// C# Extension Method

// Doc: https://csharp-extension.com/en/method/1002248/datetime-inrange

​

// @nuget: Z.ExtensionMethods

​

using System;

using System.Globalization;

​

public class Program

{

    public static void Main()

    {

        DateTime searchDate = DateTime.Now;

        DateTime minDate = new DateTime(2018, 12, 25);

        DateTime maxDate = new DateTime(2019, 2, 28);

​

        // C# Extension Method: DateTime - InRange

        if(searchDate.InRange(minDate, maxDate))

        {

            Console.WriteLine("{0} is in range [{1} --- {2}]", searchDate, minDate, maxDate);

        }

        else

        {

            Console.WriteLine("{0} is not in range [{1} --- {2}]", searchDate, minDate, maxDate);

        }

    }

}