步步为营 SharePoint 开发学习笔记系列五、Web Part开发

红太狼 2021-12-23 00:55 237阅读 0赞

**概要**

现在有两种不同的Web部件。老的WSS风格的WebPart依赖于Microsoft.SharePoint.dll，必须继承自WSS 2.0所定义的WebPart基类，其命名空间为Microsoft.SharePoint.WebPartPages。新的ASP风格WebPart依赖于System.Web.dll，必须继承自不同的一个由ASP.NET 2.0定义的WebPart基类，其命名空间为System.Web.UI.WebControls.WebParts。

我们将从简单的hello Word web part 开始：

代码设计:

在我们建好的spring blog中作如下操作把webpart加入站点中:

1、首先把自己写的webpart激活。如下点击populate gallery.

[![image][]][image 1]

2、在spring blog加载web part,首先点击edit page.

[![image][image 2]][image_image 2]

3、再点击add web a part 后，选择我们的samplewebpart.

[![image][image 3]][image_image 3]

4、结果如我们所想的一样

[![image][image 4]][image_image 4]

接着我们做一个复杂点的，用户登陆web part.要做这样一个web part，我们先要加一个 user control,名字命名为LoginUserControl.ascx,

代码设计如下:

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="LoginUserControl.ascx.cs" Inherits="WebUserControl_LoginUserControl" %>
    <style type="text/css">
        .style1
        {
            width: 32%;
            height: 28px;
        }
        .style2
        {
            width: 128px;
        }
    </style>
    <table class="style1">
        <tr>
            <td class="style2">
                <asp:Label ID="lblUserAccount" runat="server" Text="UserAccount:"></asp:Label>
            </td>
            <td>
                <asp:TextBox ID="txtUserAccount" runat="server" TabIndex = "1"></asp:TextBox>
                <asp:RequiredFieldValidator ID="rfvUserAccount" runat="server" 
                    ControlToValidate="txtUserAccount" ErrorMessage="用户名不能为空"></asp:RequiredFieldValidator>
            </td>
        </tr>
        <tr>
            <td class="style2">
                <asp:Label ID="lblPassword" runat="server" Text="Password:"></asp:Label>
            </td>
            <td>
                <asp:TextBox ID="txtPassword" runat="server" TextMode="Password" TabIndex="2"></asp:TextBox>
                <asp:RequiredFieldValidator ID="rfvPassword" runat="server" 
                    ControlToValidate="txtPassWord" ErrorMessage="密码不能为空"></asp:RequiredFieldValidator>
            </td>
        </tr>
        <tr>
            <td class="style2">
                 </td>
            <td>
                <asp:Button ID="btnLogin" runat="server" TabIndex="3" οnclick="btnLogin_Click" 
                    Text="Login" />
                <asp:Label ID="lblResult" runat="server" BorderColor="Red" ForeColor="Red"></asp:Label>
            </td>
        </tr>
    </table>

后台的代码如下：

using System;
    using System.Collections;
    using System.Configuration;
    using System.Data;
    using System.Linq;
    using System.Web;
    using System.Web.Security;
    using System.Web.UI;
    using System.Web.UI.HtmlControls;
    using System.Web.UI.WebControls;
    using System.Web.UI.WebControls.WebParts;
    using System.Xml.Linq;
    
    using LearnWriteWebPart.BE;
    using LearnWriteWebPart.BO;
    using LearnWriteWebPart.Util;
    
    public partial class WebUserControl_LoginUserControl : System.Web.UI.UserControl
    {
        /// <summary>
        /// 
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!Page.IsPostBack)
            {
                SetInitial();
            }
        }
    
        protected void btnLogin_Click(object sender, EventArgs e)
        {
            if (!CheckUserAccountLength())
                return;
            if (!CheckPasswordLength())
                return;
            this.CheckLogin();
        }
    
        #region Private Method
    
        /// <summary>
        /// Initial Control
        /// </summary>
        private void SetInitial()
        {
            txtUserAccount.Focus();
            CodeHelper.DisableIMEModes(new TextBox[] { txtUserAccount, txtPassword});
        }
        
        /// <summary>
        /// Check login
        /// </summary>
        private void CheckLogin()
        {
            UserBE userBE = new UserBE();
            UserBO userBO = new UserBO();
            userBE.UserAccount = txtUserAccount.Text.Trim();
            userBE.Password = txtPassword.Text.Trim();
            if (userBO.CheckUserLogin(userBE))
            {
                lblResult.Text = Constants.SUSSCESSFULLOGIN_USER;
            }
            else
            {
                lblResult.Text = Constants.ERRORLOGIN_USER;
            }
        }
    
        /// <summary>
        /// check password length
        /// </summary>
        /// <returns></returns>
        private bool CheckPasswordLength()
        {
            int length = txtPassword.Text.Trim().Length;
            if (length < 6)
            {
                lblResult.Text = Constants.PASSWORDMINLENGTH_USER;
                return false;
            }
            else if (length > 20)
            {
                lblResult.Text = Constants.PASSWORDMAXLENGTH_USER;
                return false;
            }
            return true;
        }
    
        /// <summary>
        /// Check user account length
        /// </summary>
        /// <returns></returns>
        private bool CheckUserAccountLength()
        {
            int length = txtUserAccount.Text.Trim().Length;
            if (length > 20)
            {
                lblResult.Text = Constants.USERACCOUNTMAXLENGTH_USER;
                return false;
            
            }
            return true;
        }
    
        #endregion
    
    }

UserBE和UserBO的代码相信大家都懂的，我就不贴出来了.

