C# Get sub-layer objects from external rhino file

@shaunwu25 wrote:

Hi all,

I am trying to use c# script to access an external rhino file in my local document folder.
The question is I cannot retrieve the objects if it is located at the sub-layers.

I am mainly using file.Objects.FindByLayer to access the layer.
I saw it is also possible to access by file.AllLayers.FindName(“sub-layer02”, GUID parentId);, but I am having difficulty to find the Guid parentId.

Here is the code:
> string folder = @“C:\Users\Shaun Wu\Documents”;

Rhino.FileIO.File3dm file = null;

if (Directory.Exists(folder))
{
  var files = Directory.GetFiles(folder, "*.3dm");
  file = Rhino.FileIO.File3dm.Read(files[0]);
}

A = file;
B = file.Objects.FindByLayer("Layer01");
C = file.Objects.FindByLayer("Layer02");;
D = file.Objects.FindByLayer("sub-layer02");

//file.AllLayers.FindName("sub-layer02", GUID parentId);

LayerExample.3dm (41.8 KB) example.gh (5.5 KB)

example1463×695 110 KB

layerexample1365×651 36.1 KB

Thanks for the help.
Shaun

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