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KnownTypeAttribute Class

Specifies types that should be recognized by the DataContractSerializer when serializing or deserializing a given type.

System.Object
  System.Attribute
    System.Runtime.Serialization.KnownTypeAttribute

Namespace:  System.Runtime.Serialization
Assembly:  System.Runtime.Serialization (in System.Runtime.Serialization.dll)
[AttributeUsageAttribute(AttributeTargets.Class|AttributeTargets.Struct, Inherited = true, 
	AllowMultiple = true)]
public sealed class KnownTypeAttribute : Attribute

The KnownTypeAttribute type exposes the following members.

  NameDescription
Public methodSupported by Silverlight for Windows PhoneKnownTypeAttribute(String)Initializes a new instance of the KnownTypeAttribute class with the name of a method that returns an IEnumerable of known types.
Public methodSupported by Silverlight for Windows PhoneKnownTypeAttribute(Type)Initializes a new instance of the KnownTypeAttribute class with the specified type.
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  NameDescription
Public propertySupported by Silverlight for Windows PhoneMethodNameGets the name of a method that returns a list of types that should be recognized during serialization or deserialization.
Public propertySupported by Silverlight for Windows PhoneTypeGets the type that should be recognized during serialization or deserialization by the DataContractSerializer.
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  NameDescription
Public methodSupported by Silverlight for Windows PhoneEqualsInfrastructure. Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute.)
Protected methodSupported by Silverlight for Windows PhoneFinalizeAllows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneGetHashCodeReturns the hash code for this instance. (Inherited from Attribute.)
Public methodSupported by Silverlight for Windows PhoneGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneMatchWhen overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute.)
Protected methodSupported by Silverlight for Windows PhoneMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneToStringReturns a string that represents the current object. (Inherited from Object.)
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Apply the KnownTypeAttribute attribute to a type to indicate to the DataContractSerializer the types that should be recognized when serializing or deserializing an instance of the type to which the attribute is applied. This attribute could also be recognized by other serializers that understand data contracts.

NoteNote:

In your code, you can use the word KnownType instead of the longer KnownTypeAttribute.

You can either apply exactly one KnownTypeAttribute instance with the MethodName property set, or one or more KnownTypeAttribute instances with the Type property set.

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
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