Apr 8, 2023 · A nullable value type T? represents all values of its underlying value type T and an additional null value. For example, you can assign any of the following three values to a bool? …

Nullable types are a feature of some programming languages which allow a value to be set to the special value NULL instead of the usual possible values of the data type.

Sep 6, 2025 · Suppose, in a table a column required null values, then you can use nullable type to enter null values. Nullable type is also useful to represent undefined value.

A nullable type can represent the correct range of values for its underlying value type, plus an additional null value. For example, Nullable<int> can be assigned any value from -2147483648 …

Jan 9, 2025 · Learn what nullable types are, why they are useful, and how to use them in languages like Python, JavaScript, and C#. Includes examples and best practices.

Jun 30, 2025 · A nullable value is a variable that can either hold a value or represent no value at all— null. This is particularly useful in scenarios where a piece of data might not always be …

Nullable objects always come from a base data type, e.g. an integer as in the previous examples. While these data types may have a default value, the default value of a nullable is always null.

This is where nullable types come into play. In this guide, we’ll explore nullable types in C#, their syntax, use cases, and best practices with extensive examples.

Jan 8, 2024 · A type is said to be nullable if it can be assigned a value or can be assigned null, which means the type has no value whatsoever. By default, all reference types, such as …

The nullable type allows us to assign null to the variable. In this tutorial, you will learn about the C# Nullable Types with the help of examples.