Iris vs CodeBehind

Iris is a "batteries included" web framework, which means that a lot of features already come out of the box. This way you don't have to spend time and find third-party libraries to integrate to the framework for most of the tasks you need to complete.

Efficiency by using a light engine.

If you're familiar with expressjs or other modern web frameworks, Iris will make you feel at home.

More than 250 examples for implementing web application.

Most issues are questions, few bug reports and if a bug is found it's quickly patched.

Iris is a good framework for big projects and the author helps solving problems.

CodeBehind is a modern framework with revolutionary ideas.

Code-Behind pattern will be fully respected.

Your project will still be under ASP.NET Core and you will benefit from all the benefits of .NET Core.

You can call the output of the aspx page in another aspx page and modify its output.

It is modular. Just copy the new project files, including dll and aspx, into the current active project.

Developing with CodeBehind is very simple. You can use mvc pattern or model-view or controller-view or only view.

The CodeBehind framework is faster than the default structure of cshtml pages in ASP.NET Core.