private bool isExist(string CustomerName, double ID)
{
DataTable d = _NguoidungDAL.GetTenNguoiDungDynamic(" Ten_Dangnhap=N'" + CustomerName + "' and nguoitao=" + _user.UserID.ToString() + " and Ma_Nguoidung<>" + ID.ToString(), null).Tables[0];
if (d.Rows.Count == 0)
{
return(false);
}
else
{
return(true);
}
}