Remove css from div on server side C# -

i have div tag has inline css visibility hidden

 <div id="secondgrid" runat="server" style="width:80%; margin-left:10%; visibility:hidden;"> //content </div> 

i have button in gridview, on click of want remove visibility css of above div

  protected void gridview1_rowcommand(object sender, gridviewcommandeventargs e)     {         if (e.commandname == "showcarmodels")         {             carbrandid = convert.toint32(e.commandargument.tostring());             bindgridview2(carbrandid);             secondgrid.style.remove("visibility");          }     } 

the div still appear hidden. can please me out.

you should use visible property. use html control @ server side can use visible property show or hide control.

secondgrid.visible = true; 

for above solution need change html markup follwing

<div id="secondgrid" runat="server" visible="false" style="width:80%; margin-left:10%;"> //content </div> 

but if want continue markup can remove style using htmltextwriterstyle

secondgrid.style.remove(htmltextwriterstyle.visibility);