c# - Grid View - Binding Data with Data Source at Button Click But Grid is not appearing -

i have gridview in updatepanel . on button click event binding data grid view. data being binded grid not showing.

 protected void page_load(object sender, eventargs e)     {         if (!ispostback)         {            binddata();         }     }  protected void binddata()          {                     // dv data view have rows , columns                     gridview1.datasource = dv;                     gridview1.databind();                     updatepanel.update();                 }         } 

on button click event :-

protected void btnupdateextensions_click(object sender, eventargs e)         {            // dv data view have data columns , rows         gridview1.datasource = dv;         gridview1.databind();                 updatepanel.update();               } 

at page load binding data ad showing gridview @ button click event not showing gridview while data source same source.

your button inside of updatepanel call

<asp:updatepanel id="updatepanel1" runat="server"> button , gridview </asp:updatepanel   protected void btnupdateextensions_click(object sender, eventargs e)         {             binddata();         } 

no need write updatepanel.update();