Null Value
Learn to handle the absence of values safely in C# by mastering nullable types, null checks, and null-conditional operators to prevent runtime errors.
In C#, we have a special value called null. This value represents the absence of a value. Understanding how to manage this state is essential for writing robust and error-free applications.
The null and reference types
In modern C#, reference types are non-nullable by default. We must explicitly indicate if a variable can hold a null value by adding a ? to the type. This syntax mimics how we handle nullable value types.