Topic: Editor.SelectAll returns objects on frozen layers?

[Atook]

I use the following function to get all objectIDs with an appname, the problem is, it's returning objects that are on frozen layers, which is not desireable.
Do I need to iterate through all the entities and check if the entities layer is frozen? Maybe there's a better way to do this with selection filters or another method than .SelectAll?

Code - C#: [Select]

1. /// <summary>
2. /// Gets all objectIDs in the drawing with the specified appname written to it's xData.
3. /// </summary>
4. /// <param name="appName">Name of the appName to filter for</param>
5. /// <param name="modelspaceOnly">Only select objects in modelspace</param>
6. /// <returns></returns>
7. public static ObjectIdCollection GetAllObjectIDs(string appName, bool modelspaceOnly = true)
8. {
9.   ObjectIdCollection result = new ObjectIdCollection();
10.   TypedValueList filterArray = new TypedValueList()
11.   {
12.     new TypedValue((int)DxfCode.ExtendedDataRegAppName, appName)
13.   };
14.   if (modelspaceOnly) filterArray.Add(new TypedValue(67, 0));
15.   SelectionFilter appNameFilter = new SelectionFilter(filterArray);
16.   PromptSelectionResult psr =
17.     Active.Editor.SelectAll(appNameFilter);
18.   if (psr.Status == PromptStatus.OK)
19.   {
20.     return new ObjectIdCollection(psr.Value.GetObjectIds());
21.   }
22.   return result;
23. }
24.  

[gile]

Hi,

You can get the forzen layer names to use them in your filter.

Example (not tested)

Code - C#: [Select]

1.         /// <summary>
2.         /// Gets all objectIDs in the drawing with the specified appname written to it's xData.
3.         /// </summary>
4.         /// <param name="appName">Name of the appName to filter for</param>
5.         /// <param name="modelspaceOnly">Only select objects in modelspace</param>
6.         /// <returns></returns>
7.         public static ObjectIdCollection GetAllObjectIDs(string appName, bool modelspaceOnly = true)
8.         {
9.             string frozenLayers;
10.             using (var tr = new OpenCloseTransaction())
11.             {
12.                 var layerTable = (LayerTable)tr.GetObject(Active.Database.LayerTableId, OpenMode.ForRead);
13.                 frozenLayers = string.Join(",",
14.                     layerTable.Cast<ObjectId>()
15.                     .Select(id => (LayerTableRecord)tr.GetObject(id, OpenMode.ForRead))
16.                     .Where(l => l.IsFrozen)
17.                     .Select(l => l.Name));
18.                 tr.Commit();
19.             }
20.             ObjectIdCollection result = new ObjectIdCollection();
21.             TypedValueList filterArray = new TypedValueList()
22.             {
23.                 new TypedValue((int)DxfCode.ExtendedDataRegAppName, appName)
24.             };
25.             if (!string.IsNullOrEmpty(frozenLayers))
26.             {
27.                 filterArray.Add(new TypedValue(-4, "<NOT"));
28.                 filterArray.Add(new TypedValue(8, frozenLayers));
29.                 filterArray.Add(new TypedValue(-4, "NOT>"));
30.             }
31.             if (modelspaceOnly) filterArray.Add(new TypedValue(67, 0));
32.             SelectionFilter appNameFilter = new SelectionFilter(filterArray);
33.             PromptSelectionResult psr = Active.Editor.SelectAll(appNameFilter);
34.             if (psr.Status == PromptStatus.OK)
35.             {
36.                 return new ObjectIdCollection(psr.Value.GetObjectIds());
37.             }
38.             return result;
39.         }

[Atook]

Thanks Gile, much more efficient than what I came up with.

It's always a treat reading your code.

[gile]

You're welcome.