Author Topic: Blocktablerecord, access visibily  (Read 243 times)

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latour_g

  • Newt
  • Posts: 172
Blocktablerecord, access visibily
« on: August 26, 2021, 01:43:53 PM »
Hi,

I would like to access visibility grip property.  So far, I can access object but it's not there.  Thank you !

Code - C#: [Select]
  1.         private void xtract_btnScaleBlkNew_Click(object sender, EventArgs e)
  2.         {
  3.             Document doc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument;
  4.             Database db = doc.Database;
  5.  
  6.             using (doc.LockDocument())
  7.             {
  8.                 using (Transaction tr = db.TransactionManager.StartTransaction())
  9.                 {
  10.                     BlockTable bt = tr.GetObject(db.BlockTableId, OpenMode.ForWrite) as BlockTable;
  11.  
  12.                     foreach (ObjectId id in bt)
  13.                     {
  14.                         BlockTableRecord btRecord = (BlockTableRecord)tr.GetObject(id, OpenMode.ForWrite);
  15.  
  16.                         foreach (ObjectId objID in btRecord)
  17.                         {
  18.                             DBObject obj = tr.GetObject(objID, OpenMode.ForWrite) as DBObject;
  19.  
  20.                             if (obj is AttributeDefinition)
  21.                             {
  22.                                 //
  23.                             }
  24.  
  25.                             if (obj is Entity)
  26.                             {
  27.                                 //
  28.                             }
  29.                         }
  30.                     }
  31.                     tr.Commit();
  32.                 }
  33.             }
  34.             ed.Regen();
  35.         }
  36.  

n.yuan

  • Bull Frog
  • Posts: 313
Re: Blocktablerecord, access visibily
« Reply #1 on: August 27, 2021, 08:01:20 AM »
You may want to explain what do you exactly mean by "...access visibility grip property...". Do you mean the Visibility defined with the block definition, or the DynamicBlockReferenceProperty in a block reference, identified by its property name, be it a Visibility property, or other type of properties?

If you want to get to the properties defined with a block definition, then you cannot: there is no API exposed to define/change the dynamic properties, and they are not some kind of Entity/DBObject that you can loop through a BlockTableRecord to reach them.

If you want to read/change the dynamic property in a BlockReference, you loop through BlockRedernce.DynamicBlockReferencePropertyCollection and identify the one in interest by its property name.

latour_g

  • Newt
  • Posts: 172
Re: Blocktablerecord, access visibily
« Reply #2 on: August 27, 2021, 09:01:37 AM »
Yes I mean the visibility defined with the block definition.  I have a command that scale block definition in batch and I wanted to change the location of the visibility grip at the same time.

But I will do it manually then.  Thank you !