System.ServiceModel 4.0.0.0 System.Collections.ObjectModel.KeyedCollection<System.Xml.XmlQualifiedName,System.ServiceModel.Description.MessageHeaderDescription> System.Xml.XmlQualifiedName System.ServiceModel.Description.MessageHeaderDescription Typically this collection is returned from the property and enables you to find, insert, and remove various objects.

Represents a collection of objects.

Method 4.0.0.0 System.Xml.XmlQualifiedName To be added.

When called by a derived class, returns the of the message header.

The of the message header. The to locate.