A .wsdl file is an XML document written in an XML grammar called Web Services Description Language (WSDL). This file defines how an XML Web service behaves and instructs clients as to how to interact with the service.
You can obtain discovery documents for an XML Web service using the Web Services Discovery Tool (Disco.exe). The .discomap, .disco, .wsdl, and .xsd files produced by this tool can be used as input to Wsdl.exe.
When you use Wsdl.exe to create a proxy class, a single source file is created in the programming language that you specify. In the process of generating the source code for the proxy class, the tool determines the best type to use for objects specified in the service description. In some cases the tool uses a least-common-denominator approach for casting objects to a type. As a result, the generated type in the proxy class might not be what the developer wants or expects. For example, when Wsdl.exe encounters an ArrayList type in a service description, it creates an Object Array in the generated proxy class. To ensure correct object type casts, open the file containing the generated proxy class and change any incorrect object types to the expected object type.Jitendrasoft09, if this helps please login to Mark As Answer. | Alert Moderator