private void AddRoleToUser(ResponseRoleClass obj)
        {
            if (obj == null)
            {
                return;
            }
            TransactionService.AddRoleToUser(new Transaction(new ServerLib.JTypes.Client.RequestUserRoleAddClass()
            {
                RoleID = obj.ID,
                UserID = SelectedUserClass.ID,
                Token  = DataStorage.Instance.Login.Token
            },
                                                             new Action(() =>
            {
                Application.Current.Dispatcher.Invoke(() =>
                {
                    UserUnusedRoles.Remove(obj);
                    UserUsedRoles.Add(obj);
                    Notify("UserUnusedRoles");
                    Notify("UserUsedRoles");

                    AddRoleToUserButtonEnable = UserUnusedRoles.Count > 0;
                    Notify("AddRoleToUserButtonEnable");

                    RemoveRoleToUserButtonEnable = UserUsedRoles.Count > 0;
                    Notify("RemoveRoleToUserButtonEnable");
                });
            }), new Action(() => { })));;
        }
        private void UpdateRoles()
        {
            UserUsedRoles.Clear();
            foreach (ResponseUserRoleClass userRoleClass in DataStorage.Instance.UsersRolesList)
            {
                if (SelectedUserClass != null && userRoleClass.UserID == SelectedUserClass.ID)
                {
                    UserUsedRoles.Add(DataStorage.Instance.RoleList.Find(x => x.ID == userRoleClass.RoleID));
                    Notify("UserUsedRoles");
                }
            }
            UserUnusedRoles = new ObservableCollection <ResponseRoleClass>(DataStorage.Instance.RoleList.Except(UserUsedRoles));
            Notify("UserUnusedRoles");
            Notify("SelectedUserClass");

            AddRoleToUserButtonEnable = UserUnusedRoles.Count > 0;
            Notify("AddRoleToUserButtonEnable");

            RemoveRoleToUserButtonEnable = UserUsedRoles.Count > 0;
            Notify("RemoveRoleToUserButtonEnable");
        }