How do I pass a Dictionary as a parameter to an ActionResult method from jQuery/Ajax?

Question

I\'m using jQuery to make an Ajax call using an Http Post in ASP.NET MVC. I would like to be able to pass a Dictionary of values.

The closest thing I could think of

Answer 1

This is an old post but I can't help having a few remarks anyway.

@eu-ge-ne: "DefaultModelBinder is able to bind your POST to array or dictionary." True but at least for dictionaries I find the required form notation rather counterintuitive.

@Chris: Yesterday I had exactly the same problem while trying to post a JavaScript (JSON) dictionary to a controller action method. I worked out a totally different custom model binder that processes generic dictionaries with different type arguments. I have only tested it in MVC 3 and probably had the advantage of an improved framework.

For the details of my experiences and the source code of the custom model binder, please see my blog post at http://buildingwebapps.blogspot.com/2012/01/passing-javascript-json-dictionary-to.html