating="GridView1\_RowUpdating" OnRowCancelingEdit="GridView1\_RowCancelingEdit" BackColor="White" BorderColor="\#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowCreated="GridView1\_RowCreated"  >  
                        <FooterStyle BackColor="White" ForeColor="\#000066" />  
                        <Columns>  
                            <asp:CommandField HeaderText="编辑" ShowEditButton="True" />  
                            <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />  
                            <asp:BoundField DataField="姓名" HeaderText="姓名"  />  
                            <asp:BoundField DataField="出生日期" HeaderText="邮政编码"  />  
                             <asp:BoundField DataField="起薪" HeaderText="起薪"  />  
                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />  
                            <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />  
                            
                        </Columns>  
                        <RowStyle ForeColor="\#000066" />  
                        <SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
                        <PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>  
                        <HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" />  
                    </asp:GridView>  
        </div>  
    </form>  
</body>  
</html>

**17.GridView突出显示某一单元格（例如金额低于多少，分数不及格等）**

解决方案：主要是绑定后过滤

GridView1.DataBind();  
        for (int i = 0; i <= GridView1.Rows.Count - 1; i++)  
        \{  
            DataRowView mydrv = myds.Tables\["飞狐工作室"\].DefaultView\[i\];  
            string score = Convert.ToString(mydrv\["起薪"\]);  
            if (Convert.ToDouble(score) < 34297.00)//大家这里根据具体情况设置可能ToInt32等等  
            \{  
                GridView1.Rows\[i\].Cells\[4\].BackColor = System.Drawing.Color.Red;  
            \}  
        \}  
        sqlcon.Close();  
全部后台代码：

using System;  
using System.Data;  
using System.Configuration;  
using System.Web;  
using System.Web.Security;  
using System.Web.UI;  
using System.Web.UI.WebControls;  
using System.Web.UI.WebControls.WebParts;  
using System.Web.UI.HtmlControls;  
using System.Data.SqlClient;  
using System.Drawing;  
   
public partial class Default7 : System.Web.UI.Page  
\{  
    SqlConnection sqlcon;  
    SqlCommand sqlcom;  
    string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";  
    protected void Page\_Load(object sender, EventArgs e)  
    \{  
        if (!IsPostBack)  
        \{  
            bind();  
   
        \}  
    \}  
    protected void GridView1\_RowEditing(object sender, GridViewEditEventArgs e)  
    \{  
        GridView1.EditIndex = e.NewEditIndex;  
        bind();  
    \}  
    protected void GridView1\_RowUpdating(object sender, GridViewUpdateEventArgs e)  
    \{  
        sqlcon = new SqlConnection(strCon);  
        string sqlstr = "update 飞狐工作室 set 姓名='"  
            + ((TextBox)(GridView1.Rows\[e.RowIndex\].Cells\[1\].Controls\[0\])).Text.ToString().Trim() + "',家庭住址='"  
            + ((TextBox)(GridView1.Rows\[e.RowIndex\].Cells\[3\].Controls\[0\])).Text.ToString().Trim() + "' where 身份证号码='"  
            + GridView1.DataKeys\[e.RowIndex\].Value.ToString() + "'";  
        sqlcom = new SqlCommand(sqlstr, sqlcon);  
        sqlcon.Open();  
        sqlcom.ExecuteNonQuery();  
        sqlcon.Close();  
        GridView1.EditIndex = -1;  
        bind();  
    \}  
    protected void GridView1\_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)  
    \{  
        GridView1.EditIndex = -1;  
        bind();  
    \}  
    public void bind()  
    \{  
        string sqlstr = "select top 10 \* from 飞狐工作室";  
        sqlcon = new SqlConnection(strCon);  
        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);  
        DataSet myds = new DataSet();  
        sqlcon.Open();  
        myda.Fill(myds, "飞狐工作室");  
        GridView1.DataSource = myds;  
        GridView1.DataKeyNames = new string\[\] \{ "身份证号码" \};  
        GridView1.DataBind();  
        for (int i = 0; i <= GridView1.Rows.Count - 1; i++)  
        \{  
            DataRowView mydrv = myds.Tables\["飞狐工作室"\].DefaultView\[i\];  
            string score = Convert.ToString(mydrv\["起薪"\]);  
            if (Convert.ToDouble(score) < 34297.00)//大家这里根据具体情况设置可能ToInt32等等  
   
