Move checkboxlist from one groupbox to another groupbox for windows form using c# -

this form created using windows application under menu1 have submenus on click of submenu have display checkboxlist in groupbox on click of checkbox , click of move button list of command should displayed on other groupbox , have buttons "delete" , "clear" on click of delete button selected command should deleted list , click of clear button list command displayed should cleared groupbox , want display number selected checkboxlist in message box windows form using c#

can any1 me on this.. please provide me code aslo....

        regards,          sweety 

let's have [chklist1 : first checklistbox] , [lstbox1 : destination]
btnadd, btndel, btnclear

    private void btnadd_click(object sender, eventargs e)     {         foreach (var item in chklist1.selecteditems)         {             if (!lstbox1.items.contains(item))                 lstbox1.items.add(item);         }     }      private void btndel_click(object sender, eventargs e)     {         foreach (var item in lstbox1.selecteditems)         {             lstbox1.items.remove(item);         }     }      private void btnclear_click(object sender, eventargs e)     {         lstbox1.items.clear();         //if want hide lstbox you'll write         //lstbox1.visible = true;     }