using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine(DataTypeConverter.BSDobule("10,5"));

    }

}

​

public static class DataTypeConverter

    { 

        public static DateTime minDate = BSDateTime("01/01/1900");

        public static string BSString(this object obj)

        {

            string value = !string.IsNullOrEmpty(Convert.ToString(obj)) ? obj.ToString() : "";

            return value;

        }

​

        public static bool BSBoolean(this object obj)

        {

            try

            {

                return obj.BSString() == "1" || Convert.ToBoolean(obj);

            }

            catch

            {

                return false;

            }

        }

​

        public static long BSLong(this object obj)

        {

            long value = long.TryParse(obj.BSString(), out value) ? value : 0;

            return value;

        }

​

        public static int BSInt(this object obj)

        {

            int value = int.TryParse(obj.BSString(), out value) ? value : 0;

            return value;

        }

​

        public static short BSShort(this object obj)

        {

            short value = (short)(short.TryParse(obj.BSString(), out value) ? value : 0);

            return value;

        }

​

        public static decimal BSDecimal(this object obj)

        {

            decimal value = decimal.TryParse(obj.BSString().Replace('.', ','), out value) ? value : decimal.Zero;

            return value;

        }

​

        /// <summary>

        /// Verilen herhangi bir tipteki

        /// </summary>

        /// <param name="obj"></param>

        /// <returns></returns>

        public static double BSDouble(this object obj)

        {

            double value = double.TryParse(obj.BSString().Replace('.', ','), out value) ? value : 0;

            return value;

        }

​

        /// <summary>

        /// Verilen DateTime'ın doğruluğunu kontrol eder eğer doğruysa DateTime döner yanlış ise 1900.01.01 döner.

        /// </summary>

        /// <param name="obj"></param>

        /// <returns></returns>

        public static DateTime BSDateTime(this object obj)

        {

            DateTime _date;

            if (DateTime.TryParse(obj.BSString(), out _date))

            {

                return _date;

            }

            return minDate;

        }

    }