c#操作excel

淡淡的烟草味﹌ 2022-05-16 04:18 398阅读 0赞

# [c\#操作excel][c_excel] #

最近想写个脚本来保存程序中的一些日志，最后选择用excel来保存，这里总结一下C\#中使用office.excel的一些技巧吧！

首先在C\#的工程中添加excel的dll。右键点击引用->添加新引用，然后找出Microsoft.Office.Interop. Excel的dll。

![160951499663788.png][]

然后在using中添加：

using System.Reflection;
    using Excel=Microsoft.Office.Interop. Excel;

（如果找不到就自行下载）

using System.Reflection是为了调用缺省方法Missing

接下来是具体的代码：

Excel.Application excelApp = new Excel.Application(); //Excel应用程序变量,初始化
                Excel.Workbook excelDoc; //Excel文档变量
                object OsPath,FilePath;//表格文件的保存地址  
                string FileName;
                FileName="1.xls";
                OsPath =@"C:\Users\admin\Desktop\1.xls";//这里我定义了桌面的地址
                FilePath=string.Format("{0}{1}",(string)OsPath,FileName);//为了自定义地址，加了一个地址拼接
                Console.WriteLine(FilePath); //调试提示用的           
                object Nothing;
                Nothing=Missing.Value;//给Nothing一个缺省的值
                if (File.Exists((string)FilePath))
                {
    
                    Console.WriteLine("已经有了1.xls这个文件，文件路径为： {0}", FilePath);
                    Console.WriteLine(FilePath);
                    // excelDoc = excelApp.Workbooks.Open(path);  //打开原来文件
                }
                else {
                    Console.WriteLine("还没有1.xls这个文件",FilePath);
                }
                excelDoc = excelApp.Workbooks.Add(Nothing);//Add（）中的值不定义的时候给个缺省值就好了
                Excel.Worksheet ws = (Excel.Worksheet)excelDoc.Sheets[1];
                Excel.Range i;//定义范围的变量
                i = ws.get_Range("A1", "A2");//从“A1”到“A2”的位置
                i.Value2 = "数据1";
                //WdSaveFormat为Excel文档的保存格式
                object format = Excel.XlFileFormat.xlWorkbookDefault;
                //将excelDoc文档对象的内容保存为XLSX文档
                excelDoc.SaveAs(FilePath, format, Nothing, Nothing, Nothing, Nothing, Excel.XlSaveAsAccessMode.xlExclusive, Nothing, Nothing, Nothing, Nothing, Nothing);
                excelDoc.Close(Nothing, Nothing, Nothing);
                //关闭excelApp组件对象
                excelApp.Quit();
                Console.WriteLine("创建完毕");

喝水不忘挖井人，参考的博文地址：

[http://hejianlong.123.blog.163.com/blog/static/26715839200932113312156/][http_hejianlong.123.blog.163.com_blog_static_26715839200932113312156]

[http://wenku.baidu.com/link?url=gA8t6GndXWmI95mavA37Vb5qI69EEpJThygePYPU4TObam2tDSLmkDqzuQWMlZb4H-bKjpjYbn9gzJhs9fliHNpnSIEfyTV0Inc0o6MhVsu][http_wenku.baidu.com_link_url_gA8t6GndXWmI95mavA37Vb5qI69EEpJThygePYPU4TObam2tDSLmkDqzuQWMlZb4H-bKjpjYbn9gzJhs9fliHNpnSIEfyTV0Inc0o6MhVsu]

//引用Microsoft.Office.Interop.Excel.dll文件 
    //添加using
    using Microsoft.Office.Interop.Excel;
    using Excel=Microsoft.Office.Interop.Excel;
     
