dependency-properties

I need to know what the procedure is for making a write-only dependency-property. I can see that the DependencyProperty class does not have a special "Register" method for write-only properties, but I have no idea whether the RegisterAttached method may apply to what I am trying to do. This property needs to be a dependency-property, rather than a simple CLR property. Internally, my class requires a PropertyChangedCallback on this property in order to remain stable. I know that write-only dependency-properties can be created, because it is stated quite clearly in: Pro C# 2008 and the .NET 3.5

I have a UserControl with a DependencyProperty. I set it's value in the host window using a data binding expression. However, it doesn't work as expected. Snippet from the user control's codebehind: public class ViewBase : UserControl { public static readonly DependencyProperty ViewModelProperty = DependencyProperty.Register( "ViewModel", typeof(ViewModelBase), typeof(ViewBase)); public ViewModelBase ViewModel { get { return GetValue(ViewModelProperty) as ViewModelBase; } set { SetValue(ViewModelProperty, value); } } } And from the XAML (note: CasingListView inherits from ViewBase):

I know multiple inheritence is out, but is there a way to create a wrapper for System.Windows.Point that can inherit from it but still implement bindable dependency properties? I'm trying to code so that for my XAML I can create staments like the following without issue: <custom:Point X="{Binding Width, ElementName=ParentControlName}" Y="{Binding Height, ElementName=ParentControlName}" /> It would make coding things like Polygons, Paths, LineSegments and other controls so much easier. The following code is provided as wishful thinking and I understand that it will in no way work, but this is

I have a WPF UserControl containing a custom DependencyProperty named MyDP. I want to bind this to a property on my ViewModel (which is injected as the UserControl's DataContext). I know one way to do it by setting the binding in the UserControl's declaration in the parent window's XAML as such: <Window x:Class="MyNamespace.Views.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:views="clr-namespace:MyNamespace.Views"> <StackPanel> <views:MyControl MyDP="{Binding Path=MyVMProperty, Mode=OneWayToSource}"/>

I just searched for a way to enable a child control while the parent control has IsEnabled = false . All answers that I have found up to now say that it is not possible - one has to enable the parent and disable the child controls except the ones that should still be enabled. However, by overriding the Metadata for the IsEnabledProperty in the App.xaml.cs file, I was able to change this default behavior: protected override void OnStartup(StartupEventArgs e) { UIElement.IsEnabledProperty.OverrideMetadata(typeof(FrameworkElement), new UIPropertyMetadata(true,IsEnabledChanged, CoerceIsEnabled));

I have implemented my own usercontrol based on listboxes. It has a dependency property with type of a collection. It works fine when I have only one instance of the usercontrol in a window, but if I have multiple instances I get problem that they share the collection dependency property. Below is a sample illustrating this. My user control called SimpleList: <UserControl x:Class="ItemsTest.SimpleList" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Name="_simpleList"> <StackPanel> <TextBlock Text="{Binding Path=Title,