With the Converter, it is not able to reproduce this, because when I clean the value from the XamNumericEditor, the converter returns Binding.DoNothing.

Alex.

Thank you for your responses to my ValueType/conversion questions, they have been helpful.

Were you able to try out/reproduce my clearing -> value not setting issue?

Thanks

The only thing that comes up in my mind is to use a Converter(IValueConverter) and check what the value is and manage this manually. However, you have to assign this manually next to the Binding Expression.

public class Converter1 : IValueConverter

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

        {

            int temp1;

            double temp2;

            if (value == null)

                return Binding.DoNothing;

            if (targetType == typeof(Int32))

                if(int.TryParse(value.ToString(),out temp1))

                    return temp1;

            if (targetType == typeof(Double))

                if(double.TryParse(value.ToString(),out temp2))

                    return temp2;

            return Binding.DoNothing;

        }

        #endregion

    }

...

Value="{Binding Integer,Converter={StaticResource conv}}" NullText="this is null text"

...

Alex.

Ahh, in my screens I have both double properties and int properties bound to XamNumericEditors so I don't think that this style will work for my case.  I was hoping that there might be a setting where the control could figure out the type on the fly for the conversions.

I tried using NullText="0" but this is what happens:  I type 111 into the editor and tab out of it.  I put a break point in the my int property's setter.  I go back to the XamNumericEditor and highlight all text and hit backspace to clear it and tab out of it.  "0" shows in the editor, so it looks the way I want, but my setter is never hit so my integer property still has the value 111.  Are you able to see this behavior as well?

You can create a style for the XamNumericEditor with no key, which will be automatically applied to all the XamNumericEditors like this:

<Style TargetType="{x:Type igEditors:XamNumericEditor}">
<Setter Property="ValueType" Value="{x:Type sys:Int32}"/>
</Style>

....

<igEditors:XamNumericEditor Value="{Binding Integer}" NullText="this is null text" Name="xamNumericEditor1">

...