How to show ContextMenu in custom class?

Question

I am learning wpf technology. I have created such custom class, which should react on mouse up event (should show popup menu)

public class CustomControl : UIElement
{
    protected override void OnMouseUp(MouseButtonEventArgs args)    
    {
         ContextMenu context_menu = new ContextMenu();
         // How to show context_menu at specific point?
    }
};

I don't know how to show created context menu at speficic position. It don't have specified Show method. UIElement don't have appropriated ContextMenu property

Edit: I am not using XAML (I don't want create dependency between source code and design)

Answer 1

Using WPF you would design a context menu in XAML usually. A brief tutorial of how to do that is this for example.

Basically you write your context menu within the respective control and use Command s or mouse events like Click to assign a specific behaviour.