Here's an odd one:

I have a content type derived from SPFolder, that I am creating through code. As part of the creation process, I am trying to set the "Created By" information to be the user who should be attributed as the creator of the folder. I'm using the following code:

// after setting some other field values:

SPFieldUserValue userValue = new SPFieldUserValue(web, user.ID, user.LoginName);
folderItem[SPBuiltInFieldId.Author] = userValue;
folderItem[SPBuiltInFieldId.Created_x0020_By] = userValue;

Now, if I go in with Powershell or SharePoint Manager, I can see that in the folder's properties and in the folder's item's properties, the value of vti_author and display_urn:schemas-microsoft-com:office:office#Author is the correct user value, and the only place I can find SHAREPOINT\system is in vti_modifiedby.

However, when I go and view properties of the folder (through the SharePoint UI), in the view form, the System Account is listed for both created by and modified by. And, if I add "Created By" to the list view, it's all System Account there too.

So where is SharePoint pulling that from? What other mystery field do I need to set to get my user as the Created By person?

  • Have you tried setting the Author field to just an SPUser object. I have done this before and that worked. – spevilgenius Apr 5 '14 at 9:58
  • @spevilgenius, thanks for the suggestion, but that did not work. Using an SPUser object still ends up showing created by System Account in both view form and list view. – Dylan Cristy Apr 7 '14 at 14:18
  • 2
    Impersonate as that user and create folder under his account. That should do the trick. Code sample:sharepointdeveloperhq.com/2009/04/… – luccio Apr 11 '14 at 8:14

If you want to manipulate the system properties (author, editor, ...) you'll have to use SPListItem.UpdateOverwriteVersion()

SPListItem item = ...; 
item["Created By"] = web.EnsureUser("luisb").ID; 
item["Modified By"] = item["Modified By"]; 
item["Created"] = DateTime.Now.AddYears(-3); 
item["Modified"] = DateTime.Parse("01/01/2000"); 

See this post: http://www.sharepointblogs.be/blogs/vandest/archive/2009/04/13/sharepoint-2007-update-system-properties-created-created-by-modified-modified-by.aspx

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