Nullable Reference Types in C#

Nullable Reference Types in C# — a practical guide to C# nullable reference types with clear examples you can reuse in real projects.

C# Tutorial Series (86/121). Prefer one article? Read the complete C# tutorial.

Short description

Treat warnings seriously — they prevent NullReferenceExceptions.

NRT tip

#nullable enable
string name = "Asha"; // non-null
string? nickname = null;