將gridview導出爲.xls

Question

我正在研究一個具有gridview控件的網頁。我需要將數據轉換爲.xls格式。我可以創建.xls文件並傳輸數據，但問題是我需要將網格單元格顯示在Excel表格的背景中。現在，它只顯示沒有網格單元的空白背景。否則，gridview會正常傳輸。由於此問題，打印.xls文件是一個問題。具有更多列的表格不是壓縮，而是打印2-3頁。我的代碼如下：

public static void ExportToXLS(string fileName, GridView gv,string companyName,string reportTitle , string period) 
    { 
     //For writing to XLS file 
     HttpContext.Current.Response.Clear(); 
     HttpContext.Current.Response.AddHeader("content-disposition", string.Format("attachment; filename={0}", fileName)); 
     HttpContext.Current.Response.ContentType = "application/ms-excel"; 

     using (StringWriter sw = new StringWriter()) 
     { 
      using (HtmlTextWriter htw = new HtmlTextWriter(sw)) 
      { 

       Table tableReport = new Table(); 
       tableReport.GridLines = gv.GridLines; 

       // add the header row to the table 
       if (gv.HeaderRow != null) 
       { 
        ReportList.PrepareControlForExport(gv.HeaderRow); 
        tableReport.Rows.Add(gv.HeaderRow); 
       } 

       // add each of the data rows to the table 
       foreach (GridViewRow row in gv.Rows) 
       { 
        ReportList.PrepareControlForExport(row); 
        tableReport.Rows.Add(row); 
       } 

       // add the footer row to the table 
       if (gv.FooterRow != null) 
       { 
        ReportList.PrepareControlForExport(gv.FooterRow); 
        tableReport.Rows.Add(gv.FooterRow); 
       } 

       //Takes value of company name 
       System.Web.UI.WebControls.Label labelCompany = new System.Web.UI.WebControls.Label(); 
       labelCompany.Text = companyName; 
       labelCompany.Font.Bold = true; 

       //Takes value of report title 
       System.Web.UI.WebControls.Label labelReport = new System.Web.UI.WebControls.Label(); 
       labelReport.Text = reportTitle; 
       labelReport.Font.Bold = true; 

       //Takes value of report period 
       System.Web.UI.WebControls.Label labelPeriod = new System.Web.UI.WebControls.Label(); 
       labelPeriod.Text = period; 

       // render the htmlwriter into the response 
       htw.Write("<center>"); 
       labelCompany.RenderControl(htw); 
       htw.Write("<br/>"); 
       labelReport.RenderControl(htw); 
       htw.Write("<br/>"); 
       labelPeriod.RenderControl(htw); 
       htw.Write("</center>"); 
       htw.Write("<br/>"); 
       tableReport.RenderControl(htw); 
       HttpContext.Current.Response.Write(sw.ToString()); 
       HttpContext.Current.Response.End(); 
      } 
     } 
    } 

有什麼建議嗎？

Answer 1

Response.Clear(); 
    Response.Buffer = true; 
    Response.AddHeader("content-disposition",attachment;filename=GridViewExport.xls"); 
    Response.Charset = ""; 
    Response.ContentType = "application/vnd.ms-excel"; 

    StringWriter sw = new StringWriter(); 
    HtmlTextWriter hw = new HtmlTextWriter(sw); 

Answer 2

編號：Export grid

試試這個：

protected void btnExportExcel_Click(object sender, EventArgs e) 

    {  

     Response.Clear(); 
     Response.Buffer = true; 

     Response.AddHeader("content-disposition", 

     "attachment;filename=GridViewExport.xls"); 

     Response.Charset = ""; 

     Response.ContentType = "application/vnd.ms-excel"; 

     StringWriter sw = new StringWriter(); 

     HtmlTextWriter hw = new HtmlTextWriter(sw); 

     grdExport.AllowPaging = false; 

     oMailing.GetData(out ODs); 

     grdExport.DataSource = ODs; 

     grdExport.DataBind(); 

     //Change the Header Row back to white color 

     grdExport.HeaderRow.Style.Add("background-color", "#FFFFFF"); 

     //Apply style to Individual Cells 

     grdExport.HeaderRow.Cells[0].Style.Add("background-color", "green"); 

     grdExport.HeaderRow.Cells[1].Style.Add("background-color", "green"); 

     grdExport.HeaderRow.Cells[2].Style.Add("background-color", "green"); 

     grdExport.HeaderRow.Cells[3].Style.Add("background-color", "green"); 

     grdExport.HeaderRow.Cells[4].Style.Add("background-color", "green"); 

     grdExport.RenderControl(hw); 

