Question

I can’t remember exactly where I’ve seen this strange `1 (single-tick and the number 1) appearing next to classnames, but it’s shown up when inspecting variable values while debugging and most recently in the answer to this question.

targetClass.BaseTypes.Add(new CodeTypeReference { BaseType = "DataObjectBase`1[Refund]", Options = CodeTypeReferenceOptions.GenericTypeParameter })

I’m curious: where does this come from and why is it there?

Answer 1

It’s a generic type with 1 type parameter.

For example, List<T> is

System.Collections.Generic.List`1

and Dictionary<TKey, TValue> is

System.Collections.Generic.Dictionary`2

This allows generic types to be overloaded by the number of type parameters.