如何在一個MS Excel文件中將2個gridviews導出到2個單獨的工作表中？

Question

如何通過單擊1按鈕將2個gridviews（GridView1和GridView2）導出到一個MS Excel文件中的2個單獨的工作表中？ 目前，我只能將1個gridview導出到Excel工作表，該工作表的文件名與工作表名稱相同。 但是我想將gridviews分為2個單獨的工作表，我希望工作表名稱由我自己定義/設置。 謝謝

public void ExportGridToExcel()
{
      Response.Clear();
      Response.Buffer = true;
      Response.ClearContent();
      Response.ClearHeaders();
      Response.Charset = "";

      string FileName ="Export"+DateTime.Now+".xls";

      StringWriter strwritter = new StringWriter();
      HtmlTextWriter htmltextwrtter = new HtmlTextWriter(strwritter);

      Response.Cache.SetCacheability(HttpCacheability.NoCache);
      Response.ContentType = "application/vnd.ms-excel";
      Response.AddHeader("Content-Disposition","attachment;filename=" + FileName);

      GridView1.GridLines = GridLines.Both;
      GridView1.HeaderStyle.Font.Bold = true;
      GridView1.RenderControl(htmltextwrtter);

      Response.Write(strwritter.ToString());
      Response.End();
}

Answer 1

//編輯我的答案，因為只有一個導出按鈕：看一下這個問題 ：

首先添加以下名稱空間：

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

因此，基本上，您應該擁有（或繼續制作）2個DataTable（以綁定到2個gridviews）：dt1和dt2

制作數據集並向其中添加2個數據表

DataSet dataset = new DataSet();
        dataset.Tables.Add(dt1);
        dataset.Tables.Add(dt2);

然后

//Print using Ofice InterOp
    Excel.Application excel = new Excel.Application();

    var workbook = (Excel._Workbook)(excel.Workbooks.Add(Missing.Value));

    for (var i = 0; i < dataset.Tables.Count; i++)
    {

            if (workbook.Sheets.Count <= i)
            {
                workbook.Sheets.Add(Type.Missing, Type.Missing, Type.Missing,
                                    Type.Missing);
            }

            //NOTE: Excel numbering goes from 1 to n
            var currentSheet = (Excel._Worksheet)workbook.Sheets[i + 1]; 

            for (var y = 0; y < dataset.Tables[i].Rows.Count; y++)
            {
                for (var x = 0; x < dataset.Tables[i].Rows[y].ItemArray.Count(); x++)
                {
                    currentSheet.Cells[y+1, x+1] = dataset.Tables[i].Rows[y].ItemArray[x];
                }
            }
    }

    string outfile = @"C:\APP_OUTPUT\EXCEL_TEST.xlsx";

    workbook.SaveAs( outfile, Type.Missing, Type.Missing, Type.Missing,
                    Type.Missing, Type.Missing, Excel.XlSaveAsAccessMode.xlNoChange,
                    Type.Missing, Type.Missing, Type.Missing, Type.Missing,
                    Type.Missing);

    workbook.Close();
    excel.Quit();

更改工作表名稱，我相信您可以這樣做：

currentSheet.Name = "your sheet name"

Answer 2

您需要修改代碼，以便在excel文件中創建工作表，然后將數據從網格手動復制到excel文件，並將此代碼創建為以Grid，Sheetname和Sheetid之類的參數（如1，2等）作為參數的函數然后在按鈕單擊事件中，分別對grid1調用兩次，對grid2調用一次，分別使用不同的工作表名稱和工作表ID 1和2對其進行調用。 該函數的代碼如下。

在按鈕單擊事件中編寫這兩行代碼，然后通過將excel應用程序和工作簿也作為參數傳遞給每個網格兩次調用該函數。

     // creating Excel Application
     Microsoft.Office.Interop.Excel._Application app  = new Microsoft.Office.Interop.Excel.Application();

    // creating new WorkBook within Excel application
    Microsoft.Office.Interop.Excel._Workbook workbook =  app.Workbooks.Add(Type.Missing);

 public void ExportToExcel(Microsoft.Office.Interop.Excel._Application app, Microsoft.Office.Interop.Excel._Workbook workbook,GridView gridview,string SheetName,int sheetid)
 {  


        // creating new Excelsheet in workbook
         Microsoft.Office.Interop.Excel._Worksheet worksheet = null;                   

       // see the excel sheet behind the program
        app.Visible = true;

       // get the reference of first sheet. By default its name is Sheet1.
       // store its reference to worksheet
        worksheet = workbook.Sheets["Sheet"+ sheetid];
        worksheet = workbook.ActiveSheet;

        // changing the name of active sheet
        worksheet.Name = sheetname; 

        // storing header part in Excel
        for(int i=1;i<gridview.Columns.Count+1;i++)
        {
              worksheet.Cells[1, i] = gridview.Columns[i-1].HeaderText;
        }



        // storing Each row and column value to excel sheet
        for (int i=0; i < gridview.Rows.Count-1 ; i++)
        {
            for(int j=0;j<gridview.Columns.Count;j++)
            {
                worksheet.Cells[i + 2, j + 1] = gridview.Rows[i].Cells[j].Value.ToString();
            }
        }


        // save the application
        workbook.SaveAs("c:\\output.xls",Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing,Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlExclusive , Type.Missing, Type.Missing, Type.Missing, Type.Missing);

        // Exit from the application
      app.Quit();
    }