    //设置程序运行语言
    System.Globalization.CultureInfo CurrentCI = System.Threading.Thread.CurrentThread.CurrentCulture;
    System.Threading.Thread.CurrentThread.CurrentCulture = new System.Globalization.CultureInfo("en-US");
    //创建Application
    Excel.Application xlApp = new Excel.Application();
    //设置是否显示警告窗体
    excelApp.DisplayAlerts = false;
    //设置是否显示Excel
    excelApp.Visible = false;
    //禁止刷新屏幕
    excelApp.ScreenUpdating = false;
    //根据路径path打开
    Excel.Workbook xlsWorkBook = excelApp.Workbooks.Open(path, System.Type.Missing, System.Type.Missing, System.Type.Missing,
    System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing,
    System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing);
    //获取Worksheet对象
    Excel.Worksheet xlsWorkSheet = (Worksheet)xlsWorkBook.Worksheets["sales plan"];
     
    ***获取最后一行、一列的两种方法***
    //获取已用的范围数据
    int rowsCount = xlsWorkSheet.UsedRange.Rows.Count;
    int colsCount = xlsWorkSheet.UsedRange.Columns.Count;
    int rowsCount = xlsWorkSheet.get_Range("A65536", "A65536").get_End(Microsoft.Office.Interop.Excel.XlDirection.xlUp).Row;
    int colsCount = xlsWorkSheet.get_Range("ZZ1", "ZZ1").get_End(Microsoft.Office.Interop.Excel.XlDirection.xlToLeft).Column;
     
    ***将Excel数据存入二维数组***
    //rowsCount：最大行    colsCount：最大列
    Microsoft.Office.Interop.Excel.Range c1 = (Microsoft.Office.Interop.Excel.Range)xlsWorkSheet.Cells[1, 1];
    Microsoft.Office.Interop.Excel.Range c2 = (Microsoft.Office.Interop.Excel.Range)xlsWorkSheet.Cells[rowsCount, colsCount];
    Range rng = (Microsoft.Office.Interop.Excel.Range)xlsWorkSheet.get_Range(c1, c2);
    object[,] exceldata = (object[,])rng.get_Value(Microsoft.Office.Interop.Excel.XlRangeValueDataType.xlRangeValueDefault);
     
    //在第一列的左边插入一列
    Excel.Range xlsColumns = (Excel.Range)xlsWorkSheet.Columns[1, System.Type.Missing];
    xlsColumns.Insert(XlInsertShiftDirection.xlShiftToRight, Type.Missing);
    //xlsSheetTemplateMajor_Meisai.Cells.get_Range(xlsSheetTemplateMajor_Meisai.Cells[1, 1], xlsSheetTemplateMajor_Meisai.Cells[65535, 1]).Insert(Type.Missing, Type.Missing);
     Excel.Range rng;
                rng = worksheet.get_Range("A:A", "A:A");
                rng.Insert(Excel.XlDirection.xlToRight, Excel.XlInsertFormatOrigin.xlFormatFromLeftOrAbove);
    Excel.Range rng = (Microsoft.Office.Interop.Excel.Range)xlsWorkSheet.Columns[12, Type.Missing];
    rng.Insert(XlInsertShiftDirection.xlShiftToRight, XlInsertFormatOrigin.xlFormatFromLeftOrAbove);
     
     
    //删除行
    Range deleteRng = (Range)xlsWorkSheetSapExcel.Rows[2, System.Type.Missing];
    deleteRng.Delete(Excel.XlDeleteShiftDirection.xlShiftUp);
     
    //删除一列数据
    ((Microsoft.Office.Interop.Excel.Range)xlWorkSheet.Cells[1, 11]).Select();
    ((Microsoft.Office.Interop.Excel.Range)xlWorkSheet.Cells[1, 11]).EntireColumn.Delete(0);
    ((Excel.Range)xlsSheetShareMajor_Meisai.Cells[1, 3]).EntireColumn.Delete (0);
                 
    //设置背景色为红色
    xlsWorkSheet.get_Range("A1", "A1").Interior.ColorIndex = 3;
     
    //设置Format属性    属性值可以通过在vba中录宏得到
    Microsoft.Office.Interop.Excel.Range range1 = xlsWorkSheetAdd.get_Range("J1", "J65535");
    range1.NumberFormat = "@";//文本格式
    range1 = xlsWorkSheetAdd.get_Range("L1", "L65535");
    range1.NumberFormat = "0.00";//保留两位小数
    Excel.Range rng = xlsSheetShareMajor_Meisai.Columns["I", System.Type.Missing] as Excel.Range;
    rng.NumberFormatLocal =@"yyyy/m/d";//设置日期格式
     
