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WPF Extensibility Hacks or WEX - Includes EventTrigger, ReactiveTrigger, InvokeMethodAction, InvokeCommandAction etc.

, 14 Jan 2010
A set of extensibility hacks for WPF. A few interesting triggers and actions, including EventTrigger, ReactiveTrigger, InvokeMethodAction, and InvokeCommandAction. Also allows invoking Triggers and Actions based on Conditions.
Wex.zip
Assemblies
Microsoft.Expression.Interactions.dll
System.ComponentModel.Composition.dll
System.CoreEx.dll
System.Interactive.dll
System.Reactive.dll
System.Windows.Interactivity.dll
WexEventTrigger
ClassDiagram1.cd
Wex.csproj.user
bin
Debug
WexEventTrigger.dll
WexEventTrigger.vshost.exe
WexEventTrigger.vshost.exe.manifest
Composition
Lib
Properties
Settings.settings
Reactive
WexEventTrigger.Demo
bin
Debug
WexEventTrigger.Demo.vshost.exe
WexEventTrigger.Demo.vshost.exe.manifest
Commands
Extensions
Properties
Settings.settings
Views
Demos
using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;

namespace Wex.Lib.Interactions
{
    /// <summary>
    /// A trigger action that targets an element
    /// </summary>
    public abstract class TargettedTriggerAction : WexTriggerAction
    {
        /// <summary>
        /// The type of the target
        /// </summary>
        public ContextTypeEnum TargetType
        {
            get { return (ContextTypeEnum)GetValue(TargetTypeProperty); }
            set { SetValue(TargetTypeProperty, value); }
        }

        // Using a DependencyProperty as the backing store for SourceType.  This enables animation, styling, binding, etc...
        public static readonly DependencyProperty TargetTypeProperty =
            DependencyProperty.Register("TargetType", typeof(ContextTypeEnum), typeof(TargettedTriggerAction), new PropertyMetadata(ContextTypeEnum.Model));


        /// <summary>
        /// Name of the element to target
        /// </summary>
        public string TargetName
        {
            get { return (string)GetValue(TargetNameProperty); }
            set { SetValue(TargetNameProperty, value); }
        }

        // Using a DependencyProperty as the backing store for TargetName.  This enables animation, styling, binding, etc...
        public static readonly DependencyProperty TargetNameProperty =
            DependencyProperty.Register("TargetName", typeof(string), typeof(TargettedTriggerAction), new PropertyMetadata("This"));


        /// <summary>
        /// Actual target of this trigger
        /// </summary>
        protected object Target
        {
            get { return (object)GetValue(TargetProperty); }
            set { SetValue(TargetProperty, value); }
        }

        // Using a DependencyProperty as the backing store for Source.  This enables animation, styling, binding, etc...
        public static readonly DependencyProperty TargetProperty =
            DependencyProperty.Register("Target", typeof(object), typeof(TargettedTriggerAction), new PropertyMetadata(null));


        /// <summary>
        /// Internally initialize the element
        /// </summary>
        internal override void InternalInitialize()
        {

            base.InternalInitialize();


            if (AssociatedObject != null && Target == null)
            {
                if (TargetType == ContextTypeEnum.Element)
                {
                    if (TargetName == "This" || string.IsNullOrEmpty(TargetName))
                    {
                        Target = AssociatedObject;
                    }
                    else
                        Target = (AssociatedObject as FrameworkElement).FindName(TargetName);
                }
                else if (TargetType == ContextTypeEnum.Model)
                {
                    Target = (AssociatedObject as FrameworkElement).DataContext;
                }

            }

        }


    }
}

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Web04 | 2.8.140821.2 | Last Updated 14 Jan 2010
Article Copyright 2010 by Anoop Madhusudanan
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