SPRelationshipDeleteBehavior Enumeration

Defines the type of behavior that happens when you delete a parent itemof two related lists.

Namespace:  Microsoft.SharePoint
Assembly:  Microsoft.SharePoint (in Microsoft.SharePoint.dll)
Available in Sandboxed Solutions: Yes
Available in SharePoint Online

[ClientCallableTypeAttribute(Name = "RelationshipDeleteBehaviorType")]
public enum SPRelationshipDeleteBehavior

Member nameDescription
NoneNothing happens when a parent item is deleted and the child item is left pointing to the parent as an orphan.
CascadeA cascade delete happens when deleting a parent item deletes all relatedchildren items of the related list.
RestrictRestricts a parent item having any children items in the related list from being deleted.