在运行backgroundworker时不会触发Excel Worksheet事件

Question

I have a backgroundworker that is running a heavy task. While it runs the user can do some stuff in the UI like change the value of an Excel cell. There are also events like WorksheetChange event configured.

Now when the backgroundworker is running, these events do not get fired until the backgroundworker completes its execution. Why is that so? Why is a separate thread blocking Excel events?

Answer 1

Stupid mistake. The function that the backgroundworker calls was disabling the application events this.Application.EnableEvents = false;

Hence, until it completed its work the other events wouldn't fire