Instantiate DataContract in javascript when using WCF service with ScriptService

Question

I have a simple WCF service that I'm exposing using a .svc. The service has some related DataContract classes that are used with the ServiceContracts. When calling a method that gets some data, the json that comes back has all the properties just as you'd expect. My question is how can I get a new instance of one of these DataContract objects in javascript. // what I'd like to be able to do in javascript var myInstance = new MyNamespace.MyDataContractClassName(); myInstance.someProperty = "Prop Value"; JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

If you browse to ./Service1.svc/js you can see the exact client proxy script that is generated by the server. At the end of this file you should see lines that register your data contract types as client types - this just makes them available in the client type system and lets you call a well-known constructor, but it doesn't actually code their properties, because you can set any arbitrary properties on any object in JavaScript. The code you have actually written is therefore correct, assuming that the namespace and class declaration matches what is in the proxy code, but you can verify that yourself.