Transaction.Commit in subassembly.draw method crashes Civil 3D

[denler]

Hi everyone, I have to create a custom C3D subassembly in C#. While computing the corridor in design mode, I have to save some data in the corridor Xrecord. I'm not sure this is possible at the time of computing the corridor... In my Draw method of my subassembly, I have to execute the transaction.Commit() method to save my custom data. The corridor computes correctly, but C3D crashes at the end of corridor recalc. Is it normal? If I don’t execute the transaction.Commit() method, the program don’t crashes, but my data is not saved. How can I save data into the corridor while my subassembly is calculating? Thanks a lot, Denis

[Anonymous]

Hi denler,

Could you check your code to see if you have used trans.GetObject(objId, OpenMode.ForRead).... ?

That could be causing the crash as you are trying to add data without opening the Object in OpenMode.ForWrite.

If this is not the case, its hard to guess, unless we get to see a code snippet which is crashing Civil 3D.

Thanks,

Partha Sarkar

Autodesk

[denler]

Hi Partha, Thank you for your replay. The access to the corridor used OpenMode.ForRead. A quick test with the code below gives me the same result : C3D computes correctly the corridor and crashes after last station is computed. code : protected override void DrawImplement(Autodesk.Civil.Runtime.CorridorState corridorState) { using (Transaction trans = Application.DocumentManager.MdiActiveDocument.TransactionManager.StartTransaction()) { trans.Commit(); //I know this is stupid, but this is just for a test } } I don't have any error info in MS Visual studio output messages nor error no from Civil 3D. I think I'm going to use a temp file to store data... Regards, Denis

[Anonymous]

So you have found a workaround to address this issue.

If you need any further help, I would request you to share a reproduceable code snippet so that I can debug into it to figure out the cause of the crash.

Cheers,

Partha