This documentation is archived and is not being maintained.

DataMemberAttribute.IsRequired Property

Gets or sets a value that instructs the serialization engine that the member must be present when reading or deserializing.

Namespace:  System.Runtime.Serialization
Assembly:  System.Runtime.Serialization (in System.Runtime.Serialization.dll)

public bool IsRequired { get; set; }

Property Value

Type: System.Boolean
true, if the member is required; otherwise, false.

ExceptionCondition
SerializationException

the member is not present.

The property is used for ensuring compatibility with future versions of a type. For more information, see Data Contract Versioning and Best Practices: Data Contract Versioning.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0
Show: