https://communities.bentley.com/communities/other_communities/chinafirst/f/microstation-projectwise/243151/ms-c-getallrelationshipinstances我得到一个IECInstance集合，然后我想遍历看看哪个有Relationship，调用 DgnUtilities.GetAllRelationshipInstances(instance)时发现没有relationship的并不是返回null或者空集合，而是直接造成了软件崩溃，这是什么原因，怎样才是正确方式呢？捕获异常也不行en-USTelligent Community 12https://communities.bentley.com/thread/758359?ContentTypeID=1Tue, 21 Mar 2023 06:06:15 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:29b88b23-02db-492d-bb82-d4b49ec83ae9HongQiang Guo<p>请参考这个茄子里边的方法：&nbsp;<a href="https://communities.bentley.com/communities/other_communities/chinafirst/f/microstation-projectwise/242388/ms-ce-c-instance-getrelationshipinstances/756034">RE: 【MS CE C#】获取instance.GetRelationshipInstances()结果为空，但是软件资源管理器中可以查看</a>&nbsp;</p> <p><span lang="en-US">MS</span><span lang="zh-CN">学习资源：</span></p> <p><a href="/communities/other_communities/chinafirst/w/chinawiki/54753/microstation-wednesday"><span>MicroStation Wednesday</span><span>视频分享</span></a><span>&nbsp;</span></p> <p><a href="/communities/other_communities/chinafirst/w/chinawiki/54803/microstation-dgn"><span>深入探讨</span><span>MicroStation DGN</span><span>基本概念系列</span></a></p> <p><a href="/communities/other_communities/chinafirst/w/chinawiki/57703/microstation-ce-addin">一步步学习MicroStation CE Addin开发</a></p> <p><a href="/communities/other_communities/chinafirst/w/chinawiki/57704/microstation-ce-mdl">一步步学习MicroStation CE MDL开发</a></p><div style="clear:both;"></div>