I've used ExtJS with ASP.NET MVC for a few years, and it was quite nice. Just have the controller functions return JSON serialized data instead of a regular vie

I've used ExtJS with ASP.NET MVC for a few years, and it was quite nice. Just have the controller functions return JSON serialized data instead of a regular view. If decoupling the UI from the server side portion of the app isn't a concern you can also use Ext.Direct, which will allow you to call your server side controller methods from JavaScript by just doing: ControllerName.FunctionName(arg0, arg1, callbackFn);