WCF中的字典

Question

I have an WCF service which contains a method that returns a Dictionary.

The generated method in the proxy class returns ArrayOfKeyValueOfstringstringKeyValueOfstringstring array. how can i use this method ?

The contract method :

        [OperationContract]
        Dictionary<string, string> GetESGKeywordQuestion();

In the proxy class i have 

ArrayOfKeyValueOfstringstringKeyValueOfstringstring[] GetESGKeywordQuestion()
{
// code
}

Answer 1

The accepted answer in another similar thread reference to a link telling you how to have Dictionary at the client side in .NET to .NET communication. In other words, poor interoperability if you want your service to be consumed by non-dot-net applications like PHP or Java etc. If you had learned/remember data structure in CS, you know dictionary is implemented through non-linear structure like B-tree, so dictionary is not likely to be included in WSDL because of the complexity and variant. The ArrayOfKeyValueOfstringstringKeyValueOfstringstring structure generated for client is well designed and intended. If you want to see consistency on both side and want interoperability, then don't use Dictionary, instead, use a linear structure such as an array of KeyValuePair.

Answer 2

the generated proxy class seems to be wrong..

Try changing it to return the required Dictionary manually..

Dictionary<string, string> GetESGKeywordQuestion()
{
    //code
}

And this should allow you to use you GetESGKeywordQuestion() method from your WCF service