OnEnterBreakMode不会触发

Question

运行VS 2012.我创建了一个加载项。我想处理OnEnterBreakMode事件。调用Exec方法。我试过返回processed = true / false。永远不会调用处理程序。我尝试了几种DTE和DTE2。我转到工具菜单＆gt;单击“MyAddIn1”并调用Exec方法。我验证了事件的约束。我不知道加载项的生命周期是如何工作的。

StartEvents不是覆盖，它与任何东西都没有关联。我觉得很奇怪......

public void Exec(string commandName, vsCommandExecOption executeOption, ref object varIn, ref object varOut, ref bool handled)
        {
            handled = false;
            if(executeOption == vsCommandExecOption.vsCommandExecOptionDoDefault)
            {
                if(commandName == "MyAddin1.Connect.MyAddin1")
                {
                    //handled = true;

                    // Place the following code in the Exec method of the add-in:                           
                    EnvDTE.DebuggerEvents debugEvents = _applicationObject.Events.DebuggerEvents;
                    debugEvents.OnEnterBreakMode += new _dispDebuggerEvents_OnEnterBreakModeEventHandler(Connect.BreakHandler);

                    return;
                }
            }
        }
        private DTE _applicationObject;
        private AddIn _addInInstance;

        // Place the following Event handler code in the add-in:
        // Needed to activate event handlers in Connect.Exec.
        public static void StartEvents(DTE dte)
        {
            Console.WriteLine("Events are attached.");
        }

        // OnEnterBreakMode Event.
        public static void BreakHandler(dbgEventReason reason, ref dbgExecutionAction execAction)
        {
            Console.WriteLine("Debugger enters break mode. " + "Reason: " + reason.ToString());
        }

Answer 1

如果为事件创建局部变量并订阅它，那么在保留范围后GC将释放该变量，并且不会触发事件处理程序。

如果你使debugEvents成员变量，那么它应该可以正常工作。