Need help for nullable in C#

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C#

C#4.0

Hello Friends,

I have a WCF application its exposed interface has a method like

GetAllStatus(string userName, string password, Status[] status)

here Status is some enum value

It is working fine when Access by Soap UI

<tem:status>
            <!--Zero or more repetitions:-->
            <test:Status>CancelledByUser</test:Status>
             <test:Status>Confirmed</test:Status>
</tem:status>

Now when i make it

<tem:status>
             <test:Status></test:Status>
</tem:status>

It trows formatter exception.

i tried to modify the method signature by "Status?[]" like this but when i does this it wont hold any parameter even we supply them

Please advise