Why is this an issue?
When declaring a Windows Communication Foundation (WCF) OperationContract
method as one-way,
that service method won’t return any result, not even an underlying empty confirmation message. These are fire-and-forget methods that are useful in
event-like communication. Therefore, specifying a return type has no effect and can confuse readers.
Exceptions
The rule doesn’t report if OperationContractAttribute.AsyncPattern
is set to true.
How to fix it
Code examples
Noncompliant code example
<ServiceContract>
Interface IMyService
<OperationContract(IsOneWay:=True)>
Function SomethingHappened(ByVal parameter As Integer) As Integer ' Noncompliant
End Interface
Compliant solution
<ServiceContract>
Interface IMyService
<OperationContract(IsOneWay:=True)>
Sub SomethingHappened(ByVal parameter As Integer)
End Interface
Resources
Documentation
Microsoft Learn - OperationContractAttribute
