topic Re: eNotInBlock error when running DisplayOrder on Hatches and their boundary loops. in .NET Forum

eNotInBlock error when running DisplayOrder on Hatches and their boundary loops.

dennis — Thu, 04 Mar 2021 14:49:11 GMT

I have a Hatch Extension that is giving me an error periodically. I do have a catch in place, and when it hits, I get the msg: "eNotInBlock". It appears to not affect at all the successful completion of the code. It is just annoying. Note in the code below, I also have a Database extension that makes it easier for me to run Transactions.

If anyone can shed some light on the error, I would appreciate it.

public static void SetDisplayOrder(this Hatch bhatch) { Database acDb; var hatchid = bhatch.ObjectId; if (hatchid.IsPerfectlyValid()) acDb = hatchid.Database; else return; acDb.UsingTransaction(tr => { var blktbl = (BlockTable)tr.GetObject(acDb.BlockTableId, OpenMode.ForRead); var btr = (BlockTableRecord)tr.GetObject(blktbl[BlockTableRecord.ModelSpace], OpenMode.ForWrite); var hatch = (Hatch)tr.GetObject(hatchid, OpenMode.ForWrite); var loopids = hatch.GetAssociatedObjectIds(); DrawOrderTable dot = (DrawOrderTable)tr.GetObject(btr.DrawOrderTableId, OpenMode.ForWrite); try { dot.MoveToBottom(loopids); var idcol = new ObjectIdCollection { hatch.ObjectId }; foreach (ObjectId loopid in loopids) { dot.MoveBelow(idcol, loopid); } } catch (Autodesk.AutoCAD.Runtime.Exception aex) { Console.WriteLine(aex.Message); } catch (System.Exception ex) { Console.WriteLine(ex.Message); } hatch.EvaluateHatch(true); }); }

Re: eNotInBlock error when running DisplayOrder on Hatches and their boundary loops.

Alexander.Rivilis — Thu, 04 Mar 2021 15:13:56 GMT

It is look like after getting var loopids = hatch.GetAssociatedObjectIds(); you have to check ownerID of each ObjectId and if it is not equal blktbl[BlockTableRecord.ModelSpace] - you have to skip it in loop of dot.MoveBelow(...)

Re: eNotInBlock error when running DisplayOrder on Hatches and their boundary loops.

dennis — Thu, 04 Mar 2021 15:41:16 GMT

Taking your input, I wrote code to test if the loop has the same OwnerId as the hatch. You were correct, when they don't match, then it errors. If you can explain, I would appreciate it, "How can they have a different OwnerId?"

I did try within the transaction to set the loop.OwnerId = hatch.OwnerId, which did work, but it still throws the error.

Re: eNotInBlock error when running DisplayOrder on Hatches and their boundary loops.

Alexander.Rivilis — Thu, 04 Mar 2021 16:01:42 GMT

Maybe this objects are not in ModelSpace but in other BlockTableRecord(s)? You have to check owner of it.

It is impossible to set property OwnerId but there is a method BlockTableRecord.AssumeOwnershipOf which help to change owner of entities.

Sample of using this method: https://forums.autodesk.com/t5/net/selecting-all-entities-and-drawing-and-moving-them-from/m-p/9304101#M64876

Re: eNotInBlock error when running DisplayOrder on Hatches and their boundary loops.

dennis — Thu, 04 Mar 2021 16:02:55 GMT

Thanks for the help. The Assume doesn't relieve the problem, but now I know what to check so as to avoid the catch. In the long run, it doesn't seem to be causing any downstream problems.