private void FillMetadataFiles(MetadataFileCollection fileCollection, Guid[] metadataFileIDs)
		{
			if (Project == null) return;

			foreach (Guid guid in metadataFileIDs) {
				MetadataFile file = Project.MetadataFiles.GetMetadataFile(guid);
				if (file != null) {
					fileCollection.Add(file);
				}
			}
		}