            \{  
                GridView1.Rows\[i\].Cells\[4\].BackColor = System.Drawing.Color.Red;  
            \}  
        \}  
        sqlcon.Close();  
    \}  
\}

前台代码：  
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">  
<html xmlns="http://www.w3.org/1999/xhtml" >  
<head id="Head1" runat="server">  
    <title>GridView突出显示某一单元格 清清月儿http://blog.csdn.net/21aspnet </title>  
</head>  
<body >  
    <form id="form1" runat="server">  
    <div  >  
                   <asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3" OnRowEditing="GridView1\_RowEditing"  
                        OnRowUpdating="GridView1\_RowUpdating" OnRowCancelingEdit="GridView1\_RowCancelingEdit" BackColor="White" BorderColor="\#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px"  >  
                        <FooterStyle BackColor="White" ForeColor="\#000066" />  
                        <Columns>  
                            <asp:CommandField HeaderText="编辑" ShowEditButton="True" />  
                            <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />  
                            <asp:BoundField DataField="姓名" HeaderText="姓名"  />  
                            <asp:BoundField DataField="出生日期" HeaderText="邮政编码"  />  
                             <asp:BoundField DataField="起薪" HeaderText="起薪"  DataFormatString="\{0:C\}" HtmlEncode="false"/>  
                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />  
                            <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />  
                            
                        </Columns>  
                        <RowStyle ForeColor="\#000066" />  
                        <SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
                        <PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>  
                        <HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" />  
                    </asp:GridView>  
        </div>  
    </form>  
</body>  
</html>

**18.GridView加入自动求和求平均值小计**

解决方案

private double sum = 0;//取指定列的数据和，你要根据具体情况对待可能你要处理的是int  
protected void GridView1\_RowDataBound(object sender, GridViewRowEventArgs e)  
    \{  
         
        if (e.Row.RowIndex >= 0)  
        \{  
            sum += Convert.ToDouble(e.Row.Cells\[6\].Text);  
        \}  
        else if (e.Row.RowType == DataControlRowType.Footer)  
        \{  
            e.Row.Cells\[5\].Text = "总薪水为：";  
            e.Row.Cells\[6\].Text = sum.ToString();  
            e.Row.Cells\[3\].Text = "平均薪水为：";  
            e.Row.Cells\[4\].Text = ((int)(sum / GridView1.Rows.Count)).ToString();  
             
        \}  
    \}

后台全部代码：  
using System;  
using System.Data;  
using System.Configuration;  
using System.Web;  
using System.Web.Security;  
using System.Web.UI;  
using System.Web.UI.WebControls;  
using System.Web.UI.WebControls.WebParts;  
using System.Web.UI.HtmlControls;  
using System.Data.SqlClient;  
using System.Drawing;  
   
public partial class Default7 : System.Web.UI.Page  
\{  
    SqlConnection sqlcon;  
    SqlCommand sqlcom;  
    string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";  
    protected void Page\_Load(object sender, EventArgs e)  
    \{  
        if (!IsPostBack)  
        \{  
            bind();  
   
