You can mark a property with this attribute if it should cause its parent property to be updated when updated itself. The NotifyParent property determines whether the parent should be notified. For example, the System.Drawing.Size type has two child properties, Width and Height . If either of these properties is updated, the parent should be updated. public sealed class NotifyParentPropertyAttribute : Attribute { // Public Constructors public NotifyParentPropertyAttribute (bool notifyParent ); // Public Static Fields public static readonly NotifyParentPropertyAttribute Default ; // =System.ComponentModel.NotifyParentPropertyAttribute public static readonly NotifyParentPropertyAttribute No ; // =System.ComponentModel.NotifyParentPropertyAttribute public static readonly NotifyParentPropertyAttribute Yes ; // =System.ComponentModel.NotifyParentPropertyAttribute // Public Instance Properties public bool NotifyParent {get; } // Public Instance Methods public override bool Equals (object obj ); // overrides Attribute public override int GetHashCode (); // overrides Attribute public override bool IsDefaultAttribute (); // overrides Attribute } HierarchySystem.Object System.Attribute NotifyParentPropertyAttribute Valid OnProperty |