// C# Extension Method

// Doc: https://csharp-extension.com/en/method/1002455/object-isvaliddatetime

​

// @nuget: Z.ExtensionMethods

​

using System;

public class Program

{

    public static void Main()

    {

        string format = "{0, -30} {1, -15}";

        object [] values = { "-128" , "-89","ABC", "true", "12/31/2018", "a", ".", "0", "10.2m", "4/2/2007 7:23:57 PM -07:00"};

        Console.WriteLine(format, "Object", "Is Valid DateTime");

        Console.WriteLine(format, "------", "-----------------");

        foreach(var val in values)

        {

            // C# Extension Method: Object - IsValidDateTime

            Console.WriteLine(format, val, val.IsValidDateTime());

        }

    }

}