        \}  
    \}  
    protected void GridView1\_RowEditing(object sender, GridViewEditEventArgs e)  
    \{  
        GridView1.EditIndex = e.NewEditIndex;  
        bind();  
    \}  
    protected void GridView1\_RowUpdating(object sender, GridViewUpdateEventArgs e)  
    \{  
        sqlcon = new SqlConnection(strCon);  
        string sqlstr = "update 飞狐工作室 set 姓名='"  
            + ((TextBox)(GridView1.Rows\[e.RowIndex\].Cells\[1\].Controls\[0\])).Text.ToString().Trim() + "',家庭住址='"  
            + ((TextBox)(GridView1.Rows\[e.RowIndex\].Cells\[3\].Controls\[0\])).Text.ToString().Trim() + "' where 身份证号码='"  
            + GridView1.DataKeys\[e.RowIndex\].Value.ToString() + "'";  
        sqlcom = new SqlCommand(sqlstr, sqlcon);  
        sqlcon.Open();  
        sqlcom.ExecuteNonQuery();  
        sqlcon.Close();  
        GridView1.EditIndex = -1;  
        bind();  
    \}  
    protected void GridView1\_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)  
    \{  
        GridView1.EditIndex = -1;  
        bind();  
    \}  
    public void bind()  
    \{  
        string sqlstr = "select top 5 \* from 飞狐工作室";  
        sqlcon = new SqlConnection(strCon);  
        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);  
        DataSet myds = new DataSet();  
        sqlcon.Open();  
        myda.Fill(myds, "飞狐工作室");  
        GridView1.DataSource = myds;  
        GridView1.DataKeyNames = new string\[\] \{ "身份证号码" \};  
        GridView1.DataBind();  
        sqlcon.Close();  
    \}  
    private double sum = 0;//取指定列的数据和  
    protected void GridView1\_RowDataBound(object sender, GridViewRowEventArgs e)  
    \{  
          
        if (e.Row.RowIndex >= 0)  
        \{  
            sum += Convert.ToDouble(e.Row.Cells\[6\].Text);  
        \}  
        else if (e.Row.RowType == DataControlRowType.Footer)  
        \{  
            e.Row.Cells\[5\].Text = "总薪水为：";  
            e.Row.Cells\[6\].Text = sum.ToString();  
            e.Row.Cells\[3\].Text = "平均薪水为：";  
            e.Row.Cells\[4\].Text = ((int)(sum / GridView1.Rows.Count)).ToString();  
              
        \}  
    \}  
\}

前台：唯一的花头就是设置ShowFooter="True" ，否则默认表头为隐藏的！

<asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3"  OnRowEditing="GridView1\_RowEditing"  
                        OnRowUpdating="GridView1\_RowUpdating" OnRowCancelingEdit="GridView1\_RowCancelingEdit" BackColor="White" BorderColor="\#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowDataBound="GridView1\_RowDataBound" ShowFooter="True"  >  
                        <FooterStyle BackColor="White" ForeColor="\#000066" />  
                        <Columns>  
                            <asp:CommandField HeaderText="编辑" ShowEditButton="True" />  
                            <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />  
                            <asp:BoundField DataField="姓名" HeaderText="姓名"  />  
                            <asp:BoundField DataField="出生日期" HeaderText="邮政编码"  />  
                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />  
                            <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />  
                            <asp:BoundField DataField="起薪" HeaderText="起薪"  />  
                            
                        </Columns>  
                        <RowStyle ForeColor="\#000066" />  
                        <SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
                        <PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>  
                        <HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" />  
                    </asp:GridView>

** 19.GridView数据导入Excel/Excel数据读入GridView**

解决方案：

页面增加一个按钮，单击事件添加如下方法：

<pre name="code" class="csharp">protected void Button2\_Click(object sender, EventArgs e)  
        \{  
            //Response.Clear();  
            //Response.AddHeader("content-disposition", "attachment;filename=MES.xls");  
            //Response.ContentType = "application/vnd.ms-excel";  
            //Response.ContentEncoding = System.Text.Encoding.Default;  
            //System.IO.StringWriter sw = new System.IO.StringWriter();  
            //System.Web.UI.HtmlTextWriter hw = new HtmlTextWriter(sw);  
            //GridView1.RenderControl(hw);  
            //Response.Write(sw.ToString());  
            //Response.Flush();  
            //Response.End();//这段会出现乱码，一般使用下面的方法转换一下  
   
