绑定WindowsFormsHost子属性

Question

我正在创建一个MVVM应用程序。

在我模式我需要手柄到System.Windows.Forms.Panel正在显示在查看。我的想法是创建这面板中视图模型，然后从一个侧面 - 查看绑定到它，在另一边，通过它句柄模式。

我有一个WindowsFormsHost控件：

<Page x:Class="Test.Views.RenderPage" 
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
     xmlns:WinForms="clr-namespace:System.Windows.Forms;assembly=System.Windows.Forms" 
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
     xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
     xmlns:local="clr-namespace:Test.Views" 
     mc:Ignorable="d" 
     d:DesignHeight="800" d:DesignWidth="1200" 
     Title="Page1"> 

    <DockPanel> 
     <WindowsFormsHost x:Name="winformsHost" Child="{Binding RenderPanel}"/> 
    </DockPanel> 
</Page> 

而且我想绑定它的子属性与视图模型提供我RenderPanel

public ObservableObject<System.Windows.Forms.Panel> RenderPanel { get; private set; } 

public VideoRecorderViewModel() 
{ 
    RenderPanel = new System.Windows.Forms.Panel(); //Bind it here 
    var model = new Model (RenderPanel.Handle); pass it to the model 
} 

不过，我得到一个错误说：

System.Windows.Markup.XamlParseException: 
A 'Binding' cannot be set on the 'Child' property of type 'WindowsFormsHost'. 
A 'Binding' can only be set on a DependencyProperty of a DependencyObject. 

如何解决这个问题？

Answer 1

错误是不言自明的。你不能绑定到属于对象，它是一个WPF WindowsFormsHost控件的子属性

你可以创建一个类的一些附加属性来实现这一目标： Workaround for inability to bind to a property that belongs to a WindowsFormsHost Child object in C#/XAML app?

或者你可以用它包一个ContentControl喜欢这里：Created Bindable WindowsFormsHost, but child update is not being reflected to control