     
    //替换
    Range Drng = xlsWorkSheetTemplate.get_Range("D1", "D65535");
    Drng.Replace(" ", "", XlLookAt.xlPart, XlSearchOrder.xlByColumns, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing);
    Drng.TextToColumns(Drng, Excel.XlTextParsingType.xlDelimited, Excel.XlTextQualifier.xlTextQualifierSingleQuote, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing);
     
    //分列处理 设置为文本
    Range TextToColumnRng = xlsWorkSheet.get_Range("E1", "E65535");
    xlsWorkSheet.get_Range("E1", "E65535").TextToColumns(TextToColumnRng, Excel.XlTextParsingType.xlDelimited, Excel.XlTextQualifier.xlTextQualifierSingleQuote, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing);
     
    //设置公式
    rng = xlMergeFileWorkSheet.get_Range("D2", "D" + rowcount);//设置列范围
    rng.Formula = @"=IF(RC[-3]=""H"",""Survivor"",""Donor"")";//设置公式   @的问题
    //rng.NumberFormat = "$0.00";//设置格式
    copyRng = xlsSheetTemplateMajor_Meisai.get_Range("N3", "N" + lastRowTemplate);
    copyRng.Formula = "=VLOOKUP(RC[-12],AR残!C[-13]:C[-11],2,0)";
     
    //通过行、列的索引获取值
    string f = Convert.ToString(xlsSheetShareMajor_Meisai.get_Range(xlsSheetShareMajor_Meisai.Cells[2, 1], xlsSheetShareMajor_Meisai.Cells[2,1]).Value2);
     
    //筛选
    //确定筛选范围
    D1_rng = D1_TemSheet.Cells.get_Range(D1_TemSheet.Cells[1, 1], D1_TemSheet.Cells[1, 50]);
    //执行筛选动作
    rng.AutoFilter(5, "S", Microsoft.Office.Interop.Excel.XlAutoFilterOperator.xlFilterValues, Type.Missing, true);
    rng.AutoFilter(6, "H", Microsoft.Office.Interop.Excel.XlAutoFilterOperator.xlOr, "F", true);
    D1_rng.AutoFilter(D1_Column + 2, "#N/A", Microsoft.Office.Interop.Excel.XlAutoFilterOperator.xlFilterValues,"#N/A",false);
     
    //复制粘贴
    D2_rng.Copy(Type.Missing);
    D2_TemSheet.Cells.get_Range(D2_TemSheet.Cells[2, (D2_Column + 1)], D2_TemSheet.Cells[2, (D2_Column + 1)]).PasteSpecial(Excel.XlPasteType.xlPasteValues, Excel.XlPasteSpecialOperation.xlPasteSpecialOperationNone, false, false);
     
     
    //Find查找
    rng = mySheet.get_Range("A1", "IV10").Find(arrLabel[j], Type.Missing,
                            Microsoft.Office.Interop.Excel.XlFindLookIn.xlValues, Microsoft.Office.Interop.Excel.XlLookAt.xlWhole,
                            Microsoft.Office.Interop.Excel.XlSearchOrder.xlByRows,
                            Microsoft.Office.Interop.Excel.XlSearchDirection.xlNext, false, Type.Missing, Type.Missing);
     
    //文字占满单元格
    range.EntireColumn.AutoFit();
     
    //另存
    xlsWorkBook.SaveAs(FileName, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, XlSaveAsAccessMode.xlNoChange, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
     
    ***关闭对象***
    System.Runtime.InteropServices.Marshal.ReleaseComObject(xlsWorkSheet);
    System.Runtime.InteropServices.Marshal.ReleaseComObject(xlsWorkBook);
    excelApp.Quit();
    Kill(excelApp);//调用方法关闭进程
    GC.Collect();
     
