private void gridViewTaiKhoan_ValidateRow(object sender, ValidateRowEventArgs e)
{
TaiKhoan objTaiKhoan = e.Row as TaiKhoan;
if (objTaiKhoan != null)
{
objTaiKhoan.AddValidationRuleHandler(RuleCheckDuplicate, "TenDangNhap");
if (objTaiKhoan.IsValid)
{
e.Valid = true;
}
else
{
XtraMessageBox.Show(objTaiKhoan.Error, "Thông báo", MessageBoxButtons.OK, MessageBoxIcon.Warning);
e.Valid = false;
}
}
}
