SPBuiltInFieldId._Relation Field
Identifies a field that contains the references to related resources.
Namespace: Microsoft.SharePoint
Assembly: Microsoft.SharePoint (in Microsoft.SharePoint.dll)
Available in Sandboxed Solutions: Yes
Available in SharePoint Online
Syntax
'Declaration
Public Shared ReadOnly _Relation As Guid
'Usage
Dim value As Guid
value = SPBuiltInFieldId._Relation
public static readonly Guid _Relation