Tag Archives: .NET Core

by in .NET Core, ASP.NET Core, C#, Dependency Injection

Configuration in ASP.NET Core

With the release of ASP.NET Core, configuration was given a major upgrade. The new options API provides the ability to add configuration sections to the service provider and then inject them using the options interfaces. Unfortunately, I still see people injecting IConfiguration and then manually grabbing values with strings.

by in .NET Core, C#, Entity Framework Core

Many to Many Relationship Entity Framework Core

Working with a many to many relationship in Entity Framework Core has always been one of the harder things for developers new to Entity Framework. This is going to be a short post detailing how to create them and configure the relationship. We’ll also discuss common scenarios when working with them.

by in .NET Core, ASP.NET Core, C#

Why You Should Read the .NET Core Source Code

In the first five years that I was working as a developer I didn’t once bother to read the .NET framework source code. I’m going to go out on a limb and say that this is probably the case for most software developers. We work with the .NET framework and associated tools and libraries every […]

by in .NET Core, ASP.NET Core, C#, Entity Framework Core

Paging in Entity Framework Core

If you’re using Entity Framework Core and building any non-trivial enterprise application then using data tables with paging is almost a certainty. There are two ways to do this: server side and client side. Which one you choose depends on your design and your needs. There are pros and cons associated with both so you […]

by in .NET Core, C#, Entity Framework Core

Query Filters and Automated Audit Columns

I wanted to write a quick post about using query filters and automatically populating audit columns in Entity Framework Core since I see a lot of people doing this manually still. A common scenario in most applications is to do soft deletes on everything, typically with a column like “IsDeleted”. Another common scenario that is […]

by in .NET Core, ASP.NET Core, C#, Dapper, Entity Framework Core

Maximizing Entity Framework Core Query Performance

Entity Framework Core query performance is something that comes up often when working on projects that rely on it heavily. I have often heard that Entity Framework is not performant enough which then leads to everything being written as a stored procedure. Usually this happens for two main reasons: developers aren’t familiar with how to […]

by in .NET Core, ASP.NET Core, C#, IdentityServer4, Security

IdentityServer4 in ASP.NET Core Part 1

If you’ve worked with APIs at all in .NET Core then you have probably had the need to work with tokens for security. You could roll your own set up just using the underlying functionality in ASP.NET Identity, or you could enable easy mode and use something like IdentityServer4. There are other options out there […]

by in .NET Core, ASP.NET Core, Domain Driven Design, Entity Framework Core, Patterns

Think Before You Use The DTO Pattern

Let me preface this blog post by saying that there are still times when a DTO makes sense. Also, this post is written from a .NET perspective, so some things may be different on your platform. What I want to address though is the tendency of many developers to just automatically create a set of […]

by in ASP.NET Core, Domain Driven Design

Dealing with Validation – Domain vs Contextual

I’ve always found validation to be one of the most difficult and tedious aspects of writing enterprise software. No matter how you organize your rules, you are going to usually end up with duplication. To make matters worse, the rules aren’t written by developers, they are created by the business. This causes a disconnect between […]

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