WebPart的代码如下：

using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    
    using System.Web.UI.WebControls.WebParts;
    using System.Xml.Serialization;
    using System.Web.UI;
    
    using LearnWriteWebPart.Util;
    
    namespace LearnWriteWebPart.Webpart
    {
        [ToolboxData("<{0}:UserWebPart runat=server></{0}:UserWebPart>")]
        [XmlRoot(Namespace = "LearnWriteWebPart.Webpart")]
        public class UserWebPart : WebPart
        {
            #region [Private Variable]
    
            private string _ListName = string.Empty;
            private string _Url = string.Empty;
            private string TheListName = Constants.LISTNAME_USER;
            private UserControl _userControl;
    
            #endregion
    
            #region [Custom Properties]
    
            /// <summary>
            /// This list naem
            /// </summary>
            [WebBrowsable(false),
             Personalizable(true)]
            public string ListName
            {
                get
                {
                    return _ListName;
                }
                set
                {
                    _ListName = value;
                }
            }
    
            /// <summary>
            /// The list Url
            /// </summary>
            [WebBrowsable(false),
             Personalizable(true)]
            public string Url
            {
                get
                {
                    return _Url;
                }
                set
                {
                    _Url = value;
                }
            }
    
            #endregion
    
            #region [Constructors]
    
            /// <summary>
            /// The sample constructor
            /// </summary>
            public UserWebPart()
            {
                this.ListName = TheListName;
            }
    
            #endregion
    
            #region [Override Methods]
    
            /// <summary>
            /// Override method to OnInit method
            /// </summary>
            /// <param name="e">The EventsArgs object</param>
            protected override void OnInit(EventArgs e)
            {
                base.OnInit(e);
                SetWebPartTitleAndUrlWhenAdded(this.ListName, this.Url);
                AddControlToWebPart();
            }
    
            #endregion
    
            #region [Private Methods]
    
            /// <summary>
            /// Add Login Control
            /// </summary>
            private void AddControlToWebPart()
            {
                Type controlType = Type.GetType("ASP.webusercontrol_loginusercontrol_ascx,Web_deploy, Version=1.0.0.0, Culture=neutral, PublicKeyToken=1234567f94a516f5");
                _userControl = (UserControl)this.Page.LoadControl(controlType, null);
    
                this.Controls.Add(_userControl);
            }
    
            /// <summary>
            /// Set webpart title and url
            /// </summary>
            /// <param name="ListName"></param>
            /// <param name="Url"></param>
            private void SetWebPartTitleAndUrlWhenAdded(string ListName, string Url)
            {
                this.Title = this.ListName;
                this.TitleUrl = this.Url;
            }
    
            #endregion
        }
    }

结果如下图:

[![image][image 5]][image_image 5]

出现我们预想的画面。

接下来我们再做一个用户祥细信息的webpart和editwebpart.

作者：[spring yang][]

出处：[http://www.cnblogs.com/springyangwc/][http_www.cnblogs.com_springyangwc]

本文版权归作者和博客园共有，欢迎转载，但未经作者同意必须保留此段声明，且在文章页面明显位置给出原文连接，否则保留追究法律责任的权利。

转载于:https://www.cnblogs.com/springyangwc/archive/2011/07/22/2113970.html

[image]: /images/20211220/325a89bb795b48e6b6b1d880ab8c945e.png
[image 1]: http://images.cnblogs.com/cnblogs_com/springyangwc/201107/201107221534091980.png
[image 2]: https://images.cnblogs.com/cnblogs_com/springyangwc/201107/201107221534244365.png
[image_image 2]: /images/20211220/3a1786c9d0184bacba6c613fcd6df0f1.png
[image 3]: https://images.cnblogs.com/cnblogs_com/springyangwc/201107/201107221534283412.png
[image_image 3]: /images/20211220/227e1f541bc544c1844da8dec9bbf5e8.png
[image 4]: https://images.cnblogs.com/cnblogs_com/springyangwc/201107/201107221534317160.png
[image_image 4]: /images/20211220/ac506540c605407ca99c913a62618977.png
[image 5]: https://images.cnblogs.com/cnblogs_com/springyangwc/201107/201107221534355128.png
[image_image 5]: /images/20211220/60ebfee9c4a947aeb9c6ab775a8aa828.png
[spring yang]: http://home.cnblogs.com/u/springyangwc/
[http_www.cnblogs.com_springyangwc]: http://www.cnblogs.com/springyangwc/