如何在WPF自定义控件库上显示画布？

Question

I have a wpf custom control which draws stuff on a canvas. but i cant figure out how to display this canvas on the window. When i add this control to a host app, I want this canvas to fill that app's window. I have seen some tutorial which use template binding to display ui elements etc but i read that canvas doesnt have a template property or something... How can display this canvas that I am drawing on? thanks

 namespace WPFCustomControls { 

       public class MyCustomControl : Control { 
           private Canvas canvas = new Canvas();

          static MyCustomControl() { 
             DefaultStyleKeyProperty.OverrideMetadata(typeof(MyCustomControl), new
                FrameworkPropertyMetadata(typeof(MyCustomControl))); 
          } 

             public void drawOnCanvas()
              {
                 //draw stuff on canvas
              }
               public void displayCanvas()
              {
                 //display canvas on app window
              }

       } 
    } 

Answer 1

Instead of deriving from Control , you could derive from ContentControl which has a Content property.

For example:

public class MyCustomControl : ContentControl 
{ 
    private Canvas _canvas = new Canvas();

    public MyCustomControl()
    {
        this.Content = _canvas;
    }
} 

---

It's also possible to derive from Canvas directly.