public ToolboxServiceProxy(ISimpleToolboxService simpleToolboxService)
 {
     if (simpleToolboxService == null)
     {
         throw new ArgumentNullException("simpleToolboxService");
     }
     toolbox = simpleToolboxService;
 }
 public ToolboxServiceProxy(ISimpleToolboxService simpleToolboxService)
 {
     if (simpleToolboxService == null) throw new ArgumentNullException("simpleToolboxService");
     toolbox = simpleToolboxService;
 }