Working with SharePoint 2010 Document Sets using SharePoint Object Model

In SharePoint 2010 we can create Document Sets in a Document Library. Learn more about Document Set @ Document Sets in Sharepoint and Customizing the Document Set

A DocSet is basically an SPListItem which is actually a folder. To work with Document Sets we need to add the reference for the following Namespaces:

• Microsoft.Office
• Microsoft.Office.DocumentManagement
• Microsoft.Office.DocumentManagement.DocumentSets

These dlls are available inside C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\ISAPI\
Now we will get all the documents sets in a document library using SharePoint Object Model. We will check each item in the document library to verify if it is a Document Set & if it is a document set we will get its property. We will find the Welcome Page URL, the name of the each document set, items inside a Document Set, and the fields shown in the Document Set Welcome Page.

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Text; 
using Microsoft.Office; 
using Microsoft.Office.DocumentManagement; 
using Microsoft.Office.DocumentManagement.DocumentSets; 
using Microsoft.SharePoint; 
using Microsoft.SharePoint.Portal; 
using Microsoft.SharePoint.Administration; 

namespace GettingDocSetsWithObjectModel 
{ 
    class DocSetDetails 
    { 
        static void Main(string[] args) 
        { 
             if (SPFarm.Local != null) 
                { 
                    SPSite oSiteColl = new SPSite("http://SiteCollectionURL"); 
                    SPWeb oWeb = oSiteColl.OpenWeb(); 
                    SPFolder oFolder = oWeb.Folders["http://SiteCollectionURL/DocLibrary"]; 
                    SPDocumentLibrary oDocLib = oFolder.DocumentLibrary; 
                    foreach (SPListItem oItem in oDocLib.Items) 
                    { 
                        if (oItem.Folder != null) 
                        { 
                            DocumentSet oDocSet = DocumentSet.GetDocumentSet(oItem.Folder); 
                            if (oDocSet != null) 
                            { 
                                SPListItem oSpItem = oDocSet.Item; 
                                //This will get the Document Set Name 
                Console.WriteLine("Docset Name: {0}", oSpItem["Name"].ToString()); 
                //This will get the detail who has created the Document Set. 
                                Console.WriteLine("Created By: {0}", oSpItem["Created By"].ToString()); 
                                //This will show the Document Set Welcome Page. 
                Console.WriteLine("WelcomePageUrl: {0}", oDocSet.WelcomePageUrl); 
                                //This will show the number of items in the document set. 
                Console.WriteLine("ItemCount: {0}", oDocSet.Folder.ItemCount); 
                                //This will show the fields which are getting displayed in the Welcome page. 
                Console.WriteLine("Welcomepage Fields:"); 
                                DocumentSetTemplate template = oDocSet.ContentTypeTemplate; 
                                WelcomePageFieldCollection fields = template.WelcomePageFields; 
                                foreach (SPField field in fields) 
                                { 
                                    Console.WriteLine("{0}", field.Title); 

                                } 
                                Console.Read(); 
                            } } } } } } }