Identify a Preinstalled Content Type

Question

Does anyone know of a fast way to tell through code if a ContentType is one that's a pre-installed one?

Conversely, I want to know if a given ContentType was provisioned by a custom feature / generated by the user through the WebUI.

Sure, there are short ContentTypeIds (like 0x0102) and long ones (0x0100<flattened guid>), but is there any other way?

I'm asking for any version, 2007 or 2010.

gandjustas · Accepted Answer · 2011-04-14 15:25:35Z

up vote 2 down vote accepted

answered Apr 14 '11 at 15:25

gandjustas
98556

That uses SPBuiltInFieldId, but there is a similar concept for built in ContentTypeIds, details here: msdn.microsoft.com/en-us/library/…. Cheers! – James Love Apr 14 '11 at 15:56

Abe Miessler · Answer 2 · 2011-04-14 17:00:54Z

up vote 1 down vote

Try this:

SPContentType ct;
//set your content type
bool builtIn = SPBuiltInContentTypeId.Contains(ct.Id);

answered Apr 14 '11 at 17:00

Abe Miessler
2,6362066

Yup, pretty much inferred from the link posted by @gandjustas, but that's the approach I'll try. – James Love Apr 14 '11 at 17:41

2 Answers