Topic: [.NET C#] Xref DrawOrder eNoInternalSpace Error [Solved]

[SameOld]

Hey guys

I'm trying to get all Xrefs in a specific order. The order is set through a list with all Xrefnames (order of list = draw order reversed).
It's getting the Ids of the Xrefs just fine, but on DrawOrderTable.MoveToBottom it gives the error eNoInternalSpace.
Does anyone have any idea why?

Thanks in advance

Code - C#: [Select]

1.     [CommandMethod("XrefDrawOrder")]
2.         public void XrefDrawOrder()
3.         {
4.             Document doc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument;
5.             Database db = doc.Database;
6.             Editor ed = doc.Editor;
7.  
8.             List<string> xrefNames = new List<string>() {
9.             "FS-X",
10.             "BS-SN-x",
11.             "BS-x_BS-G-x",
12.             "EE-x",
13.             "IB-x_SA-x",
14.             "BS-AV-x",
15.             "BS-AV-x_1"
16.             };
17.  
18.             try
19.             {
20.                 using (Transaction tr = db.TransactionManager.StartTransaction())
21.                 {
22.                     XrefGraph xg = db.GetHostDwgXrefGraph(true);
23.  
24.                     GraphNode root = xg.RootNode;
25.  
26.                     List<XrefGraphNode> nodes = new List<XrefGraphNode>();
27.  
28.                     for(int i = 0; i < root.NumOut; i++)
29.                     {
30.                         XrefGraphNode child = root.Out(i) as XrefGraphNode;
31.  
32.                         if(child.XrefStatus == XrefStatus.Resolved)
33.                         {
34.                             nodes.Add(child);
35.                         }
36.                     }
37.  
38.                     foreach(string xrefName in xrefNames)
39.                     {
40.                         //get id of xref, this works.
41.                         ObjectId id = nodes.Where(x => x.Database.Filename.Contains(xrefName)).FirstOrDefault().BlockTableRecordId;
42.                         ObjectIdCollection entityIds = new ObjectIdCollection
43.                         {
44.                             id
45.                         };                        
46.  
47.                         if (id != null)
48.                         {
49.                             BlockTable bt = (BlockTable)tr.GetObject(db.BlockTableId, OpenMode.ForRead);
50.                             BlockTableRecord modelSpace = (BlockTableRecord)tr.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForRead);
51.                             // Get the DrawOrderTable for ModelSpace
52.                             DrawOrderTable dot = tr.GetObject(modelSpace.DrawOrderTableId, OpenMode.ForWrite) as DrawOrderTable;
53.  
54.                             //error here
55.                             dot.MoveToBottom(entityIds);
56.                         }
57.                     }
58.                     tr.Commit();
59.                 }
60.             }
61.             catch (Autodesk.AutoCAD.Runtime.Exception e)
62.             {
63.                 ed.WriteMessage("\nError during shit: " + e.Message);
64.             }
65.             finally { db.Dispose(); }
66.         }
67.     }

edit, Kerry :  [ code = csharp ] tag added

[kdub_nz]

I wonder if this is still an issue ?
https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/draw-order-send-to-back-and-bring-to-front-do-not-work-in-autocad.html

You may need to go to AutoDesk for this question.
You'll need to provide a reproducible demo (code and drawing )

added: found this
https://forums.autodesk.com/t5/net/manage-xref-draworder/td-p/6407481

[SameOld]

Thanks a lot for the second link! Dont know how you found that, cause I certainly didnt. =/

His solution was a bit convoluted but the takeaway was, that i had the wrong ObjectId. My working code looks like this now:

Code - C#: [Select]

