将自定义属性绑定到上下文

Question

I like to bind a custom property (owner Window) to my datacontext. How to do these in xaml. I can not access on these property because my class is window and not MyView, its Window
<Window x:Class="MyNamespace.MyView"
By changing my xaml to MyView class i get some errors that my class needs a inheritance from window.

Codebehind:

DependencyProperty MyValueProperty, Property MyValue

Xaml: Bind MyValue to my datacontext.

I want these

If i try to change the class name inside xaml:

I get these error

Answer 1

您可以实例化<local:MyView xmlns:local="YourNameSpaceToMyView"这样的控件，从而可以使用DP

Answer 2

You can set your DataContext to the current instance of your window class like this:

<Window x:Class="MyNamespace.MyView" 
        DataContext="{Binding RelativeSource={RelativeSource self}}">

Then you can access the underlying properties easily.

To bind to your custom property, you can do something like this:

DataContext="{Binding RelativeSource={RelativeSource self}, Path=MyProperty}"