導出網格在SharePoint 2010中的ascx頁上擅長

Question

我想導出網格以在SharePoint Web部件解決方案中的ascx頁上擅長。它拋出以下錯誤

Control 'ctl00_ctl24_g_20574c20_e209_4887_ab02_83ee55a79fc5_ctl00_gdReport' of type 'GridView' must be placed inside a form tag with runat=server. 

爲了避免這種錯誤，我必須用下面的方法，但隨後編譯器會引發錯誤說「沒有找到合適的方法來替代」

public override void VerifyRenderingInServerForm(Control control) { } 

全碼：

protected void btnExcelExport_Click(object sender, EventArgs e) 
{ 
    PrepareForExport(gdSharedReport); 
    ExportToExcel(); 
} 

private void ExportToExcel() 
{ 
    Response.Clear(); 
    Response.AddHeader("content-disposition", "attachment;filename=Report.xls"); 
    Response.Charset = String.Empty; 
    Response.ContentType = "application/ms-excel"; 
    StringWriter stringWriter = new StringWriter(); 
    HtmlTextWriter HtmlTextWriter = new HtmlTextWriter(stringWriter); 
    gdSharedReport.RenderControl(HtmlTextWriter); 
    Response.Write(stringWriter.ToString()); 
    Response.End(); 
} 

private void PrepareForExport(Control ctrl) 
{ 
    //iterate through all the grid controls 
    foreach (Control childControl in ctrl.Controls) 
    { 
     //if the control type is link button, remove it 
     //from the collection 
     if (childControl.GetType() == typeof(LinkButton)) 
     { 
     ctrl.Controls.Remove(childControl); 
     } 
     //if the child control is not empty, repeat the process 
     // for all its controls 
     else if (childControl.HasControls()) 
     { 
     PrepareForExport(childControl); 
     } 
    } 
} 

Answer 1

你的文章說：

爲了避免這個錯誤，我必須使用下面的方法OD但隨後編譯器會引發錯誤說「沒有找到合適的方法來替代」

public override void VerifyRenderingInServerForm(Control control) { } 

所以，我的猜測是，你需要將覆蓋到這個VerifyRenderingInServerForm方法。