How to Use the Null Coalescing Operator (??) in C# ?

Published on April 6, 2014 by abundantcode

Filed under C#

Last modified April 6, 2014

Print this page

rate 1 star rate 2 star rate 3 star rate 4 star rate 5 star
Your rating: none, Average: 0 (0 votes)

This article have been viewed 6980 times

There are times when you simply want to check if the value is null and perform some steps based on the condition . The Null Coalescing Operator (??) can help you achieve this.

How to Use the Null Coalescing Operator (??) in C# ?

Below is a sample code that uses Null Coalescing Operator (??) in C# to find if the vaklue is null . If it is null , then a value of -1 is assigned .

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ACSampleCode
{
    class Program
    {
        static void Main(string[] args)
        {
            int ? input = null;
            int retValue = input ?? -1;
            Console.WriteLine(retValue);
            Console.ReadLine();
        }
    }

}

1

If you enjoyed this post, please consider leaving a comment or subscribing to the RSS feed to have future articles delivered to your feed reader.

Leave a Comment


x

You might be Interested in these Posts

C# and Lambda - Finding all the elements of an integer array less than 35

Here's a sample code snippet demonstrating how to find all the elements of an integer array that is ...

C# and LINQ - Finding all the elements of an integer array less than 35

Here's a sample code snippet demonstrating how to find all the elements of an integer array that is ...

How to get the CommandLine of the Current Application in C# ?

You might need to get the information that contains the commandline which is used to execute the cur...