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[英]Export to Excel exports the whole webpage and not just the gridview(Sorting enabled)
[英]Exporting GridView to Excel exports the whole page
我正在将GridView导出到Excel文件中,但是当我打开文件时,首先会收到关于格式类型和扩展名不匹配的错误,并且当我打开它时,整个页面都被带到Excel文件中,而不仅仅是网格视图。
我没有使用更新面板。 我尝试了GridView内部和外部的按钮,并得到了相同的结果,因此似乎是隐藏在代码后面的东西,看起来像这样:
Response.Clear(); Response.Buffer = true; string filename = "GridViewExport_" + DateTime.Now.ToString() + ".xls"; Response.AddHeader("content-disposition", "attachment;filename=" + filename); Response.Charset = String.Empty; Response.ContentType = "application/vnd.ms-excel"; StringWriter sw = new StringWriter(); HtmlTextWriter hw = new HtmlTextWriter(sw); GridView3.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(); HttpContext.Current.ApplicationInstance.CompleteRequest();
您可以尝试以下方法:
void ExportDataSetToExcel(GridView grdData, string filename)
{
grdData.BorderStyle = BorderStyle.Solid;
grdData.BorderWidth = 1;
grdData.BackColor = Color.WhiteSmoke;
grdData.GridLines = GridLines.Both;
grdData.Font.Name = "Verdana";
grdData.Font.Size = FontUnit.XXSmall;
grdData.HeaderStyle.BackColor = Color.DimGray;
grdData.HeaderStyle.ForeColor = Color.White;
grdData.RowStyle.HorizontalAlign = HorizontalAlign.Left;
grdData.RowStyle.VerticalAlign = VerticalAlign.Top;
HttpResponse response = HttpContext.Current.Response;
response.Clear();
response.Charset = "";
response.ContentType = "application/vnd.ms-excel";
response.AddHeader("Content-Disposition", "attachment;filename=\"" + filename+ "\"");
using (var sw = new StringWriter())
{
using (var htw = new HtmlTextWriter(sw))
{
grdData.RenderControl(htw);
response.Write(sw.ToString());
response.End();
}
}
}
使用此代码:可以正常工作。
aspx代码::
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="default.aspx.cs" Debug ="true" enableEventValidation ="false" Inherits="default"%>
这是aspx代码:
protected void ConvertToExcel_Click(object sender, EventArgs e)
{
Response.ClearContent();
Response.Buffer = true;
Response.AddHeader("content-disposition", string.Format("attachment; filename={0}", "Report.xls"));
Response.ContentType = "application/ms-excel";
StringWriter sw = new StringWriter();
HtmlTextWriter htw = new HtmlTextWriter(sw);
GridView1.AllowPaging = false;
GridView1.DataBind();
GridView1.HeaderRow.Style.Add("background-color", "#FFFFFF");
for (int i = 0; i < GridView1.HeaderRow.Cells.Count; i++)
{
GridView1.HeaderRow.Cells[i].Style.Add("background-color", "#bfc2c7");
}
int j = 1;
foreach (GridViewRow gvrow in GridView1.Rows)
{
if (j <= GridView1.Rows.Count)
{
if (j % 2 != 0)
{
for (int k = 0; k < gvrow.Cells.Count; k++)
{
gvrow.Cells[k].Style.Add("background-color", "#EFF3FB");
}
}
}
j++;
}
GridView1.RenderControl(htw);
Response.Write(sw.ToString());
Response.End();
}
public override void VerifyRenderingInServerForm(Control control)
{
}
解决了 !!! 您的代码是Response.Flush()的唯一正确问题; 在代码中使用而不是Response.Flush(); 您应该使用Response.End();
下面是工作代码:
Response.Clear();
Response.Buffer = true;
string filename = "GridViewExport_" + DateTime.Now.ToString() + ".xls";
Response.AddHeader("content-disposition",
"attachment;filename=" + filename);
Response.Charset = String.Empty;
Response.ContentType = "application/vnd.ms-excel";
StringWriter sw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(sw);
GridView3.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.End();
// Response.Flush();
HttpContext.Current.ApplicationInstance.CompleteRequest();
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