is it possible to check whether the cell instance from the same cell?

Hi Rick,

a few comments:

• This is general programming group. Because your question is specifically about MicroStation CE, I recommend to move your question to MicroStation Programming forum (please don't create new post but move this existing one).
• Exactly the same question was discussed by Changsong already not so long ago. Did you search forums for existing discussions before you sreated your post?

With regards,

  Jan

thanks Jan, I will check the other post again, actually that post did not answer my questions directly. anyway, thanks,

BTW,  this post is in the communities.bentley.com/.../microstation-programming---forum

thanks Jan, I will check the other post again, actually that post did not answer my questions directly. anyway, thanks,

BTW,  this post is in the communities.bentley.com/.../microstation-programming---forum

Hi Rick,

Rick cheng said:

actually that post did not answer my questions directly.

As far as I remember, it think it discussed the whole topic in quite complete way. But if there is anything unclear or specific, please identify area not covered the discussion.

In your origina post, there are two separate topics:

• Does a cell remember its original cell library? Answer: No, it does not. In specific situations you can deduce this information when a cell has the same name and the same content, but in general it's not enough, because there can be another cell library with completely the same cell inside.
• Do MicroStation knows cell instances are the same and the same cell library was used? This is far more complex question and you did not specify whether you use normal or shared cells. Different options are covered in the mentioned discussion including Bob's recommendation of MDL functions that can be used.

With regards,

  Jan

yes, u are right, there are two topics, and i am taking about normal cells,  shared cells is easy to identify.