Andrew Lock | .NET Escapades

Andrew Lock
Dependency Injection

  1. Controller activation and dependency injection in ASP.NET Core MVC

    In my last post about disposing IDsiposables in ASP.NET Core, Mark Rendle pointed out that MVC controllers are also disposed at the end of a request. On first glance, this may seem obvious given that scoped resources are disposed at the end of a request, but MVC controllers are…
    on ASP.NET Core Dependency Injection - Comments

  2. Four ways to dispose IDisposables in ASP.NET Core

    One of the most commonly implemented interfaces in .NET is the IDisposable interface. Classes implement IDisposable when they contain references to unmanaged resources, such as window handles, files or sockets. The garbage collector automatically releases memory for managed (i.e. .NET) objects, but it doesn't know about how to handle…
    on ASP.NET Core Dependency Injection - Comments

  3. Using dependency injection in a .Net Core console application

    One of the key features of ASP.NET Core is baked in dependency injection. There may be various disagreements on the way that is implemented, but in general encouraging a good practice by default seems like a win to me. Whether you choose to use the built in container or…
    on Dependency Injection .NET Core - Comments

  4. Accessing services when configuring MvcOptions in ASP.NET Core

    This post is a follow on to an article by Steve Gordon I read the other day on how to HTML encode deserialized JSON content from a request body. It's an interesting post, but it spurred me thinking about a tangential issue - using injected services when configuring MvcOptions. The…
    on ASP.NET Core Configuration Dependency Injection - Comments

  5. Injecting services into ValidationAttributes in ASP.NET Core

    I was battling the other day writing a custom DataAnnotations ValidationAttribute, where I needed access to a service class to perform the validation. The documentation on creating custom attributes is excellent, covering both server side and client side validation, but it doesn't mention this, presumably relatively common, requirement. This post…
    on ASP.NET Core Dependency Injection - Comments

  6. Configuring environment specific services in ASP.NET Core - Part 2

    In my previous post, I showed how you could configure different services for dependency injection depending on the current hosting environment, i.e. whether you are currently running in Development or Production. The approach I demonstrated required storing the IHostingEnvironment variable passed to the constructor of your Startup class, for…
    on ASP.NET Core Dependency Injection Environment - Comments