SharePoint 2010: How to map documentset attibutes to objects - In SharePoint Webpart

Question

Hey,
I guess it's a pretty simple question but I really do not get one inch closer to a solution. I'm working on a WebPart on SharePoint 2010 which manages a documentset (document library with an custom content type). Creating an storing of documentssets works fine
by now but I do have problems in mapping the stored sets to my c# objects backwards. I actually do not find the fields in my object structure while debugging my code
I create the docuemtset like this...
internal DocumentSet CreateDocumentSet(SPList spListObject, SPContentType spContentType, object itemToCreate, Type typeOfItemToCreate)
var properties = new Hashtable();
Guid id = Guid.NewGuid();
//Description
foreach (PropertyInfo p in typeOfItemToCreate.GetProperties())
properties.Add(p.Name, p.GetValue(itemToCreate, null));
SPFolder parentFolder = spListObject.RootFolder;
DocumentSet docSet = DocumentSet.Create(parentFolder, InnovationListName + "_" + id, spContentType.Id, properties, false);
return docSet;
I'm thinking of somethink like this ...
internal MyObject DocSetToObject(SPList list, int ID)
var docset = DocumentSet.GetDocumentSet(list.GetItemById(ID).Folder);
return new MyObject
Text= docset...,
Id = docset...,
Tags= docset...,
Title = docset...,
Hope you can help me out.. This problem is killn me  ^^ ;-)
Thanks
Spanky

Answer 1

Hi,
According to your description, you might want to create a class to perform the CRUD operations against a DocumentSet in your library.
Here is a demo about how to handle an item for your reference:
//Create a MyItemWrapper.cs:
public class MyItemWrapper
public int ID { get; set; }
public string Title { get; set; }
SPList list;
SPListItem item;
public MyItemWrapper()
using (SPSite site = new SPSite("http://sp"))
using (SPWeb web = site.RootWeb)
list = web.Lists["List2"];
item = list.Items[0];
this.ID = item.ID;
this.Title = item["Title"].ToString();
public void setTitle(string t)
item["Title"] = t;
item.Update();
this.Title = t;
Feel free to reply if this is not what you want.
Best regards
Patrick Liang
TechNet Community Support