Question

When the Login Control is used with MasterPages, the ValidationSummary does not show the validation messages. I have set the ValidationGroup property to the ID of the Login control.

I tried using the approach at Link
with no luck.

Thanks

Answer 1

Try

ValidationSummary1.ValidationGroup = Login1.ClientID;
or
ValidationSummary1.ValidationGroup = Login1.UniqueID;

Please note that if you choose to customize the Layout Template of this control in your aspx page, you should just manually set the validation group of the validators yourself.

Such as:

<asp:RequiredFieldValidator ID="UserNameRequired" ValidationGroup="Login1" />

and in the code-behind:

protected void Page_Load( object sender, EventArgs e )
{
    ValidationSummary1.ValidationGroup = "Login1";
}