detect when column header is clicked

[appdev]

how do you detect if the column header was clicked for sorting. beccause i want to capture that action so i could reload the page. i have the 

 

If Not ScriptManager1.IsInAsyncPostBack  this is why everytime i click on the column to sort it doesn't work. but then again why do i have to reload the data on every single click on the paging number. in the heirarchy grid, there was no reloading data at all. please help me thank you very much.

[Shinu]

Hi Duy,

You can check in the ItemCommand event whether the column header is clicked for sorting. Check for the CommandName as Sort which will be fired each and every time you click the column header for sorting.

CS:

 protected void RadGrid1_ItemCommand(object source, Telerik.Web.UI.GridCommandEventArgs e)
    {
        if (e.CommandName == "Sort")
        {

        }
    }

Thanks
Shinu.