DataGrid数据导出到Excel

网上最常见的导出代码,这个方法的优点是简单.但是缺点就是不能格式化.
如果datagrid中有linkbutton列,导出程序就会报错
类型“DataGridLinkButton”的控件“DataGrid1__ctl2__ctl0”必须放在具有 runat=server 的窗体标记内。纠正这个错误的方法就是对datagrid进行重新绑定,当然在重新绑定之前最好设置参数,这样查询的时候是LinkButton列,导出的时候是普通列或不生成该列.
我实现的方法,修改导出函数如下:

Session[ " print " ] = " 1 " ;


SetBind(); // 重新绑定datagrid
Session.Remove( " print " ); // 注意:清理session的部分不能写在DataGrid1_ItemDataBound中
                         // 因为DataGrid1_ItemDataBound是一行一行绑的.如果写在里面就
                         // 表示绑定了第一行,等第二行的时候还是会绑定LinkButton.

Response.Clear(); 
Response.Buffer =   true ; 
Response.Charset = " GB2312 " ;    
Response.AppendHeader( " Content-Disposition " , " attachment;filename= "   + HttpUtility.UrlEncode(FileName,Encoding.UTF8).ToString());
Response.ContentEncoding = System.Text.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 .DataGrid1.Page.EnableViewState  = false ;
System.Globalization.CultureInfo myCItrad  =   new  System.Globalization.CultureInfo( " ZH-CN " , true );
System.IO.StringWriter oStringWriter  =   new  System.IO.StringWriter(myCItrad); 
System.Web.UI.HtmlTextWriter oHtmlTextWriter  =   new  System.Web.UI.HtmlTextWriter(oStringWriter);
this .DataGrid1.RenderControl(oHtmlTextWriter); 
Response.Write(oStringWriter.ToString());
Response.End();

 1  private   void  DataGrid1_ItemDataBound( object  sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
 2          {    
 3               if (Session[ " print " ]  != null )
 4              {
 5                   if (Session[ " print " ].ToString() == " 1 " )
 6                  {
 7                      e.Item.Cells[ 0 ].Visible  = false ;
 8                      e.Item.Cells[ 1 ].Visible  = false ;
 9                      e.Item.Cells[ 2 ].Visible  = false ;                    
10                      e.Item.Cells[ 12 ].Visible   = false ;                    
11                  }        
12              }
13          }