public void OpenViewChildOnStart(string typeOfWin)
        {
            //find type of view model for this type of win
            Type typeViewModel = _dictKTypeWindowVTypeViewModelChild.
                                 FirstOrDefault(a => a.Key.ToString() == typeOfWin).Value;

            if (typeViewModel == null)
            {
                return;
            }


            //than find view model instance
            BaseViewModelChildWin viewMod = _dictKViewModelVView.FirstOrDefault(a => a.Key.GetType() == typeViewModel).Key;

            Type type = Type.GetType(typeOfWin + ", Terminal");

            //than create win
            _dictKViewModelVView[viewMod] = (Window)Activator.CreateInstance(type);


            //
            viewMod.RegisterWindow(_dictKViewModelVView[viewMod]);

            Window win = _dictKViewModelVView[viewMod];

            CUtilWin.ShowActivated(ref win);


            win.Closed += new EventHandler(OnChildWindowClosed);
            //  return win;
        }
        /// <summary>
        /// Get child window of given type. If such window is
        /// not exist create new one
        ///
        /// Call from
        ///
        /// OpenChildWindow
        /// </summary>
        public Window GetViewChildInstance <TChildWindow>() where TChildWindow : Window
        {
            //if window is alredy exist just get it
            var res = _dictKViewModelVView.
                      FirstOrDefault(a => a.Value != null && a.Value.GetType() == typeof(TChildWindow));

            //if exist no need to create it
            if (res.Key != null)
            {
                return(_dictKViewModelVView[res.Key]);
            }

            //if not need to create it


            //first find type of view model for this type of win
            Type typeViewModel = _dictKTypeWindowVTypeViewModelChild.
                                 FirstOrDefault(a => a.Key == typeof(TChildWindow)).Value;

            //than find view model instance
            BaseViewModelChildWin viewMod = _dictKViewModelVView.FirstOrDefault(a => a.Key.GetType() == typeViewModel).Key;



            //than create win and return it
            _dictKViewModelVView[viewMod] = (TChildWindow)Activator.CreateInstance(typeof(TChildWindow));


            viewMod.RegisterWindow(_dictKViewModelVView[viewMod]);

            return(_dictKViewModelVView[viewMod]);
        }
        public BaseViewModelChildWin GetViewModelChilInst <T>()
        {
            BaseViewModelChildWin res = null;

            foreach (var kvp in _dictKViewModelVView)
            {
                if (kvp.Key.GetType() == typeof(T))
                {
                    res = kvp.Key;
                }
            }
            return(res);
        }