    /// <summary>
    /// 关闭Excel进程
    /// </summary>
    public class KeyMyExcelProcess
    {
        [DllImport("User32.dll", CharSet = CharSet.Auto)]
        public static extern int GetWindowThreadProcessId(IntPtr hwnd, out int ID);
        public static void Kill(Microsoft.Office.Interop.Excel.Application excel)
        {
            try
            {
                IntPtr t = new IntPtr(excel.Hwnd);   //得到这个句柄，具体作用是得到这块内存入口
                int k = 0;
                GetWindowThreadProcessId(t, out k);   //得到本进程唯一标志k
                System.Diagnostics.Process p = System.Diagnostics.Process.GetProcessById(k);   //得到对进程k的引用
                p.Kill();     //关闭进程k
            }
            catch (System.Exception ex)
            {
                throw ex;
            }
        }
    }
         
         
    //关闭打开的Excel方法
     public void CloseExcel(Microsoft.Office.Interop.Excel.Application ExcelApplication, Microsoft.Office.Interop.Excel.Workbook ExcelWorkbook)
    {
       ExcelWorkbook.Close(false, Type.Missing, Type.Missing);
       ExcelWorkbook = null;
       ExcelApplication.Quit();
       GC.Collect();
       KeyMyExcelProcess.Kill(ExcelApplication);
    }

**0. ****导入命名空间：**** **

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> <p>2</p> <p>3</p> <p>4</p> </td> 
   <td> <p><code>using</code>&nbsp;<code>Microsoft.Office.Core;</code></p> <p><code>using</code>&nbsp;<code>Microsoft.Office.Interop.Excel;</code></p> <p><code>using</code>&nbsp;<code>System.IO;</code></p> <p><code>using</code>&nbsp;<code>System.Reflection;</code></p> </td> 
  </tr> 
 </tbody> 
</table>

**1. ****如何打开已有****excel****文档，或者创建一个新的****excel****文档**** **

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> <p>2</p> <p>3</p> </td> 
   <td> <p><code>Application app =&nbsp;</code><code>new</code>&nbsp;<code>Application();</code></p> <p><code>Workbooks wbks = app.Workbooks;</code></p> <p><code>_Workbook _wbk = wbks.Add(xxx);</code></p> </td> 
  </tr> 
 </tbody> 
</table>

若打开已有excel，把“xxx”替换成该excel的文件路径；

**注：**若新建一个excel文档，“xxx”替换成true即可；不过这里新建的excel文档默认只有一个sheet。

** **

**2. ****取得、删除和添加****sheet**

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> </td> 
   <td> <p><code>Sheets shs = _wbk.Sheets;</code></p> </td> 
  </tr> 
 </tbody> 
</table>

2.1取得：

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> <p>2</p> </td> 
   <td> <p><code>//i是要取得的sheet的index</code></p> <p><code>_Worksheet _wsh = (_Worksheet)shs.get_Item(i)</code></p> </td> 
  </tr> 
 </tbody> 
</table>

2.2 删除：

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> <p>2</p> <p>3</p> </td> 
   <td> <p><code>//删除sheet必须的设置</code></p> <p><code>app.DisplayAlerts =&nbsp;</code><code>false</code><code>;</code></p> <p><code>_wsh.Delete();</code></p> </td> 
  </tr> 
 </tbody> 
</table>

2.3 添加：

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> <p>2</p> </td> 
   <td> <p><code>/a(before)，b(after)：确定添加位置；c：数目；d：类型</code></p> <p><code>app.Worksheets.Add(a，b，c，d);</code></p> </td> 
  </tr> 
 </tbody> 
</table>

2.4 sheet的重命名

**3. ****删除行和列**** **

3.1 删除行：

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> </td> 
   <td> <p><code>((Range)_wsh.Rows[3, Missing.Value]).Delete(XlDeleteShiftDirection.xlShiftUp);</code></p> </td> 
  </tr> 
 </tbody> 
</table>

