/// <summary> /// Resets any current loading progress. /// </summary> protected override int OnStart(StudyLoaderArgs studyLoaderArgs) { var sopDataSources = new List<ISopDataSource>(GetSopDataSources(studyLoaderArgs.Server, studyLoaderArgs.StudyInstanceUid)); _enumerator = sopDataSources.GetEnumerator(); return sopDataSources.Count; }