Type:Nullable`1

A Nullable<T> is a generic value type that can store a null value - normally only possible by reference types.

For more information on how this type functions, see the Microsoft documentation on Nullable<T>

Usage

Use this wherever you need a value variable (for example bool or float), but you also need to track an unset/empty/null state.

See Also

• Wikipedia's definition of nullable types.
• Microsoft's documentation on the nullable value types & nullable reference types.