            Response.Clear();  
            Response.Buffer = true;  
            Response.Charset = "GB2312";  
            Response.AppendHeader("Content-Disposition", "attachment;filename=Message.xls");  
            Response.ContentEncoding = System.Text.Encoding.UTF8;  
            Response.ContentType = "application/ms-excel";//设置输出文件类型为excel文件。   
            System.IO.StringWriter oStringWriter = new System.IO.StringWriter();  
            System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);  
            this.GridView1.RenderControl(oHtmlTextWriter);  
            Response.Output.Write(oStringWriter.ToString());  
            Response.Flush();  
            Response.End();  
        \}  
        public override void VerifyRenderingInServerForm(Control control)  
        \{  
            //此段必须要，否则会报错，数据不能导入到EXCEL。  
        \}

//如果没有下面方法会报错类型“GridView”的控件“GridView1”必须放在具有 runat=server 的窗体标记内  
    public override void VerifyRenderingInServerForm(Control control)  
    \{  
    \}  
还有由于是文件操作所以要引入名称空间IO和Text

后台代码：

using System;  
using System.Data;  
using System.Configuration;  
using System.Web;  
using System.Web.Security;  
using System.Web.UI;  
using System.Web.UI.WebControls;  
using System.Web.UI.WebControls.WebParts;  
using System.Web.UI.HtmlControls;  
using System.Data.SqlClient;  
using System.Drawing;  
using System.IO;  
using System.Text;  
public partial class Default7 : System.Web.UI.Page  
\{  
    SqlConnection sqlcon;  
    SqlCommand sqlcom;  
    string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";  
    protected void Page\_Load(object sender, EventArgs e)  
    \{  
        if (!IsPostBack)  
        \{  
            bind();  
        \}  
    \}  
     
    public void bind()  
    \{  
        string sqlstr = "select top 5 \* from 飞狐工作室";  
        sqlcon = new SqlConnection(strCon);  
        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);  
        DataSet myds = new DataSet();  
        sqlcon.Open();  
        myda.Fill(myds, "飞狐工作室");  
        GridView1.DataSource = myds;  
        GridView1.DataKeyNames = new string\[\] \{ "身份证号码" \};  
        GridView1.DataBind();  
        sqlcon.Close();  
    \}  
    protected void Button1\_Click(object sender, EventArgs e)  
    \{  
        Export("application/ms-excel", "学生成绩报表.xls");  
    \}  
    private void Export(string FileType, string FileName)  
    \{  
        Response.Charset = "GB2312";  
        Response.ContentEncoding = System.Text.Encoding.UTF7;  
        Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());  
        Response.ContentType = FileType;  
        this.EnableViewState = false;  
        StringWriter tw = new StringWriter();  
        HtmlTextWriter hw = new HtmlTextWriter(tw);  
        GridView1.RenderControl(hw);  
        Response.Write(tw.ToString());  
        Response.End();  
    \}  
    public override void VerifyRenderingInServerForm(Control control)  
    \{  
    \}  
     
\}  
前台：  
<asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3"   
                         BackColor="White" BorderColor="\#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px"   >  
                        <FooterStyle BackColor="White" ForeColor="\#000066" />  
                        <Columns>  
                            <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />  
                            <asp:BoundField DataField="姓名" HeaderText="姓名"  />  
                            <asp:BoundField DataField="出生日期" HeaderText="邮政编码"  />  
                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />  
                            <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />  
                            <asp:BoundField DataField="起薪" HeaderText="起薪"  />  
                            
                        </Columns>  
                        <RowStyle ForeColor="\#000066" />  
                        <SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
                        <PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>  
                        <HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" />  
                    </asp:GridView>  
        <asp:Button ID="Button1" runat="server" OnClick="Button1\_Click" Text="导出" />

**20、读取Excel数据的代码**

这个很简单的  
private DataSet CreateDataSource()  
    \{  
        string strCon;  
        strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("excel.xls") + "; Extended Properties=Excel 8.0;";  
        OleDbConnection olecon = new OleDbConnection(strCon);  
        OleDbDataAdapter myda = new OleDbDataAdapter("SELECT \* FROM \[Sheet1$\]", strCon);  
        DataSet myds = new DataSet();  
        myda.Fill(myds);  
        return myds;  
    \}  
    protected void Button1\_Click(object sender, EventArgs e)  
    \{  
        GridView1.DataSource = CreateDataSource();  
        GridView1.DataBind();  
    \}