// C# Extension Method

// Doc: https://csharp-extension.com/en/method/1002508/object-tonullabledecimal

​

// @nuget: Z.ExtensionMethods

​

using System;

public class Program

{

    public static void Main()

    {

        object[] values = { true, null, 'a', 123, 1.764e32, "9.78", "1e-02",

                1.67e03, "A100", "1,033.67", DateTime.Now, Double.MaxValue };

​

        foreach (object value in values)

        {

            try

            {

                //C# Extension Method: Object - ToNullableDecimal

                decimal? result = value.ToNullableDecimal();

                Console.WriteLine("Converted the {0} value {1} to {2}.",

                                  value == null ? "null" : value.GetType().Name, 

                                  value == null ? "null" : value, 

                                  result == null ? "null" : result.ToString());

            }

            catch (OverflowException)

            {

                Console.WriteLine("The {0} value {1} is out of range of the Decimal type.",

                                  value == null ? "null" : value.GetType().Name, value);

            }

            catch (FormatException)

            {

                Console.WriteLine("The {0} value {1} is not recognized as a valid Decimal value.",

                                  value == null ? "null" : value.GetType().Name, value);

            }

            catch (InvalidCastException)

            {

                Console.WriteLine("Conversion of the {0} value {1} to a Decimal is not supported.",

                                  value == null ? "null" : value.GetType().Name, value);

            }

        }

    }

}