WPF用户控件父 [英] WPF User Control Parent

问题描述

我有我加载到主窗口在运行时，用户的控制。我不能让包含窗口从用户控件上的手柄。

我已经试过this.Parent，但它总是空。有谁知道如何从一个WPF用户控件得到一个处理包含窗口？

下面是控制如何加载：

 私人无效XMLLogViewer_MenuItem_Click（对象发件人，RoutedEventArgs E）
{
    菜单项应用=发件人的菜单项;
    字符串参数= application.CommandParameter为字符串;
    字符串控件名称=参数;
    如果（uxPanel.Children.Count == 0）
    {
    System.Runtime.Remoting.ObjectHandle例如= Activator.CreateInstance（Assembly.GetExecutingAssembly（）全名，控件名称。）;
    用户控件控制= instance.Unwrap（）作为用户控件;
    this.LoadControl（控制）;
    }
}

私人无效LoadControl（用户控件的控件）
{
    如果（uxPanel.Children.Count大于0）
    {
    的foreach（在uxPanel.Children的UIElement CTRL）
    {
    如果（ctrl.GetType（）！= control.GetType（））
    {
    this.SetControl（控制）;
    }
    }
    }
    其他
    {
    this.SetControl（控制）;
    }
}

私人无效SetControl（用户控件的控件）
{
    control.Width = uxPanel.Width;
    control.Height = uxPanel.Height;
    uxPanel.Children.Add（控制）;
}
 

解决方案

尝试使用以下

 窗口parentWindow = Window.GetWindow（userControlRefernce）;
 

该GetWindow方法会走的VisualTree为你找到承载您的控件的窗口。

I have a user control that I load into a main window at runtime. I cannot get a handle on the containing window from the user control.

I have tried this.Parent, but it's always null. Does anyone know how to get a handle to the containing window from a user control in WPF?

Here is how the control is loaded:

private void XMLLogViewer_MenuItem_Click(object sender, RoutedEventArgs e)
{
    MenuItem application = sender as MenuItem;
    string parameter = application.CommandParameter as string;
    string controlName = parameter;
    if (uxPanel.Children.Count == 0)
    {
    	System.Runtime.Remoting.ObjectHandle instance = Activator.CreateInstance(Assembly.GetExecutingAssembly().FullName, controlName);
    	UserControl control = instance.Unwrap() as UserControl;
    	this.LoadControl(control);
    }
}

private void LoadControl(UserControl control)
{
    if (uxPanel.Children.Count > 0)
    {
    	foreach (UIElement ctrl in uxPanel.Children)
    	{
    		if (ctrl.GetType() != control.GetType())
    		{
    			this.SetControl(control);
    		}
    	}
    }
    else
    {
    	this.SetControl(control);
    }
}

private void SetControl(UserControl control)
{
    control.Width = uxPanel.Width;
    control.Height = uxPanel.Height;
    uxPanel.Children.Add(control);
}

解决方案

Try using the following

Window parentWindow = Window.GetWindow(userControlRefernce);

The GetWindow method will walk the VisualTree for you and locate the window that is hosting your control.

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