List<DocumentFolder> GetSourceDocumentFolders(
	Guid qdsID,
	DocumentFolderScope scope
)

Function GetSourceDocumentFolders ( 
	qdsID As Guid,
	scope As DocumentFolderScope
) As List(Of DocumentFolder)

using System;
using System.Collections.Generic;
using System.Linq;
using QMSAPI;

class Program
{
    static void Main(string[] args)
    {
        try
        {
            // create a QMS API client
            IQMS apiClient = new QMSClient();

            //retrieve a time limited service key
            ServiceKeyClientMessageInspector.ServiceKey = apiClient.GetTimeLimitedServiceKey();

            // get a list of QDS services
            List<ServiceInfo> qdsServices = apiClient.GetServices(ServiceTypes.QlikViewDistributionService);
            if (qdsServices.Count > 0)
            {
                // retrieve all source document folders for the first QDS in the list
                Console.WriteLine("The " + qdsServices[0].Name
                    + " contains has following source document file structure:" + Environment.NewLine);
                List<DocumentFolder> sourceDocumentsFolders = apiClient.GetSourceDocumentFolders(qdsServices[0].ID,
                    DocumentFolderScope.General | DocumentFolderScope.Services);
                // loop through all source document folders
                foreach (DocumentFolder sourceDocumentFolder in sourceDocumentsFolders.OrderBy(x => x.General.Path))
                {
                    // print the names of all source document folders, prefix with [R] for root folders
                    Console.WriteLine("[R] " + sourceDocumentFolder.General.Path);
                    // print all sub nodes of the current source document folder
                    PrintSourceDocumentNodes(apiClient, sourceDocumentFolder, string.Empty, 1);
                }
            }
        }
        catch (Exception ex)
        {
            Console.WriteLine("An exception occurred: " + ex.Message);
        }
        // wait for user to press any key
        Console.ReadKey();
    }

    static void PrintSourceDocumentNodes(IQMS apiClient, DocumentFolder sourceDocumentFolder,
        string relativePath, int indentationDepth)
    {
        // retrieve all source document nodes of the given folder and under the specified relative path
        List<DocumentNode> sourceDocumentNodes = apiClient.GetSourceDocumentNodes(sourceDocumentFolder.Services.QDSID,
            sourceDocumentFolder.ID, relativePath);
        // loop through all current source document nodes
        foreach (DocumentNode sourceDocumentNode in sourceDocumentNodes
            .OrderByDescending(x => x.IsSubFolder).ThenBy(x => x.Name))
        {
            // print the names of all source document nodes, indent and
            // prefix with [F] for folders and [D] for documents
            string indentation = new string(' ', indentationDepth * 3);
            string nodePrefix = (sourceDocumentNode.IsSubFolder ? "[F]" : "[D]");
            Console.WriteLine(indentation + nodePrefix + " " + sourceDocumentNode.Name);
            // print all sub nodes of the current source document node if it represents a folder
            if (sourceDocumentNode.IsSubFolder)
            {
                PrintSourceDocumentNodes(apiClient, sourceDocumentFolder,
                    relativePath + "\\" + sourceDocumentNode.Name, indentationDepth + 1);
            }
        }
    }
}