add a panel to another panel on button event

[jrosh]

I have a simple wpf panel (user control) which shows a list of items in a panel.

I want to show it in the mouse right click event in side another panel(user control)

How can I do that,

this is wat i have tried

  protected override void OnMouseRightButtonDown(MouseButtonEventArgs e)
        {
            contextMenuPanel c = new contextMenuPanel();
            c.Open = true;
            c.Visibility = Visibility.Visible;
        }

contextmenupanel is a seperate wpf user control.
And i am trying to add it into a grid of another wpf user control named wall.

please help with with this,

And i am using rad controls also. When i add the menu directly it adds to the wallpanel. I used

<dock:RadPane x:Name="ContextMenu1"  Header="ContextMenu" Title="ContextMenu" CanUserClose="True">
            <Assembly:contextMenu x:Name="contextMenu" />
  </dock:RadPane>