public void grd1_UpdateCommand(object sender, DataGridCommandEventArgs e)
{
String DetailId = grd1.DataKeys[Convert.ToInt32(e.Item.ItemIndex)].ToString();
contingency _wc = new contingency();
_wc.UpdateSubTerms(Convert.ToInt32(DetailId), ((TextBox)(e.Item.FindControl("txtdesc"))).Text, ((RadioButtonList)(e.Item.FindControl("chkis_default"))).SelectedItem.Value);
grd1.EditItemIndex = -1;
grd1.ShowFooter = true;
DataSet dsGridResults = _wc.FetchSubTermsData(Convert.ToInt32(ViewState["cont_id"].ToString()));
PopulateDataGrid(dsGridResults, grd1);
}