Windows Dev Center

UniqueId Class

A unique identifier optimized for Guids.

Namespace:  System.Xml
Assemblies:   System.Runtime.Serialization.Xml (in System.Runtime.Serialization.Xml.dll)
  System.Runtime.Serialization (in System.Runtime.Serialization.dll)

public class UniqueId

The UniqueId type exposes the following members.

  NameDescription
Public methodSupported by Portable Class LibraryUniqueId()Creates a new instance of this class with a new, unique Guid.
Public methodSupported by Portable Class LibraryUniqueId(Byte[])Creates a new instance of this class using a byte array that represents a Guid.
Public methodSupported by Portable Class LibraryUniqueId(Guid)Creates a new instance of this class using a Guid.
Public methodSupported by Portable Class LibraryUniqueId(String)Creates a new instance of this class using a string.
Public methodSupported by Portable Class LibraryUniqueId(Byte[], Int32)Creates a new instance of this class starting from an offset within a byte array that represents a Guid.
Public methodSupported by Portable Class LibraryUniqueId(Char[], Int32, Int32)Creates a new instance of this class starting from an offset within a char using a specified number of entries.
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  NameDescription
Public propertySupported by Portable Class LibraryCharArrayLengthGets the length of the string representation of the UniqueId.
Public propertySupported by Portable Class LibraryIsGuidIndicates whether the UniqueId is a Guid.
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  NameDescription
Public methodSupported by Portable Class LibraryEqualsTests whether an object equals this UniqueId. (Overrides Object.Equals(Object).)
Protected methodSupported by Portable Class LibraryFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodSupported by Portable Class LibraryGetHashCodeCreates a hash-code representation of this UniqueId. (Overrides Object.GetHashCode().)
Public methodSupported by Portable Class LibraryGetTypeGets the Type of the current instance. (Inherited from Object.)
Protected methodSupported by Portable Class LibraryMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodSupported by Portable Class LibraryToCharArrayPuts the UniqueId value into a char array.
Public methodSupported by Portable Class LibraryToStringDisplays the UniqueId value in string format. (Overrides Object.ToString().)
Public methodSupported by Portable Class LibraryTryGetGuid(Guid)Tries to get the value of the UniqueId as a Guid.
Public methodSupported by Portable Class LibraryTryGetGuid(Byte[], Int32)Tries to get the value of the UniqueId as a Guid and store it in the given byte array at the specified offest.
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  NameDescription
Public operatorStatic memberSupported by Portable Class LibraryEqualityOverrides the equality operator to test for equality of two UniqueIds.
Public operatorStatic memberSupported by Portable Class LibraryInequalityOverrides the equality operator to test for inequality of two UniqueIds.
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This class can hold any string value, but has optimizations for dealing with Guids.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone Silverlight 8.1, Windows Phone Silverlight 8

Portable Class Library

Supported in: Portable Class Library

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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