Datagrid_pageindexchanged event is not firing

[Deepml]

can anyone help me.I get problems with DataGrids not firing their PageIndexChanged event.Here is code which i m trying: private void DataGrid1_OnPageIndexChanged(object sender,System.Web.UI.WebControls.DataGridPageChangedEventArgs e) { DataGrid1.CurrentPageIndex = e.NewPageIndex; DataGrid1.DataSource = oDv; DataGrid1.DataBind(); }