export gridview to excel in asp.net

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Hi,
For Exporting grid view to excel file i use following code

C#

Response.Clear();
Response.Buffer = true;
Response.AddHeader("content-disposition","attachment;filename=g.xls");
Response.Charset = "";
Response.ContentType = "application/vnd.ms-excel";
StringWriter sw = new StringWriter();
HtmlTextWriter ht = new HtmlTextWriter(sw);
gvDisplay.AllowPaging = false;
gvDisplay.DataBind();
gvDisplay.RenderControl(ht);
Response.Output.Write(sw.ToString());
Response.Flush();
Response.End();

but following error occurred when using Master page on line

C#

GridView1.RenderControl(ht);

Control 'cntPlcHolder_gvDisplay 'GridView' must be placed inside a form tag with runat=server.

pls help me ~~fast~~

Posted 10-Feb-12 19:14pm

Nilesh Patil Kolhapur

Updated 10-Feb-12 20:07pm

Michel [mjbohn]

v2

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2 solutions

Solution 2

Refer below link

http://www.c-sharpcorner.com/UploadFile/DipalChoksi/exportxl_asp2_dc11032006003657AM/exportxl_asp2_dc.aspx[^]

Posted 25-May-12 0:55am

Sathisha N.M

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Nilesh Patil Kolhapur · Accepted Answer · 2012-02-10T20:16:00

Solution 1

just write following method

C#

public override void VerifyRenderingInServerForm(Control control)
    {

    }

Posted 10-Feb-12 20:16pm

Nilesh Patil Kolhapur

Comments

mariamg 3-Apr-12 8:12am

Hi,
I Write this above Code
but following error
[System.Threading.ThreadAbortException] = {Unable to evaluate expression because the code is optimized or a native frame is on top of the call stack.}
then
I deleted a Line of Code "Response.End();"
And
Added HttpContext.Current.ApplicationInstance.CompleteRequest();
It is Passed without error but it is not working

Nilesh Patil Kolhapur 7-Apr-12 6:31am

it works properly for me

SURESH MOGUDALA 23-Aug-14 5:36am

Where the gridview located within the Update Panel or Outside the Update Panel ?

If within the Update Panel You need to add Trigger...
like

<asp:UpdatePanel ID="GridView1" runat="server" >

//gridview details

<Triggers>
//Button Id (means ExportBtn)
<asp:PostBackTrigger ControlID="ButtonId" />
</Triggers>