dynamically increasing image size using asp.net with c#

create two pages...

default.aspx , edit.aspx

in defaul.aspx take one imagebutton like

.cs onclick event:

protected void ImageButton1_Click(object sender, ImageClickEventArgs e)
   {
   if (ImageButton1.ToolTip == "Enlarge")
   {
   ImageButton1.Height = 400;
   ImageButton1.Width = 800;
   ImageButton1.ToolTip = "Edit";
   }
   else if (ImageButton1.ToolTip == "Edit")
   {
   Response.Redirect("edit.aspx");

   }
   }

this is one of the way according to me ... if this help you than plz mark my answer