Last modified: July 15, 2011
Applies to: SharePoint Foundation 2013 | SharePoint Server 2013
An internal ID number used in the database. The GUID element generates a globally unique identifier (GUID) as returned by the Microsoft Component Object Model (COM) function CoCreateGuid.
The following example evaluates a GUID variable and, if it is an empty string, assigns the current GUID to the variable. If it is not an empty string, the value of the GUID variable is returned by default.