Layer UserDictionary cleared when property is changed

@menno wrote:

When I create a layer, set an entry on its user dictionary and change a property (in this case IsVisible) everything is fine. However, if I add the layer, the get it from the layer collection and then change IsVisible, the user dictionary gets cleared.

@dale can you confirm this? I am still on SR10, so it may have been fixed in the mean time.

public Result RunCommand(RhinoDoc doc, RunMode mode)
{
  Layer l = new Layer();
  l.Name = "With User Dictionary Entry";
  //int idx = doc.Layers.Add(l);

  //Layer retrieved = doc.Layers[idx];
  l.UserDictionary.SetEnumValue(mode);
  RhinoApp.WriteLine($"User dictionary has {l.UserDictionary.Count} entries");
  l.IsVisible = false;
  RhinoApp.WriteLine($"User dictionary has {l.UserDictionary.Count} entries");
  l.IsVisible = true;

  int idx = doc.Layers.Add(l);

  Layer retrieved = doc.Layers[idx];
  RhinoApp.WriteLine($"Retrieved user dictionary has {retrieved.UserDictionary.Count} entries");
  retrieved.IsVisible = false;
  // now, in the layer that was obtained from the layers collection, settings IsVisible=false
  // will clear out the user dictionary. This is unexpected behavior.
  RhinoApp.WriteLine($"Retrieved user dictionary has {retrieved.UserDictionary.Count} entries");
  retrieved.IsVisible = true;
  RhinoApp.WriteLine($"Retrieved user dictionary has {retrieved.UserDictionary.Count} entries");


  return Result.Success;

}

Posts: 1

Participants: 1

Read full topic