Returns versions select query for the given tree provider.
            
Namespace: CMS.DocumentEngineAssembly: CMS.DocumentEngine (in CMS.DocumentEngine.dll) Version: 8.0.0.0 (8.0.5239.26125)
Parameters
- tree
 - Type: CMS.DocumentEngine TreeProvider
Tree provider 
- classNames
 - Type: 
System String
Class names - if null, default document query is returned. 
Return Value
Type:See Also