加载项事件永远不会执行 [英] Add-In events are never executed

问题描述

我使用Visual Studio加载项向导创建一个新的Addin项目，现在我正在尝试添加一些事件处理程序：

  public void OnConnection（object application，ext_ConnectMode connectMode，object addInInst，ref Array custom）
 {
 _applicationObject =（DTE2） 
 _addInInstance =（AddIn）addInInst; 
 
 _applicationObject.Events.BuildEvents.OnBuildBegin + = BuildEvents_OnBuildBegin; 
 _applicationObject.Events.BuildEvents.OnBuildDone + = BuildEvents_OnBuildDone; 
 _applicationObject.Events.SelectionEvents.OnChange + = SelectionEvents_OnChange; 
 _applicationObject.Events.DocumentEvents.DocumentOpened + = DocumentEvents_DocumentOpened; 
 _applicationObject.Events.DocumentEvents.DocumentSaved + = DocumentEvents_DocumentSaved; 
} 
  

但无论我做什么，我的处理程序都永远不会执行！

$我是盲人吗？我必须做任何事情来注册这些处理程序，或者为什么不工作？

解决方案

看起来你是一个受害者的垃圾收集器。请参阅： http://www.mztools.com/articles/2005/mz2005012.aspx

  private readonly BuildEvents _buildEvents; 
 private readonly SelectionEvents _selectionEvents; 
 private readonly DocumentEvents _documentEvents; 
私人只读事件_events; 
 
 public void OnConnection（object application，ext_ConnectMode connectMode，object addInInst，ref Array custom）
 {
 _applicationObject =（DTE2） 
 _addInInstance =（AddIn）addInInst; 
 _events = _applicationObject.Events; 
 
 _buildEvents = _events.BuildEvents; 
 _buildEvents.OnBuildBegin + = BuildEvents_OnBuildBegin; 
 _buildEvents.OnBuildDone + = BuildEvents_OnBuildDone; 
 
 _selectionEvents = _events.SelectionEvents; 
 _selectionEvents.OnChange + = SelectionEvents_OnChange; 
 
 _documentEvents = _events.DocumentEvents; 
 _documentEvents.DocumentOpened + = DocumentEvents_DocumentOpened; 
 _documentEvents.DocumentSaved + = DocumentEvents_DocumentSaved; 
} 
  

I used the "Add-In for Visual Studio" wizard to create a new Addin project and now, I'm trying to add some event handlers:

public void OnConnection(object application, ext_ConnectMode connectMode, object addInInst, ref Array custom)
{
    _applicationObject = (DTE2)application;
    _addInInstance = (AddIn)addInInst;

    _applicationObject.Events.BuildEvents.OnBuildBegin += BuildEvents_OnBuildBegin;
    _applicationObject.Events.BuildEvents.OnBuildDone += BuildEvents_OnBuildDone;
    _applicationObject.Events.SelectionEvents.OnChange += SelectionEvents_OnChange;
    _applicationObject.Events.DocumentEvents.DocumentOpened += DocumentEvents_DocumentOpened;
    _applicationObject.Events.DocumentEvents.DocumentSaved += DocumentEvents_DocumentSaved;
}

But whatever I do, my handlers are never executed!

Am I blind? Do I have to do anything else to register these handlers or why doesn't it work?

解决方案

Seems you're a victim of the Garbage Collector. See: http://www.mztools.com/articles/2005/mz2005012.aspx

 private readonly BuildEvents _buildEvents;
 private readonly SelectionEvents _selectionEvents;
 private readonly DocumentEvents _documentEvents;
 private readonly Events _events;

 public void OnConnection(object application, ext_ConnectMode connectMode, object addInInst, ref Array custom)
 {
     _applicationObject = (DTE2)application;
     _addInInstance = (AddIn)addInInst;
     _events = _applicationObject.Events;

     _buildEvents = _events.BuildEvents;
     _buildEvents.OnBuildBegin += BuildEvents_OnBuildBegin;
     _buildEvents.OnBuildDone += BuildEvents_OnBuildDone;

     _selectionEvents = _events.SelectionEvents;
     _selectionEvents.OnChange += SelectionEvents_OnChange;

     _documentEvents = _events.DocumentEvents;
     _documentEvents.DocumentOpened += DocumentEvents_DocumentOpened;
     _documentEvents.DocumentSaved += DocumentEvents_DocumentSaved;
 }

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