在 C# 中自动删除 COM 事件处理程序
我有一个独立的 .exe COM 服务器和一个简单的 C# 测试程序，该程序启动服务器的实例并随后立即关闭它。就像魅力一样。但是，如果我关闭 C# 程序本身，我会在终结器运行期间收到异常，因为它试图从不再运行的 COM 服务器取消注册/取消通知 COM 事件接收器。
例外是
“mscorlib.dll 中发生了 System.Runtime.InteropServices.InvalidComObjectException' 类型的第一次机会异常”
以及调用堆栈：
mscorlib.dll!System.Runtime.InteropServices.ComEventsSink.Unadvise() + 0x20 字节 mscorlib.dll!System.Runtime.InteropServices.ComEventsSink.RemoveAll(System.Runtime.InteropServices.ComEventsSink 接收器) + 0x11 字节
mscorlib.dll!System.Runtime.InteropServices.ComEventsInfo.Finalize() + 0x18 字节
我可以通过在关闭服务器之前手动删除 COM 事件处理程序来修复此错误。即 myComServer.OnFunkyEvent -= OnFunkyEventHandler;然而，我发现这不优雅、容易出错并且乏味。所以问题是，我能否以某种方式手动触发 COM 事件的 RemoveAll() 调用，以便它不会在终结器中运行？
I have a standalone .exe COM server and a trivial C# test program that launches an instance of the server and closes it immediately afterwards. Works like a charm. However, if I close the C# program itself I get an exception during the finalizer run because it is trying to unregister/unadvise COM event sinks from the no longer running COM server.
The exception is
"A first chance exception of type System.Runtime.InteropServices.InvalidComObjectException' occurred in mscorlib.dll"
And the callstack:
mscorlib.dll!System.Runtime.InteropServices.ComEventsSink.Unadvise() + 0x20 bytes mscorlib.dll!System.Runtime.InteropServices.ComEventsSink.RemoveAll(System.Runtime.InteropServices.ComEventsSink sinks) + 0x11 bytes
mscorlib.dll!System.Runtime.InteropServices.ComEventsInfo.Finalize() + 0x18 bytes
I can fix this error by manually removing the COM event handlers before shutting down the server. I.e. myComServer.OnFunkyEvent -= OnFunkyEventHandler; However, I find this inelegant, error prone and tedious. So the question is, can I somehow trigger the RemoveAll() call for my COM events manually so it won't run in the finalizer?
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