You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. The service will contain an enumeration named OrderState. The OrderState enumeration will contain the following four values:
Processing
Cancelled
Confirmed
Closed
The client application must be able to set the state of an Order entity to only the following two values:
Cancelled
Closed
You need to create the data contract for OrderState. Which code segment should you use?
A.
[DataContract]
public enum OrderState
{
Processing=1,
[DataMember]
Cancelled=2,
[DataMember]
Confirmed=3,
Closed=4
}
B.
[DataContract]
public enum OrderState
{
Processing=1,
[EnumMember]
Cancelled=2,
Confirmed=3,
[EnumMember]
Closed=4
}
C.
[DataContract]
public enum OrderState
{
[EnumMember(Value=”False”)]
Processing=1,
[EnumMember(Value=”True”)]
Cancelled=2,
[EnumMember(Value=”True”)]
Confirmed=3,
[EnumMember(Value=”False”)]
Closed=4
}
D.
[DataContract]
public enum OrderState
{
[DataMember]
Processing=1,
[DataMember(IsRequired=true)]
Cancelled=2,
[DataMember]
Confirmed=3,
[DataMember(IsRequired=true)]
Closed=4
}