Custom Content Type on Documents SharePoint 2010

Question

I'm trying to attach a custom content type to Document Library so that it's available to users whenever they upload a new document, they'll have the necessary columns visible. I'm struggling to staple this onto SharePoint 2010 and cannot really find a solution to this online.

Answer 1

You can attach a contenttype to a list in a feature:

• Get a reference to the list
• Check if the list accepts contenttypes
• Add the contenttype

And in code:

SPList list = web.Lists["your list"];
list.AllowContentTypes = true;
SPContentType ct = web.AvailableContentTypes["your contenttype"];
list.ContentTypes.Add(ct);

This isn't production code, please add some checks and exception handling.