How to Export MultiPage DataGrid to Excel File

[Wael Nofal]

i exported the datagrid to excel file with this code:

private void ibtnExcel_Click(object sender,
System.Web.UI.ImageClickEventArgs e)
{
Response.Clear();
Response.Buffer= true;
Response.ContentType = "application/vnd.ms-excel";
Response.Charset = "";
this.EnableViewState = false;
System.IO.StringWriter oStringWriter = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter oHtmlTextWriter = new
System.Web.UI.HtmlTextWriter(oStringWriter);
ActiveRequestsGrid1.RenderControl(oHtmlTextWriter);
Response.Write(oStringWriter.ToString());
Response.End();
}
but i'm not able to export multiple pages in the datagrid once at time,
please reaply me.