相关疑难解决方法(0)

我有一个用户控件,我MainWindow在运行时加载.我无法从包含窗口获取句柄UserControl.

我试过了this.Parent,但它总是空的.有谁知道如何从WPF中的用户控件获取包含窗口的句柄？

以下是控件的加载方式:

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);
    } …

MainPage.xaml

<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
    <Grid x:Name="GridA">
        <Grid x:Name="GridB"/>
    </Grid>
</Grid>

有可能从中得到GridB父母GridB

这就是我想要做的

//Null
Panel parent1 = GridB.Parent as Panel;

//Null
Panel parent2 = VisualTreeHelper.GetParent(GridB) as Panel;

所有这些都返回null.

任何的想法？