protected void grvTTHonNhan_InsertCommand(object sender, GridCommandEventArgs e)
{
GridEditableItem item = e.Item as GridEditableItem;
Hashtable values = new Hashtable();
item.ExtractValues(values);
TinhTrangHonNhan tt = new TinhTrangHonNhan();
tt.NgayTao = tt.NgayCapNhat = DateTime.Now;
tt.NguoiTao = tt.NguoiCapNhat = idNhanVien;
item.UpdateValues(tt);
_entities.AddToTinhTrangHonNhans(tt);
_entities.SaveChanges();
}