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[ASP.net教程]Prism.Interactivity 之 PopupWindowAction 用法简记


  • PopupWindow通过InteractionRequestTrigger(EventTrigger的派生类)侦听目标对象(InteractionRequest<T>类型)的Raised事件Show出来;
    <winInteractivity:Interaction.Triggers>      <prism:InteractionRequestTrigger SourceObject="{Binding Path=EmployeePopupViewRequest,Mode=OneWay}">        <prism:PopupWindowAction IsModal="True" CenterOverAssociatedObject="True">          <prism:PopupWindowAction.WindowContent>            <views:EmployeeView />          </prism:PopupWindowAction.WindowContent>        </prism:PopupWindowAction>      </prism:InteractionRequestTrigger>    </winInteractivity:Interaction.Triggers>

  • PopupWindow实现IInteractionRequestAware接口,通过Action委托成员FinishInteraction关闭PopupWindow;
    public Action FinishInteraction { get; set; }    public INotification Notification    {      get      {        return this.DataContext as INotification;      }      set      {        this.DataContext = value;      }    }    private void CloseWindow()    {      if (this.FinishInteraction != null)        this.FinishInteraction();    }

  • InteractionRequestedEventArgs(上述Raised事件的事件处理器的EventArgs)有两个只要成员,一个是INotification的派生类(将会作为PopupWindow的DataContext:即ViewModel),另一个是回调使用的Action委托。