TextBoxInputMaskBehavior value Binding (Binding withouth the Mask)

[JackDjTom]

Hi,
my code looks like this:

<TextBox Text="{Binding Text, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}">
  <b:Interaction.Behaviors>
    <controlzex:TextBoxInputMaskBehavior InputMask="aaaa - aaaa" PromptChar="_" />
  </b:Interaction.Behaviors>
</TextBox>

The binding back to the property is including the InputMask. For example, when I enter 'xxxxyyyy', the Text property is set to 'xxxx - yyyy'. What I need, however, is just the value without the mask ('xxxxyyyy'). Can I accomplish that with the TextBoxInputMaskBehavior?

The Text property is basic string property:
public string Text { get; set; }