这似乎是使用XAML时，这是不可能的。自定义控件似乎是一个矫枉过正的时候我居然有我需要的所有控制，但只需将它们分组连同逻辑的一个小一点，并允许指定的内容。

It seems this is not possible when XAML is used. Custom controls seem to be a overkill when I actually have all the controls I need, but just need to group them together with a small bit of logic and allow named content.

在 JD的博客作为 mackenir暗示，似乎有***的折衷办法。扩展JD的解决办法，让仍然在XAML中定义的控件可能如下：

The solution on JD's blog as mackenir suggests, seems to have the best compromise. A way to extend JD's solution to allow controls to still be defined in XAML could be as follows:

    protected override void OnInitialized(EventArgs e)
    {
        base.OnInitialized(e);

        var grid = new Grid();
        var content = new ContentPresenter
                          {
                              Content = Content
                          };

        var userControl = new UserControlDefinedInXAML();
        userControl.aStackPanel.Children.Add(content);

        grid.Children.Add(userControl);
        Content = grid;           
    }

在我上面的例子我已经创建了一个名为UserControlDefinedInXAML用户控件是这样定义使用XAML任何普通用户控件。在我的UserControlDefinedInXAML我有一个叫StackPanel的在其中我希望我的命名内容出现aStackPanel。

In my example above I have created a user control called UserControlDefinedInXAML which is define like any normal user controls using XAML. In my UserControlDefinedInXAML I have a StackPanel called aStackPanel within which I want my named content to appear.