交互 - IInteractionRequestAware属性不填充

时间:2015-10-19 20:20:01

标签: c# wpf prism

我正在尝试在其自己的模块中创建自定义弹出窗口,这会导致我出现以下情况(ContentControl内的PopupWindowAction):

<i:Interaction.Triggers>
    <prism:InteractionRequestTrigger SourceObject="{Binding Path=MyRequest, Mode=OneWay}">
        <prism:PopupWindowAction IsModal="True" CenterOverAssociatedObject="True">
            <prism:PopupWindowAction.WindowContent>
                <ContentControl prism:RegionManager.RegionName="{x:Static inf:RegionNames.MyRegion}"/>
            </prism:PopupWindowAction.WindowContent>
        </prism:PopupWindowAction>
    </prism:InteractionRequestTrigger>
</i:Interaction.Triggers>

视图很好地加载到弹出窗口中,但 IInteractionRequestAware 属性(通知 FinishInteraction )在视图和视图上都为空模型。

这是设置这些属性的Prism源代码:

    /// <summary>
    /// Checks if the WindowContent or its DataContext implements <see cref="IInteractionRequestAware"/>.
    /// If so, it sets the corresponding value.
    /// Also, if WindowContent does not have a RegionManager attached, it creates a new scoped RegionManager for it.
    /// </summary>
    /// <param name="notification">The notification to be set as a DataContext in the HostWindow.</param>
    /// <param name="wrapperWindow">The HostWindow</param>
    protected virtual void PrepareContentForWindow(INotification notification, Window wrapperWindow)
    {
        if (this.WindowContent == null)
        {
            return;
        }

        // We set the WindowContent as the content of the window. 
        wrapperWindow.Content = this.WindowContent;

        Action<IInteractionRequestAware> setNotificationAndClose = (iira) =>
        {
            iira.Notification = notification;
            iira.FinishInteraction = () => wrapperWindow.Close();
        };

        MvvmHelpers.ViewAndViewModelAction(this.WindowContent, setNotificationAndClose);
    }

这是否意味着正在检查ContentControl对象以查看它是否实现IInteractionRequestAware而不是我的视图或视图模型?

是否可以使用区域管理器指定一个包含所有注入的自定义弹出视图,并且仍然设置了IInteractionRequestAware属性?

1 个答案:

答案 0 :(得分:2)

你有两种选择;创建一个实现适当接口的自定义ContentControl。或者,创建并使用对话服务。我实际上建议使用对话服务,因为你想要一个更动态的弹出行为。 Plural服务涵盖PluralSight课程'Prism Problems&amp; amp;解决方案:显示多个壳。