WPF绑定防止Visio事件被触发 [英] WPF Binding Prevents Visio Events from Firing

问题描述

我知道这听起来很奇怪，但确实如此。

I know this sounds bizarre, but it is true.

我有一个简单的WPF应用程序托管一个Visio控件。没有问题。一些基本事件，例如DocumentOpened确实有效。

I have a simply WPF application that hosts a Visio control. There are no problems with that. Some essential events, such as DocumentOpened does work.

 

但是如果我想处理其他事件，例如，BeforeShapeDeleted，CellChanged，一旦我将Shapes绑定到DocumentOpened中的ListBox，它们就会停止触发。

But if I want to handle other events, for instance, BeforeShapeDeleted, CellChanged, they stop firing once I bind Shapes to a ListBox in the DocumentOpened.

这是我的代码：

public partial class MainWindow : Window
    {
        private AxMicrosoft.Office.Interop.VisOcx.AxDrawingControl visioControl = new AxMicrosoft.Office.Interop.VisOcx.AxDrawingControl();
        
        public MainWindow()
        {
            InitializeComponent();
            this.host.Child = this.visioControl;
        }

        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            this.visioControl.DocumentOpened += new AxMicrosoft.Office.Interop.VisOcx.EVisOcx_DocumentOpenedEventHandler(visioControl_DocumentOpened);
            this.visioControl.Window.Application.BeforeShapeDelete += new Microsoft.Office.Interop.Visio.EApplication_BeforeShapeDeleteEventHandler(Application_BeforeShapeDelete);
            this.visioControl.Window.Application.CellChanged += new Microsoft.Office.Interop.Visio.EApplication_CellChangedEventHandler(Application_CellChanged);
        }

        void Application_CellChanged(Microsoft.Office.Interop.Visio.Cell Cell)
        {
            MessageBox.Show("Changed");
        }

        void Application_BeforeShapeDelete(Microsoft.Office.Interop.Visio.Shape Shape)
        {
            MessageBox.Show("Deleted");
        }

        void visioControl_DocumentOpened(object sender, AxMicrosoft.Office.Interop.VisOcx.EVisOcx_DocumentOpenedEvent e)
        {
            //if I comment the line bellow BeforeShapeDelete and CellChanged will work, if I leave it uncommented, they won't work...
            lstShapes.ItemsSource = this.visioControl.Window.Application.ActivePage.Shapes;
        }

        private void mnuOpen_Click(object sender, RoutedEventArgs e)
        {
            Microsoft.Win32.OpenFileDialog dlgOpenDiagram = new Microsoft.Win32.OpenFileDialog();

            if (dlgOpenDiagram.ShowDialog() == true)
            {
                this.visioControl.Src = dlgOpenDiagram.FileName;
            }
        }
    }

推荐答案

嗨Mike，

感谢您发帖。

阅读完您的帖子后，我尝试重现该方案，但失败了。那么，您能否告诉我关于您的WPF项目的可重现步骤？你是如何添加AxDrawingControl的，我无法通过从
COM Components选项卡中选择项目从ToolBox中找到它。

After reading your post, I tried to reproduce the scenario on my side, but failed. So, could you tell me the reproducible steps about your WPF project? How did you add the AxDrawingControl , I can't find it from the ToolBox by choosing the item from the COM Components tab.

如果你能发给我，那就太好了您的项目副本到我的电子邮箱
[e-mail]

It will be nice if you can send me a copy of your project to my email [e-mail]

我将根据您的详细信息进一步研究。

I will do further research with your detailed information.

最好的问候，

这篇关于WPF绑定防止Visio事件被触发的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！