I am setting a validation rule on a series of textboxes. I'd rather not create a new instance of my custom validation rule for each TextBox...
<Window.Resources>
<my:IsIntegerRule x:Key="IsIntegerRule"/>
</Window.Resources>
...
...
<TextBox>
<TextBox.Text>
<Binding XPath="@num" UpdateSourceTrigger="PropertyChanged" Mode="TwoWay">
<Binding.ValidationRules>
<-- WHAT IS THE EQUIVALENT OF WRITING: {StaticResource IsIntegerRule} here -->
</Binding.ValidationRules>
</Binding>
</TextBox.Text>
</TextBox>
Can anyone help?