RadGridView - Can't Clear Out Row Validation Errors

[Jay]

I am using the RadGridView control in an MVVM (Light) application. I added the following EventToCommandBehaviors to initiate row validation when leaving the selected row:

<telerik:EventBinding EventName="RowValidating" Command="{Binding ValidateCommand}" PassEventArgsToCommand="True"/>

<telerik:EventBinding EventName="RowEditEnded" Command="{Binding SaveCommand}" PassEventArgsToCommand="True"/>

 

Here's the method and helper method that gets called and works like it should to add the error:

        private void ExecuteValidate(GridViewRowValidatingEventArgs eventArgs)
        {
            var employee = eventArgs.Row.DataContext as Employee;
            if (employee?.RecId == (int)RecEnum.CertainState && employee.OtherRecId == null)
            {
                var validationResult = new GridViewCellValidationResult
                {
                    PropertyName = "ColumnUniqueName",
                    ErrorMessage = "Must enter a OtherRecId when RecId is set to CertainState"
                };
                eventArgs.ValidationResults.Add(validationResult);
            }

            if (eventArgs.ValidationResults.Count > 0)
            {
                eventArgs.IsValid = false;
            }
        }

And finally, following the instructions of removing the UserDefinedErrors, I add the following line in the RowEditEnded event:

            eventArgs.UserDefinedErrors.Clear();

 

If I fix the error, the row is saved, but the mouseover error message remains even though there are no errors. I followed your directions by adding the eventArgs.UserDefinedErrors.Clear(), but this didn't help.

Does anyone have any workarounds or must this bug be fixed?

Thanks for your help.

[Stefan Nenchev]

Hello Jay,

I tried reproducing the issue you are experiencing but was not able to observe the undesired behavior. Would it be possible for you to provide me with a sample project that reflects your setup? I have created a sample from my end and I have attached it to my reply. You can review it and modify it so I can have a more detailed look and investigate the issue further.

Regards,
Stefan Nenchev
Telerik

[Ian]

I get the same problem with my own app and with the sample app here.

Can see the errors in UserDefinedErrors and clear them. 

Shows as 0 items.

Error's still show on grid tooltips.

Is there a fix yet please?

[Dilyan Traykov]

Hello Ian,

The issue you're referring to has been fixed in the latest version of the controls. Could you please try updating to version 2016.2.503 and see if the problem persists?

Regards,
Dilyan Traykov
Telerik