.NET coding challenges

Using data annotations for Web API model validation

This .NET coding challenge tests how to use data annotations for model validation in an ASP.NET Core Web API endpoint by assigning them to model properties.

Adding services to dependency injection in ASP.NET Core

You can add services to dependency injection in ASP.NET Core. This .NET coding challenge tests adding a service lifetime to a service.

Using the Route attribute in an ASP.NET Core Web API

Learn how to use the Route attribute in an ASP.NET Core Web API controller with our C# coding challenge

Dependency injection circular dependency dangers in .NET

Take our ASP.NET Core coding challenge where we explore the circular dependency dangers with the IoC container in dependency injection.

Using a partial class in C#

Take our C# coding challenge where we add the partial keyword so we can add two identical class names without any compile errors.

Configuring an appsettings.json environment

Take our ASP.NET Core coding challenge that will configure an appsettings.json environment variable to Production.

Using the yield statement in C#

This C# coding challenge looks at the yield statement and how to use it in a collection like a list or an array.

Using an interface in C#

This C# coding challenge looks at how an interface works in C# and why an inherited class won't compile.

Using the abstract modifier in C#

This C# coding challenge looks at how the abstract modifier works in C# and why an inherited abstract class won't compile.

Inject services with different lifetimes with .NET

Take our .NET coding challenge to use ASP.NET Core dependency injection to inject services with different lifetimes.