Check whether relationship is in site given by id.
            
Namespace: CMS.RelationshipsAssembly: CMS.Relationships (in CMS.Relationships.dll) Version: 8.0.0.0 (8.0.5239.26125)
Parameters
- siteId
 - Type: 
System Int32
ID of site to check 
Return Value
Type:Returns true if relationship name already exists
See Also