Like all the attributes in this namespace, the XmlFormatExtensionPointAttribute is applied to the custom System.Web.Services.Description.ServiceDescriptionFormatExtension class. Use this attribute to specify that a member of the custom format extension class should have its own custom format extension associated with it. MemberName specifies the member of the format extension class (as a string) that has its own format extension. AllowElements is True (the default) if the member of the class implementing the format extension can accept raw XML elements.
public sealed class XmlFormatExtensionPointAttribute : Attribute { // Public Constructors public XmlFormatExtensionPointAttribute(string memberName); // Public Instance Properties public bool AllowElements{set; get; } public string MemberName{set; get; } }