protected override async Task OnInitializedAsync()
        {
            this.SelectedRowItemForEdit = this.editPlaceHolder = NomenclaturesFactory.GetEmptyUserDto();
            this.RolesSelection         = await this.RoleService.GetAllAsync() as IReadOnlyList <RoleDto>;

            this.TableItems = await this.UserService.GetAllAsync();
        }
 public override void AddNewRow()
 {
     this.SelectedRowItemForEdit = NomenclaturesFactory.GetEmptyUserDto();
     base.AddNewRow();
 }