Dynamically create ContextMenu in Silverlight 5 -

i have started use silverlight few days.

currently have generated panel dynamically in canvas. each panel have shared mouseleftbuttonup event display contextmenu.

the problem when click on first panel, contextmenu able show when click on second panel, first contextmenu shown instead of second. second panel show contextmenu when click time on second panel.

below code generate panel , context menu:

void generatepanel() {     stackpanel panel = new stackpanel();      panel.mouseleftbuttonup += panel_mouseleftbuttonup;      canvas.children.add(panel) }  void panel_mouseleftbuttonup(object sender, mousebuttoneventargs e) {     e.handled = true;      contextmenu menu = new contextmenu();     menu.isopen = true; } 

hopefully problem clear enough. there way solve problem? or if there event fired when menu hidden, can make sure previous context menu disposed or cleared?

thanks.