3.2 删除列：

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> <p>2</p> <p>3</p> <p>4</p> </td> 
   <td> <p><code>_wsh.get_Range(</code></p> <p><code>_wsh.Cells[1, 2],</code></p> <p><code>_wsh.Cells[_wsh.Rows.Count, 2]).Delete(XlDeleteShiftDirection.xlShiftToLeft</code></p> <p><code>);</code></p> </td> 
  </tr> 
 </tbody> 
</table>

**4. ****添加行和列**** **

4.1 添加行：

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> <p>2</p> </td> 
   <td> <p><code>((Range)_wsh.Rows[11, Missing.Value])</code></p> <p><code>.Insert(Missing.Value, XlInsertFormatOrigin.xlFormatFromLeftOrAbove);</code></p> </td> 
  </tr> 
 </tbody> 
</table>

4.2 添加列：

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> <p>2</p> <p>3</p> </td> 
   <td> <p><code>_wsh.get_Range(</code></p> <p><code>_wsh.Cells[1, 1], _wsh.Cells[_wsh.Rows.Count, 1])</code></p> <p><code>.Insert(Missing.Value, XlInsertShiftDirection.xlShiftToRight);</code></p> </td> 
  </tr> 
 </tbody> 
</table>

**5. ****单元格操作**** **

5.1 单元格的取得

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> <p>2</p> </td> 
   <td> <p><code>//获得单元格对象</code></p> <p><code>_wsh.Cells[row, cell]</code></p> </td> 
  </tr> 
 </tbody> 
</table>

5.2 设置公式

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> <p>2</p> </td> 
   <td> <p><code>//在对应的单元格输入公式即可</code></p> <p><code>_wsh.Cells[row, cell] =&nbsp;</code><code>"=Sum(A1/B1)"</code><code>;　</code></p> </td> 
  </tr> 
 </tbody> 
</table>

5.3 合并单元格

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> </td> 
   <td> <p><code>((Range)_wsh.Rows[1, Missing.Value]).Merge(Missing.Value);</code></p> </td> 
  </tr> 
 </tbody> 
</table>

5.4 设置行高和列宽

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> <p>2</p> </td> 
   <td> <p><code>((Range)_wsh.Rows[3, Missing.Value]).RowHeight = 5;</code></p> <p><code>((Range)_wsh.Rows[3, Missing.Value]).ColumnWidth = 5;</code></p> </td> 
  </tr> 
 </tbody> 
</table>

5.5 设置单元格颜色 颜色共有56中，详情请参照附录的\[颜色对照表\]

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> </td> 
   <td> <p><code>((Range)_wsh.Rows[1, Missing.Value]).Interior.ColorIndex = 3;</code></p> </td> 
  </tr> 
 </tbody> 
</table>

5.6 设置字号

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> </td> 
   <td> <p><code>((Range)_wsh.Cells[1,&nbsp;</code><code>"B"</code><code>]).Font.Size = 8;</code></p> </td> 
  </tr> 
 </tbody> 
</table>

5.7 是否设置粗体

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> </td> 
   <td> <p><code>((Range)_wsh.Rows[1, Missing.Value]).Font.Bold =&nbsp;</code><code>false</code><code>;</code></p> </td> 
  </tr> 
 </tbody> 
</table>

5.8 单元格/区域、水平垂直居中

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> </td> 
   <td> <p><code>((Range)_wsh.Cells[2, 1]).HorizontalAlignment = XlVAlign.xlVAlignCenter;</code></p> </td> 
  </tr> 
 </tbody> 
</table>

5.9 设置区域边框

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> </td> 
   <td> <p><code>((Range)_wsh.Cells[3, 3]).Borders.LineStyle = 3;</code></p> </td> 
  </tr> 
 </tbody> 
</table>

