public Window1()
{
InitializeComponent();
FreezableCollection <SolidColorBrush> collection = new FreezableCollection <SolidColorBrush>();
collection.Changed += collection_Changed;
SolidColorBrush brush = new SolidColorBrush(Colors.Red);
collection.Add(brush);
brush.Color = Colors.Blue;
}
/// <inheritdoc/>
protected override object ExtendBinding(IServiceProvider serviceProvider, DependencyObject?targetObject, DependencyProperty targetProperty)
{
if (targetObject == null)
{
return(this);
}
UpdateBindingMode(targetObject, targetProperty);
var binder = new SteppedBinder(targetObject, targetProperty, ActualBinding, SteppingDuration);
FreezableCollection <TransientBinder> binders = TransientBinder.GetBinders(targetObject);
binders.Add(binder);
return(targetObject.GetValue(targetProperty));
}
public void FreezableCollectionBasicTest()
{
int resources1ChangedCount = 0;
object resourceValue;
Freezable freezable1 = new Freezable();
freezable1.ResourcesChanged += (sender, e) => resources1ChangedCount++;
FreezableCollection <Freezable> freezableCollection = new FreezableCollection <Freezable> {
freezable1
};
FrameworkElement element = new FrameworkElement();
element.DataContext = "data-context";
element.Resources = new ResourceDictionary();
element.Resources.Add("key1", "value1");
Assert.IsNull(freezable1.GetValue(FrameworkElement.DataContextProperty));
Assert.IsFalse(freezable1.TryGetResource("key1", out resourceValue));
element.SetValue(ValueProperty, freezableCollection);
Assert.AreEqual("data-context", freezable1.GetValue(FrameworkElement.DataContextProperty));
Assert.AreEqual(2, resources1ChangedCount);
Assert.IsTrue(freezable1.TryGetResource("key1", out resourceValue));
Assert.AreEqual("value1", resourceValue);
Freezable freezable2 = new Freezable();
freezableCollection.Add(freezable2);
Assert.AreEqual("data-context", freezable2.GetValue(FrameworkElement.DataContextProperty));
Assert.IsTrue(freezable2.TryGetResource("key1", out resourceValue));
Assert.AreEqual("value1", resourceValue);
freezableCollection.Clear();
Assert.AreNotEqual("data-context", freezable1.GetValue(FrameworkElement.DataContextProperty));
Assert.AreNotEqual("data-context", freezable2.GetValue(FrameworkElement.DataContextProperty));
Assert.AreEqual(3, resources1ChangedCount);
Assert.IsFalse(freezable1.TryGetResource("key1", out resourceValue));
Assert.IsFalse(freezable2.TryGetResource("key1", out resourceValue));
}
public void FreezableCollectionBasicTest()
{
int resources1ChangedCount = 0;
object resourceValue;
Freezable freezable1 = new Freezable();
freezable1.ResourcesChanged += (sender, e) => resources1ChangedCount++;
FreezableCollection<Freezable> freezableCollection = new FreezableCollection<Freezable> { freezable1 };
FrameworkElement element = new FrameworkElement();
element.DataContext = "data-context";
element.Resources = new ResourceDictionary();
element.Resources.Add("key1", "value1");
Assert.IsNull(freezable1.GetValue(FrameworkElement.DataContextProperty));
Assert.IsFalse(freezable1.TryGetResource("key1", out resourceValue));
element.SetValue(ValueProperty, freezableCollection);
Assert.AreEqual("data-context", freezable1.GetValue(FrameworkElement.DataContextProperty));
Assert.AreEqual(2, resources1ChangedCount);
Assert.IsTrue(freezable1.TryGetResource("key1", out resourceValue));
Assert.AreEqual("value1", resourceValue);
Freezable freezable2 = new Freezable();
freezableCollection.Add(freezable2);
Assert.AreEqual("data-context", freezable2.GetValue(FrameworkElement.DataContextProperty));
Assert.IsTrue(freezable2.TryGetResource("key1", out resourceValue));
Assert.AreEqual("value1", resourceValue);
freezableCollection.Clear();
Assert.AreNotEqual("data-context", freezable1.GetValue(FrameworkElement.DataContextProperty));
Assert.AreNotEqual("data-context", freezable2.GetValue(FrameworkElement.DataContextProperty));
Assert.AreEqual(3, resources1ChangedCount);
Assert.IsFalse(freezable1.TryGetResource("key1", out resourceValue));
Assert.IsFalse(freezable2.TryGetResource("key1", out resourceValue));
}
public void FreezableCollectionBasicTest()
{
int resources1ChangedCount = 0;
object resourceValue;
Freezable freezable1 = new Freezable();
freezable1.ResourcesChanged += (sender, e) => resources1ChangedCount++;
FreezableCollection <Freezable> freezableCollection = new FreezableCollection <Freezable> {
freezable1
};
FrameworkElement element = new FrameworkElement();
element.Resources = new ResourceDictionary();
element.Resources.Add("key1", "value1");
Assert.IsFalse(freezable1.TryGetResource("key1", out resourceValue));
freezableCollection.TrySetContextParent(element);
Assert.AreEqual(1, resources1ChangedCount);
Assert.IsTrue(freezable1.TryGetResource("key1", out resourceValue));
Assert.AreEqual("value1", resourceValue);
Freezable freezable2 = new Freezable();
freezableCollection.Add(freezable2);
Assert.IsTrue(freezable2.TryGetResource("key1", out resourceValue));
Assert.AreEqual("value1", resourceValue);
freezableCollection.Clear();
Assert.AreEqual(2, resources1ChangedCount);
Assert.IsFalse(freezable1.TryGetResource("key1", out resourceValue));
Assert.IsFalse(freezable2.TryGetResource("key1", out resourceValue));
}
public void Add(ApplicationJumpItem item)
{
implementation.AddItem(ApplicationJumpItem.GetItemInfo(item));
SourceItems.Add(item);
}