This simple enumeration that describes the change that has occurred within an XmlDocument instance can be one of the following: Change , which indicates that a node within the document has changed in some way; Insert , which indicates that a node has been inserted into the document; or Remove , which indicates that a node has been removed. This is one of the properties specified in the XmlNodeChangedEventArgs parameter to the XmlNodeChangedEventHandler delegate instance registered with the XmlDocument . public enum XmlNodeChangedAction { Insert = 0 , Remove = 1 , Change = 2 } HierarchySystem.Object System.ValueType System.Enum(System.IComparable , System.IFormattable , System.IConvertible) XmlNodeChangedAction Returned ByXmlNodeChangedEventArgs.Action |