[Solved] Displaying custom Validation messages on the Edit form

[Reid]

Hello all,

How can I emit a custom message on the Popup form when the Grid is set to Popup mode?  This is a case where one of a set of checkboxes (Roles) need to be selected for the model to be valid. 

I have implemented the IValidatableObject interface and the implemented method checks for the roles selection and using "Yield" returns the message if no roles are selected.  The view does not display anything other than the inline model fields.  Is there a way to display custom Validation messages (or any others for that matter) inside the Pop-up editor form?

One more if someone knows it, where can you modify the popup hint that displays the violation, that for me I now see with a black background?

Thanks,
Reid

[Petur Subev]

Hello Reid,

If your Grid is bound via Ajax you should use OnError client event to manually display the errors to the user.
Please check the attached project I created to show you a custom validation using the IClientValidatable interface.
I hope this helps.

Greetings,
Petur Subev
the Telerik team

[Reid]

Hello Petur,

Thanks for providing a great example.  I am getting a JS error, "e.modelstate" is undefined when I click the update button.

This scenerio is a UserControl (PayerUserModel.aspx) that supports the custom Edit Template for the row.  I am not sure where to place the JS, I assume in the parent template, in this case ManageUsers.aspx.  I put the JS there and get this error.

Can you suggest what might be going wrong?

Thanks,

Reid

[Petur Subev]

Hi Reid,

OnError is executed each time there is an error as the name suggest, so sometimes there can be another type of error (not a modelstate one). So you should check whether that modelState field exist.
i.e.

if (e.modelState && e.modelState.customError) {
    $(e.modelState.customError.errors).each(function () {
        $('#Personsform').prepend('<div class="field-validation-error">' + this + '</div>')
    });
}

I hope this helps. 

Greetings,
Petur Subev
the Telerik team