wpf InteractionRequestTrigger 不受支持

[ilikeff8]

只是想在vm里弹一个对话框，然后ok,cancel后在vm里再做点事情， 按网上的例子

vm中

        public InteractionRequest<Confirmation> ShowMessageBoxRequest { get; set; }

          //MessageBox.Show("请选择设备");
          ShowMessageBoxRequest.Raise(new Confirmation() { Title = "提示", Content = "请选择设备" }, (Confirmed) => { return; });

xaml中

 xmlns:prism="http://www.codeplex.com/prism"

    <i:Interaction.Triggers>
        <prism:InteractionRequestTrigger SourceObject="{Binding ShowMessageBoxRequest, Mode=OneWay}">
            <prism:PopupChildWindowAction  ContentTemplate="{StaticResource ConfirmWindowTemplate}"/>
        </prism:InteractionRequestTrigger>
    </i:Interaction.Triggers>

但提示
程序集"Microsoft.Practices.Prism.Interactivity"中的类型"InteractionRequestTrigger"是利用旧版本的Blend SDK构建的，并且在Windows Presentation Framework 4 项目中不受支持
以及
命名空间 "http://www.codeplex.com/prism" 中不存在"PopupChildWindowAction"名称

那是要怎么写了

[ilikeff8]

引用 2 楼 xuggzu 的回复:

引用：
- Microsoft.Expression.Interactions.dll
- System.Windows.Interactivity.dll
用法，百度

1 命名空间 "http://www.codeplex.com/prism" 中不存在"PopupChildWindowAction"名称

是引用的dll的版本问题。我偷懒直接搜索使用了nuget上的提供的2个dll，可能是4.0的？


而工程的framework是4.5的
直接引用本机的blend 2017下的这2个dll就不会提示错误了

2 程序集"Microsoft.Practices.Prism.Interactivity"中的类型"InteractionRequestTrigger"是利用旧版本的Blend SDK构建的，并且在Windows Presentation Framework 4 项目中不受支持
然后这个提示可以无视，运行也不会出错

    <i:Interaction.Triggers>
        <prism:InteractionRequestTrigger SourceObject="{Binding ShowOKMessageBoxRequest}">
            <ta:ShowOKMessageBoxTriggerAction/>
        </prism:InteractionRequestTrigger>
    </i:Interaction.Triggers>

    public class ShowOKMessageBoxTriggerAction : TriggerAction<FrameworkElement>
    {
        protected override void Invoke(object parameter)
        {
            InteractionRequestedEventArgs interactionRequestedEventArgs = parameter as InteractionRequestedEventArgs;

            if (interactionRequestedEventArgs != null)
            {
                Confirmation confirmation = interactionRequestedEventArgs.Context as Confirmation;

                if (confirmation != null)
                {
                    MessageBoxContent messageBoxContent = confirmation.Content as MessageBoxContent;

                    if (messageBoxContent != null)
                    {
                        MessageBox.Show(App.Current.MainWindow, messageBoxContent.content, confirmation.Title, MessageBoxButton.OK, messageBoxContent.messageBoxImage);
                        confirmation.Confirmed = true;

                        interactionRequestedEventArgs.Callback?.Invoke();
                    }
                }
            }
        }
    }

vm:

  public InteractionRequest<Confirmation> ShowOKMessageBoxRequest { get; set; }

        void InvokeShowOKMessageBoxRequest(string content, MessageBoxImage messageBoxImage)
        {
            ShowOKMessageBoxRequest.Raise(new Confirmation()
            {
                Title = "提示",
                Content = new MessageBoxContent()
                {
                    content = content,
                    messageBoxImage = messageBoxImage
                }
            });
        }

        public ICommand AppendUSBCAN2Command
        {
            get
            {
                return new DelegateCommand(() =>
                {
                    if (CurrentSerial == null)
                    {
                        InvokeShowOKMessageBoxRequest("请选择设备", MessageBoxImage.Error);
                        return;
                    }
                    if (CurrentChannel_USBCAN2 == null)
                    {
                        InvokeShowOKMessageBoxRequest("请选择设通道", MessageBoxImage.Error);
                        return;
                    }

                    ControllerParam controllerParam = hardwareHelper.CreateDefaultParam_USBCAN2();

                    controllerParam.Serial = CurrentSerial;
                    controllerParam.Channel = CurrentChannel_USBCAN2.ID; // 1 - 通道1，2 - 通道2
                    hardwareHelper.AddController(controllerParam);
                    ControllerParamList = new ObservableCollection<ControllerParam>(hardwareHelper.ControllerParamList);
                });
            }
        }

[ilikeff8]

不想使用messagebox的okcancel,但要符合mvvm，这代码也太复杂了，而且关键还不对

[xuggzu]

引用：
- Microsoft.Expression.Interactions.dll
- System.Windows.Interactivity.dll
用法，百度