     //style to format numbers to string 

     string style = @"<style> .textmode { mso-number-format:\@; } </style>"; 

     Response.Write(style); 

     Response.Output.Write(sw.ToString()); 

     Response.Flush(); 

     Response.End(); 

    } 

Answer 3

所有的答案會得到你想要的東西 - 你只是缺少格式化部分。

在一天結束時，您真正創建的是一個Excel可以讀取的HTML文件（帶有HTML表格）。 @BhaskarreddyMule中的RESPONSE標題是「強制」客戶端將文件視爲「xls」文件，並且如果它已經運行並打開它（但底線是其不是真正的「本地」Excel文件

現在已經不存在了，用HTML來思考，像在HTML中一樣對列，行和文本內容進行樣式設置，這就是你如何控制格式（即老派「nowrap」來防止包裝細胞內容，字體大小等等）

我一段時間沒有這樣做（當我需要這樣做時，我已經轉移到了Excel XML和VB.Net XML文字）我不知道你對RenderControl有多少控制權......或者如果你不得不走上更遠的「老學校」並建立HTML桌面e從頭開始的字符串.....

Answer 4

首先請參考：How to export nested gridview to excel/word with gridlines on the child grid，希望它能幫助您解決您的問題。

編號：How to export gridview to excel in a console type application?

您可以參考以下鏈接導出到Excel的控制。這是一個自定義控件。希望它能幫助你。

http://exporttoexcel.codeplex.com/

Styling exported grid：

protected void btnExportExcel_Click(object sender, EventArgs e) 
     { 
      Response.Clear(); 
      Response.Buffer = true; 

      Response.AddHeader("content-disposition", 
      "attachment;filename=GridViewExport.xls"); 

      Response.Charset = ""; 
      Response.ContentType = "application/vnd.ms-excel"; 
      StringWriter sw = new StringWriter(); 
      HtmlTextWriter hw = new HtmlTextWriter(sw); 

      grdExport.AllowPaging = false; 
      oMailing.GetData(out ODs); 
      grdExport.DataSource = ODs; 
      grdExport.DataBind(); 

      //Change the Header Row back to white color 
      grdExport.HeaderRow.Style.Add("background-color", "#FFFFFF"); 

      //Apply style to Individual Cells 
      grdExport.HeaderRow.Cells[0].Style.Add("background-color", "green"); 

      grdExport.HeaderRow.Cells[1].Style.Add("background-color", "green"); 

      grdExport.HeaderRow.Cells[2].Style.Add("background-color", "green"); 

      grdExport.HeaderRow.Cells[3].Style.Add("background-color", "green"); 

      grdExport.HeaderRow.Cells[4].Style.Add("background-color", "green"); 

      for (int i = 0; i < grdExport.Rows.Count; i++) 
      { 
       GridViewRow row = grdExport.Rows; 

       //Change Color back to white 
       row.BackColor = System.Drawing.Color.White; 

       //Apply text style to each Row 
       row.Attributes.Add("class", "textmode"); 

       //Apply style to Individual Cells of Alternating Row 
       if (i % 2 != 0) 
       { 
        row.Cells[0].Style.Add("background-color", "#C2D69B"); 
        row.Cells[1].Style.Add("background-color", "#C2D69B"); 
        row.Cells[2].Style.Add("background-color", "#C2D69B"); 
        row.Cells[3].Style.Add("background-color", "#C2D69B"); 
        row.Cells[4].Style.Add("background-color", "#C2D69B"); 
       } 

      } 
      grdExport.RenderControl(hw); 
      //style to format numbers to string 
      string style = @"<style> .textmode { mso-number-format:\@; } </style>"; 
      Response.Write(style); 
      Response.Output.Write(sw.ToString()); 
      Response.Flush(); 
      Response.End(); 
     } 

Answer 5

我與導出到Excel試了，看來你首先需要創建一個使用部分Excel = using Microsoft.Office.Interop.Excel，當u點擊按鈕，只需要創建一個Excel類有工作簿和工作表屬性，然後使用Gridview.Row[].cell[].Text.的gridview屬性，你可以動態地將每個值在gridview中存儲到工作表中，然後將其寫入到FILE ....