1. [CommandMethod("DrawOrder")]
2.         public void DrawOrder()
3.         {
4.             Document doc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument;
5.             Database db = doc.Database;
6.             Editor ed = doc.Editor;
7.  
8.             //Initialise list of xrefnames in order. Would be better to have it in a file and load it in or something instead of hardcoding.
9.             //I use movetobottom so the first in this list will be on top of the others
10.             List<string> xrefNames = new List<string>() {
11.             "FS-X",
12.             "BS-SN-x",
13.             "BS-x_BS-G-x",
14.             "EE-x",
15.             "IB-x_SA-x",
16.             "BS-AV-x",
17.             "BS-AV-x_1"
18.             };
19.  
20.  
21.             // Build a selection filter looking for 'INSERT' objects (includes blocks and xrefs) from modelspace (DXF code 67 = 0)
22.             TypedValue[] tvs = { new TypedValue(0, "INSERT"), new TypedValue(67, 0) };
23.             SelectionFilter sf = new SelectionFilter(tvs);
24.  
25.             // Get objects matching the selection filter.
26.             PromptSelectionResult psr = ed.SelectAll(sf);
27.  
28.             // Initialise Dictionary -> so we can search with linq. Dict cause you cant find the name in Entity, but in the blocktablerecord
29.             Dictionary<string, Entity> xRefDict = new Dictionary<string, Entity>();
30.  
31.             try
32.             {
33.                 if (psr.Status == PromptStatus.OK)
34.                 {
35.                     // Get the object Ids from the selection.
36.                     ObjectId[] ids = psr.Value.GetObjectIds();
37.  
38.                     using (Transaction tr = db.TransactionManager.StartTransaction())
39.                     {
40.                         //get the modelSpace
41.                         BlockTable bt = (BlockTable)tr.GetObject(db.BlockTableId, OpenMode.ForRead);
42.                         BlockTableRecord modelSpace = (BlockTableRecord)tr.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForRead);
43.                         // Get the DrawOrderTable for ModelSpace
44.                         DrawOrderTable dot = tr.GetObject(modelSpace.DrawOrderTableId, OpenMode.ForWrite) as DrawOrderTable;
45.  
46.                         foreach (ObjectId id in ids)
47.                         {
48.                             // Get the block reference of the ID.
49.                             BlockReference bref = tr.GetObject(id, OpenMode.ForRead, false, true) as BlockReference;
50.                             // Get the block table record for the block reference.
51.                             BlockTableRecord btr = bref.BlockTableRecord.GetObject(OpenMode.ForRead) as BlockTableRecord;
52.                             // If the record is an external reference
53.                             if (btr.IsFromExternalReference)
54.                             {
55.                                 // Get the entity for the record.
56.                                 Entity ent = tr.GetObject(id, OpenMode.ForRead) as Entity;
57.                                 //Add it with the name as key (used to search after)
58.                                 xRefDict.Add(btr.Name, ent);
59.                             }
60.                         }
61.  
62.  
63.                         foreach (string xrefName in xrefNames)
64.                         {
65.                             ObjectId id = new ObjectId();
66.  
67.                             try
68.                             {
69.                                 //get id of xref
70.                                 id = xRefDict.Where(x => x.Key.Contains(xrefName)).FirstOrDefault().Value.ObjectId;
71.                             }
72.                             catch (Autodesk.AutoCAD.Runtime.Exception e)
73.                             {
74.                                 ed.WriteMessage("\nError during finding id in Dict: " + e.Message);
75.                             }
76.                             //Has to be an idcollection even tho i want it to just move a single one
77.                             ObjectIdCollection entityIds = new ObjectIdCollection
78.                             {
79.                                 id
80.                             };
81.  
82.                             if (id != null)
83.                             {
84.                                 dot.MoveToBottom(entityIds);
85.                             }
86.                            
87.                         }
88.                         tr.Commit();
89.                     }
90.                 }
91.             }
92.             catch (Autodesk.AutoCAD.Runtime.Exception e)
93.             {
94.                 ed.WriteMessage("\nError during dot.MoveToBottom: " + e.Message);
95.             }
96.             finally { db.Dispose(); }
97.         }
98.     }

edit, Kerry :  [ code = csharp ] tag added

[kdub_nz]

@SameOld

I found the problem interesting, and I'm pleased that you resolved it.

Regards,
Kerry