// C# Extension Method

// Doc: https://csharp-extension.com/en/method/1002284/decimal-multiply

​

// @nuget: Z.ExtensionMethods

​

using System;

public class Program

{

    const string dataFmt = "{0,-45}{1,31}";

​

    public static void Display(Decimal Left, Decimal Right)

    {

        var strValue = Left + "*" + Right;

        // C# Extension Method: Decimal - Multiply

        Console.WriteLine(dataFmt, strValue, Left.Multiply(Right));

    }

​

    public static void Main()

    {

        // Create pairs of decimal objects.

        Display(1000M, 7M);

        Display(-1000M, 7M);

        Display(new decimal(1230000000, 0, 0, false, 7), 0.0012300M);

        Display(12345678900000000M, 0.0000000012345678M);

        Display(123456789.0123456789M, 123456789.1123456789M);

    }

}