I am very sorry for the delay. It worked fine when the converter was set, it display the blank and the format before the control gets focus.

Issue now is once date is selected it gets binded to a property in my ViewModel. When I clear the value on clicking a button by setting date property to nothing. The value appears to be on the date, but when i click the control it disappear and again the date appears after lossing the focus.

Now did not had time to debug this issue, I will update after this week end. Thanks

I am sorry, I was on leave for 2 days, I will get back to you today

Hi

Is this issue resolved ? Do you have any further questions regarding this ? 

Hi

In additon to what Andrew has said.

If in case you are using EditModeStarted/Ended for updating the view model, then you have two options:

* You can use some other mechanism other than EditModeStarted/Ended events, like focus change (for this you can bind to IsFocusWithin property of the ValueEditor to know when the user leaves the focus), to handle updating of the view model.

* Leave the IsAlwaysInEditMode set to false and instead specify a ValueToDisplayTextConverter that will show the prompt characters when not in edit mode. Here’s the code for ValueToDisplayTextConverter:

    public class MyMaskDisplayTextConverter : IValueConverter

    {

        private static IValueConverter g_baseDisplayTextConverter;

        static MyMaskDisplayTextConverter( )

        {

            XamMaskedEditor tmpEditor = new XamMaskedEditor( );

            g_baseDisplayTextConverter = tmpEditor.ValueToDisplayTextConverterResolved;

        }

        public object Convert( object value, Type targetType, object parameter, System.Globalization.CultureInfo culture )

        {

            object val = g_baseDisplayTextConverter.Convert( value, targetType, parameter, culture );

            XamMaskedEditor maskEditor = parameter as XamMaskedEditor;

            if ( null != maskEditor )

            {

                if ( null == val || val is string && 0 == ( (string)val ).Length )

                    val = maskEditor.GetText( MaskMode.IncludeBoth );

            }

            return val;

        }

        public object ConvertBack( object value, Type targetType, object parameter, System.Globalization.CultureInfo culture )

        {

            return g_baseDisplayTextConverter.ConvertBack( value, targetType, parameter, culture );

        }

    }