下图中的弹窗就是我通过VSTO使用C#开发word add-in时遇到的情况，具体过程是，我把Bookmark的range的text转移到contentcontrol的tag里面，但是某些bookmark在转移的过程中，会弹出下图的异常“不能在此处应用RTF控件”，所以我想捕获到这个异常，不让它弹出这个窗口，跳过当前这个bookmark，继续进行接下来的bookmark。
Below the popup window is me by using c # development word add - in VSTO encountered situation, the specific process was, I put a Bookmark in the range of the text is transferred to the contentcontrol tag on the inside, but some a Bookmark in the process of transfer, will pop up below the exception "using RTF controls" not here, so I want to catch this exception, don't let it pop up the window, skip the current Bookmark, continue to the next Bookmark,
在我的程序中，我使用代码来实现以上过程：
In my program, I use code to implement the above process: