public void grdItemBreakDown_DeleteCommand(object sender, DataGridCommandEventArgs e)
{
String DetailId = "";
DetailId = grdItemBreakDown.DataKeys[Convert.ToInt32(e.Item.ItemIndex)].ToString();
contingency _wc = new contingency();
_wc.DeleteProjectItemBreakdown(Convert.ToInt32(DetailId));
//BindItemBreakDown(Convert.ToInt32(ViewState["EstNum"].ToString()));
Server.Transfer("whitfield_estimation.aspx?EstNum=" + ViewState["EstNum"].ToString());
}