Ninject for binding on different controllers

Question

I am trying to associate two specific classes with one interface. Which command should I use in Ninject for this? What I'm trying to do is associate two specific classes with one interface base on the Name controller. Is it possible? I assume that in ninject you use .When to give a condition, but there is no tutorial where they show you how to use .When for ninject.

Answer 1

Here are some examples. Check out the Ninject project project and its Tests subproject for various usage patterns to get the best documentation for it, especially since the documents are not yet updated for v2.

// usage of WhenClassHas attribute
Bind<IRepository>().To<XmlDefaultRepository>().WhenClassHas<PageAttribute>().WithConstructorArgument("contentType", ContentType.Page);
// usage of WhenInjectedInto
Bind<IRepository>().To<XmlDefaultRepository>().WhenInjectedInto(typeof(ServicesController));
Bind<IRepository>().To<XmlDefaultRepository>().WhenInjectedInto(typeof(PageController)).WithConstructorArgument("contentType", ContentType.Page);
Bind<IRepository>().To<XmlDefaultRepository>().WhenInjectedInto(typeof(WidgetZoneController)).WithConstructorArgument("contentType", ContentType.WidgetZone);
// you can also do this
Bind<IRepository>().To<PageRepository>().WhenInjectedInto(typeof(PageController)).WithConstructorArgument("contentType", ContentType.Page);
Bind<IRepository>().To<WidgetZoneRepository>().WhenInjectedInto(typeof(WidgetZoneController)).WithConstructorArgument("contentType", ContentType.WidgetZone);
// or this if you don't need any parameters to your constructor
Bind<IRepository>().To<PageRepository>().WhenInjectedInto(typeof(PageController));
Bind<IRepository>().To<WidgetZoneRepository>().WhenInjectedInto(typeof(WidgetZoneController));
// usage of ToMethod()  
Bind<HttpContextBase>().ToMethod(context => new HttpContextWrapper(HttpContext.Current));