5.10 设置边框的上、下、左、右线条

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> <p>2</p> <p>3</p> <p>4</p> <p>5</p> <p>6</p> <p>7</p> <p>8</p> <p>9</p> <p>10</p> <p>11</p> <p>12</p> <p>13</p> <p>14</p> <p>15</p> <p>16</p> <p>17</p> <p>18</p> <p>19</p> </td> 
   <td> <p><code>//左</code></p> <p><code>_wsh.get_Range(</code></p> <p><code>_wsh.Cells[2, 1], _wsh.Cells[2, 2])</code></p> <p><code>.Borders[XlBordersIndex.xlEdgeLeft].Weight = XlBorderWeight.xlThick;</code><code>//</code></p> <p><code>&nbsp;</code>&nbsp;</p> <p><code>//右</code></p> <p><code>_wsh.get_Range(</code></p> <p><code>_wsh.Cells[2, 1], _wsh.Cells[2, 2])</code></p> <p><code>.Borders[XlBordersIndex.xlEdgeRight].Weight = XlBorderWeight.xlThick;</code><code>//</code></p> <p><code>&nbsp;</code>&nbsp;</p> <p><code>//上</code></p> <p><code>_wsh.get_Range(</code></p> <p><code>_wsh.Cells[2, 1], _wsh.Cells[2, 2])</code></p> <p><code>.Borders[XlBordersIndex.xlEdgeTop].Weight = XlBorderWeight.xlThick;</code><code>//下</code></p> <p><code>&nbsp;</code>&nbsp;</p> <p><code>//下</code></p> <p><code>_wsh.get_Range(</code></p> <p><code>_wsh.Cells[2, 1], _wsh.Cells[2, 2])</code></p> <p><code>.Borders[XlBordersIndex.xlEdgeBottom].Weight = XlBorderWeight.xlThick;</code></p> </td> 
  </tr> 
 </tbody> 
</table>

**6. ****指定区域的复制**** **

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> <p>2</p> <p>3</p> <p>4</p> <p>5</p> <p>6</p> <p>7</p> <p>8</p> <p>9</p> <p>10</p> <p>11</p> <p>12</p> <p>13</p> <p>14</p> </td> 
   <td> <p><code>_Worksheet _wsh = (_Worksheet)shs.get_Item(1);</code><code>//复制选中区域的内容</code></p> <p><code>&nbsp;</code>&nbsp;</p> <p><code>Range range = _wsh.get_Range(_wsh.Cells[7, 1], _wsh.Cells[10, _wsh.Columns.Count]);</code></p> <p><code>&nbsp;</code>&nbsp;</p> <p><code>range.Select();</code></p> <p><code>range.Copy(Type.Missing);</code></p> <p><code>&nbsp;</code>&nbsp;</p> <p><code>//选中粘贴的起始位置</code></p> <p><code>Range test = ((Range)_wsh.Cells[11, 1]);</code></p> <p><code>test.Select();</code></p> <p><code>&nbsp;</code>&nbsp;</p> <p><code>//屏蔽掉Alert，默认确定粘贴</code></p> <p><code>app.DisplayAlerts =&nbsp;</code><code>false</code><code>;</code></p> <p><code>test.Parse(Missing.Value, Missing.Value);</code></p> </td> 
  </tr> 
 </tbody> 
</table>

**注：**Type.Missing和Missing.Value，在excel的操作中被视为某些参数的默认值，他们起到的作用很多时候是形式补足参数

**7. ****excel****文件的保存，及后续处理**** **

7.1 文件保存

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> <p>2</p> <p>3</p> <p>4</p> <p>5</p> </td> 
   <td> <p><code>//屏蔽掉系统跳出的Alert</code></p> <p><code>app.AlertBeforeOverwriting =&nbsp;</code><code>false</code><code>;</code></p> <p><code>&nbsp;</code>&nbsp;</p> <p><code>//保存到指定目录</code></p> <p><code>SaveAs(filePath, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value);</code></p> </td> 
  </tr> 
 </tbody> 
</table>

**注：**这个地方只能采用该方法保存，不然在指定路径下保存文件外，在我的文档中也会生成一个对应的副本

7.2 后续处理：退出和释放

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> <p>2</p> <p>3</p> <p>4</p> <p>5</p> <p>6</p> <p>7</p> </td> 
   <td> <p><code>//_wbk.Close(null, null, null);</code></p> <p><code>//wbks.Close();</code></p> <p><code>app.Quit();</code></p> <p><code>&nbsp;</code>&nbsp;</p> <p><code>//释放掉多余的excel进程</code></p> <p><code>System.Runtime.InteropServices.Marshal.ReleaseComObject(app);</code></p> <p><code>app =&nbsp;</code><code>null</code><code>;</code></p> </td> 
  </tr> 
 </tbody> 
</table>

