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将datagrid数据导入到excel(转载)

2006-05-22 13:55 483 查看
前几天要做一个将datagrid数据倒出到excel的程序,从网上考了一点代码,解决了这个问题

private void SaveResult_Click(object sender, EventArgs e)
  {
   try
   {
    Response.Clear();
    Response.Buffer= true;
    Response.Charset="GB2312";
    Response.AppendHeader("Content-Disposition","attachment;filename=FileName.xls");
    Response.ContentEncoding = Encoding.GetEncoding("GB2312");
    //设置输出流为简体中文
    Response.ContentType = "application/ms-excel";
    //设置输出文件类型为excel文件。
    this.EnableViewState = false;
    CultureInfo myCItrad = new CultureInfo("ZH-CN",true);
    StringWriter oStringWriter = new StringWriter(myCItrad);
    HtmlTextWriter oHtmlTextWriter = new HtmlTextWriter(oStringWriter);

    dgMqcLog.PagerStyle.Visible = false;
    this.ClearControls(dgMqcLog);
    dgMqcLog.RenderControl(oHtmlTextWriter);
    Response.Write(oStringWriter.ToString());
    Response.End();

   }
   catch(Exception ex)
   {
    Console.WriteLine(ex.Message);
   }   
  }
  

后来发现,如果datagrid加了分页和排序功能,就没法正常倒出了,没办法,又去网上搜索,有为大哥说加上下面的代码可以,我也没完全弄清楚,不过还是很奏效的.相信对大家有点用

private void ClearControls(Control control)
  {
           for(int i=control.Controls.Count -1; i>=0; i--)
           {
              ClearControls(control.Controls[i]);
           }

           if(!(control is TableCell))
           {
              if(control.GetType().GetProperty("SelectedItem") != null)
              {
                  LiteralControl literal = new LiteralControl();
                  control.Parent.Controls.Add(literal);
                  try
                  {
                     literal.Text = (string)control.GetType().GetProperty("SelectedItem").GetValue(control,null);
                  }
                  catch
                   {
      }

                control.Parent.Controls.Remove(control);
                }
                else if(control.GetType().GetProperty("Text") != null)
                {
                    LiteralControl literal = new LiteralControl();  
                    control.Parent.Controls.Add(literal);
      literal.Text = (string)control.GetType().GetProperty("Text").GetValue(control,null);
                    control.Parent.Controls.Remove(control);
                }
     }

   return;

  }
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