Gets or sets a value that instructs the serialization engine that the member must be present when reading or deserializing.
Public Property IsRequired As Boolean
Type: System.Booleantrue, if the member is required; otherwise, false.
Supported in: 4.6, 4.5, 4, 3.5, 3.0
.NET Framework Client Profile
Supported in: 4, 3.5 SP1
Portable Class Library
Supported in: Portable Class Library
Supported in: Windows Phone 8.1
Supported in: Windows Phone Silverlight 8.1
Supported in: Windows Phone Silverlight 8