WPF-ValidationRule不是DependencyObject的解决方法

Question

What is the best solution for not being able to use data binding on a ValidationRule property since ValiationRule is not a DependencyObject?

Below is an example of what I would like to do. I want to be able to validate the text in the TextBox against some other DependencyProperty.

<TextBox Name="myTextBox">
    <TextBox.Text>
        <Binding Path="MySource" UpdateSourceTrigger="PropertyChanged">
            <base:EqualsRule Target="{Binding MyTarget}" />
        </Binding>
    </TextBox.Text>
</TextBox>

Answer 1

您可以使用Josh Smith的虚拟分支方法 。