Initialising a C# static class won't compile

Published: Thursday 12 October 2023

Static classes work in the same way as classes apart from one fundamental difference. They cannot be initalised.

Essentially, you are not able to use the new operator on a static class.

We have this static CategoryHelper class.

public static class CategoryHelper
{
	public static List<int> GetAllCategoryIds()
	{
		return new List<int>();
	}
}

If we wanted to call the GetAllCategoryIds method, how would we do it?

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

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