// C# Extension Method

// Doc: https://csharp-extension.com/en/method/1002572/object-isdbnull

​

// @nuget: Z.ExtensionMethods

​

using System;

public class Program

{

    public static void Main()

    {

        object thisDBNull = DBNull.Value;

        object thisNull = null;

​

        // C# Extension Method: Object - IsDBNull

        bool result1 = thisDBNull.IsDBNull(); // return true;

        bool result2 = thisNull.IsDBNull(); // return false;

​

        Console.WriteLine(result1);

        Console.WriteLine(result2);

    }

}