说明：在application关闭的过程中，通常我们有两种方案：

\#直接退出app

\#先关闭workbook，然后关闭workbooks，最后在退出app

鉴于这两种方式，或许本质上是一样的(这点需要证明)，但是依据我们软件开发的原则：哪里需要哪里声明，哪里结束哪里释放回收。

既然在直接退出app的时候，我们不清楚workbook和workbooks具体在什么时间关闭，不如在结束的时候直接手动关闭，这样做可以做到资源的快速直接回收；

所以，建议采用先关闭workbook，然后关闭workbooks，最后在退出app。

**8. ****关于单元格设置域和取得域里需要的数据**** **

8.1 若单元格已经设置为下拉框

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> <p>2</p> <p>3</p> </td> 
   <td> <p><code>//这里的“1，2，3”设置的就是下拉框的值</code></p> <p><code>((Range)_wsh.Cells[2, 1])</code></p> <p><code>.Validation.Modify(XlDVType.xlValidateList, XlDVAlertStyle.xlValidAlertStop, Type.Missing,&nbsp;</code><code>"1,2,3"</code><code>, Type.Missing);</code></p> </td> 
  </tr> 
 </tbody> 
</table>

8.2 若单元格还没有设置为下拉框的形式

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> <p>2</p> </td> 
   <td> <p><code>((Range)_wsh.Cells[2, 1])</code></p> <p><code>.Validation.Add(XlDVType.xlValidateList, XlDVAlertStyle.xlValidAlertStop, Type.Missing,</code><code>"1,2,3"</code><code>, Type.Missing);</code></p> </td> 
  </tr> 
 </tbody> 
</table>

8.3 取得下拉框域的值

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> </td> 
   <td> <p><code>string</code>&nbsp;<code>strValue = ((Range)_wsh.Cells[2, 1]).Validation.Formula1;</code></p> </td> 
  </tr> 
 </tbody> 
</table>

**注：**若在excel模板中通过有效性设定了下拉框的值，strValue得到的将会是excel里的公式，需将其转换, 取得strValue后，可以根据其索引得到你需要的数值；

**9. ****隐藏行和隐藏列**** **

9.1 隐藏行

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> </td> 
   <td> <p><code>_wsh.get_Range(_wsh.Cells[19, 1], _wsh.Cells[22, 1]).EntireRow.Hidden =&nbsp;</code><code>true</code><code>;</code></p> </td> 
  </tr> 
 </tbody> 
</table>

9.2 隐藏列

<table> 
 <tbody> 
  <tr> 
   <td> <p>1</p> <p>2</p> </td> 
   <td> <p><code>_wsh.get_Range(_wsh.Cells[1, 1], _wsh.Cells[_wsh.Rows.Count, 1])</code></p> <p><code>.EntireColumn.Hidden =&nbsp;</code><code>true</code><code>;</code></p> </td> 
  </tr> 
 </tbody> 
</table>

[c_excel]: https://www.cnblogs.com/carrterr/p/4028104.html
[160951499663788.png]: /images/20220516/6a67aeca842e467c873e5a5dfb5edbbd.png
[http_hejianlong.123.blog.163.com_blog_static_26715839200932113312156]: http://hejianlong.123.blog.163.com/blog/static/26715839200932113312156/
[http_wenku.baidu.com_link_url_gA8t6GndXWmI95mavA37Vb5qI69EEpJThygePYPU4TObam2tDSLmkDqzuQWMlZb4H-bKjpjYbn9gzJhs9fliHNpnSIEfyTV0Inc0o6MhVsu]: http://wenku.baidu.com/link?url=gA8t6GndXWmI95mavA37Vb5qI69EEpJThygePYPU4TObam2tDSLmkDqzuQWMlZb4H-bKjpjYbn9gzJhs9fliHNpnSIEfyTV0Inc0o6MhVsu