"The creator of this fault did not specify a Reason" Exception

Michael_Kniskern_26327 0
Viewed 67044

I have the following code in WCF service to throw a custom fault based on certain situations. I am getting a "The creator of this fault did not specify a Reason" exception. What am I doing wrong?

//source code
if(!DidItPass)
{
    InvalidRoutingCodeFault fault = new InvalidRoutingCodeFault("Invalid Routing Code - No Approval Started");
    throw new FaultException<InvalidRoutingCodeFault>(fault);
}

//operation contract
[OperationContract]
[FaultContract(typeof(InvalidRoutingCodeFault))]
bool MyMethod();

//data contract
[DataContract(Namespace="http://myuri.org/Simple")]
public class InvalidRoutingCodeFault
{
    private string m_ErrorMessage = string.Empty;

    public InvalidRoutingCodeFault(string message)
    {
        this.m_ErrorMessage = message;
    }

    [DataMember]
    public string ErrorMessage
    {
        get { return this.m_ErrorMessage; }
        set { this.m_ErrorMessage = value; }
    }
}
faults wcf .net c#
10 Answers

After some addtional research, the following modified code worked:

if(!DidItPass)
{    
    InvalidRoutingCodeFault fault = new InvalidRoutingCodeFault("Invalid Routing Code - No Approval Started");    
    throw new FaultException<InvalidRoutingCodeFault>(fault, new FaultReason("Invalid Routing Code - No Approval Started"));
}
Michael_Kniskern_263270 
serviceDebug includeExceptionDetailInFaults="true"

is NOT the solution

The following code works even with serviceDebug includeExceptionDetailInFaults="false" 

// data contract 

[DataContract]
public class FormatFault
{
    private string additionalDetails;

    [DataMember]
    public string AdditionalDetails
    {
        get { return additionalDetails; }
        set { additionalDetails = value; }
    }
}

// interface method declaration

    [OperationContract]
    [FaultContract(typeof(FormatFault))]
    void DoWork2();

// service method implementation

    public void DoWork2()
    {
        try
        {
            int i = int.Parse("Abcd");
        }
        catch (FormatException ex)
        {
            FormatFault fault = new FormatFault();
            fault.AdditionalDetails = ex.Message;
            throw new FaultException<FormatFault>(fault);
        }
    }

// client calling code

    private static void InvokeWCF2()
    {
        ServiceClient service = new ServiceClient();

        try
        {
            service.DoWork2();
        }
        catch (FaultException<FormatFault> e)
        {
            // This is a strongly typed try catch instead of the weakly typed where we need to do -- if (e.Code.Name == "Format_Error")
            Console.WriteLine("Handling format exception: " + e.Detail.AdditionalDetails);   
        }
    }

There is no need to add fault reason if its not required. Just make sure the FaultContract attribute is correct

user_392890

One can also encounter this exception if one does not specify the FaultContract(typeof(className)) attribute for the method

user_392890

You might try this in the server config (behaviors -> serviceBehaviors -> behavior):

<serviceDebug includeExceptionDetailInFaults="true" />
Chris_Porter_134950

By using strongly typed try catch, I was able get around with the error "The creator of this fault did not specify a Reason".

Admin1
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