ProcessWatchImpl/Scone/ControlEnable.cs

using System.Windows;
using System.Windows.Controls;
using System.Windows.Interactivity;

namespace Toast.Scone
{
        //
        // Action のターゲット要素をその親以外にしたい場合、クラスを
        // TriggerAction の代わりに TargetedTriggerAction から拡張します
        //
        public class ControlEnable : TargetedTriggerAction<Control>
        {
                public ControlEnable()
                {
                        //no need to initialize.
                }

                protected override void Invoke(object o)
                {
                        RoutedPropertyChangedEventArgs<bool> e = o as RoutedPropertyChangedEventArgs<bool>;
                        
                        if (e == null)
                        {
                                throw new SeedCreate.InconsistencyException("argument type mismatch");
                        }

                        if (IsInvert)
                        {
                                Target.IsEnabled = !e.NewValue;
                        }
                        else
                        {
                                Target.IsEnabled = e.NewValue;
                        }
                }

                public readonly static DependencyProperty IsInvertProperty =
                        DependencyProperty.Register("IsInvert", typeof(bool), typeof(ControlEnable),
                        new UIPropertyMetadata(false));

                public bool IsInvert
                {
                        get
                        {
                                return (bool)GetValue(IsInvertProperty);
                        }
                        set
                        {
                                SetValue(IsInvertProperty, value);
                        }
                }
        }
}