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POASP MVC 2 Ninject
 

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  1. POASP MVC 2 Ninject
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    <p>I'm trying to learn a bit about MVC and have come across a problem when using Ninject. I want to bind repositories but keep getting the 'Object reference not set to an instance of an object' error.</p> <p>I have created my NinjectControllerFactory:</p> <pre><code>public class NinjectControllerFactory : DefaultControllerFactory { // A Ninject "kernel" is the thing that can supply object instances private IKernel kernel = new StandardKernel(new SportsShopServices()); // ASP .NET MVC calls this to get the controller for each request protected override IController GetControllerInstance(RequestContext context, Type controllerType) { if (controllerType == null) return null; return (IController) kernel.Get(controllerType); } // Configure how abstract sevice types are mapped to concrete implementations private class SportsShopServices : NinjectModule { public override void Load() { Bind&lt;IProductRepository&gt;().To&lt;SqlProductsRepository&gt;() .WithConstructorArgument("connectionString", ConfigurationManager.ConnectionStrings["AppDb"].ConnectionString); } } } </code></pre> <p>and my controller :</p> <pre><code>public class ProductsController : Controller { private IProductRepository productsRepository; // Constructor used with Ninject public ProductsController(IProductRepository _productsRepository) { this.productsRepository = _productsRepository; } public ViewResult List() { return View(productsRepository.Products.ToList()); } } </code></pre> <p>I have modified the Web.config file to provide the db connection string and the Global.asax file Application_Start() method to include:</p> <pre><code>ControllerBuilder.Current.SetControllerFactory(new NinjectControllerFactory()); </code></pre> <p>I am working on an example from the PRO ASP .NET MVC 2 book but just can't get this work, been trying all day.</p>
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    1. CODid you try re-building? Also, do you have the class "SqlProductsRepository" in your solution?
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    2. COYeah tried rebuilding. SqlProductsRepository is there, its used to build and return a table of products from the database.
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