wendazhou

/// <summary>
/// Provides helpers to manually toggle validation errors.
/// </summary>
public static class ManualValidation
{
    // this dummy attached property is used as a source
    // of the binding.
    static readonly DependencyProperty DummyProperty =
            DependencyProperty.RegisterAttached("DummyProperty", typeof(object), typeof(ManualValidation), new PropertyMetadata(null));