DotNet Snippets^1.0

Let's say we have a gridview within an UpdatePanel. The GridView throws some command arguments, ie Edit, Delete, or a Custom LinkButton in a template field with it's CommandArgument set.

When the GridView's command arguments are fired, only the things in that UpdatePanel will get updated, nothing else. So if we want to intercept that call and for example refresh another update panel we would do the following:

Your Gridview with it's command arguments goes in here...

Now define the OnLoad function for the updatepanel.

protected void UpdatePanelList_Load(object sender, EventArgs e)
{
   if (String.IsNullOrEmpty(Request.Params.Get("__EVENTARGUMENT")) == false)
   {
      // We are gonna pull the commandargument that is coming in as an eventargument from the GV
      int itemId = 0;
      Int32.TryParse(Request.Params.Get("__EVENTARGUMENT"), out itemId);
      // Now we can execute something with that code, or update a different update panel.
      LoadSomething(itemId);
   }
}