Exporting GridView to Excel

Posted: Thursday, December 22, 2005 in asp.net

In the project that Im current working, there was a requirement to export the data, which is in a GridView to Excel.

Normally I used the below method in old projects with DataGrid

Response.AddHeader(“content-disposition”, “attachment;filenameAlldata.xls”);
Response.Charset “”;
Response.ContentType “application/vnd.ms-excel”;
System.IO.StringWriter stringWrite new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter htmlWrite new HtmlTextWriter(stringWrite);

But changing the

To GridView

It gave an error saying
Control ‘ GVMain ‘ of type ‘GridView’ must be placed inside a form tag with runatserver.

Well after serching the solution for this I got the answer in ASP.NET Forums.
You need to put this code in your .aspx

public override void VerifyRenderingInServerForm(Control control)

this method Confirms that an HtmlForm control is rendered for the specified ASP.NET server control at run time.
Finally the export worked.


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