Cant convert string( negative decimal) to double

Question

_{Monday, September 9, 2013 3:15 PM}

Hello

string s1 = "-0.85";
            double d1=0;
            try
            {
                d1 = Convert.ToDouble(s1);
            }
            catch (FormatException)
            {
                Console.WriteLine("Something is wrong");
            }

How to convert such kind of strings to double?
http://msdn.microsoft.com/ru-ru/library/zh4hkw6k.aspx I used this, but still I get exception

All replies (5)

_{Monday, September 9, 2013 3:31 PM ✅Answered | 1 vote}

"-0.85" is probably not valid with your current default locale. Use the Convert overload that take an IFromatProvider

d1 = Convert.ToDouble(s1, System.Globalization.CultureInfo.GetCultureInfo("en-US"));

_{Monday, September 9, 2013 3:34 PM ✅Answered}

You should specify an IFormatProvider:

      string s1 = "-0.85";      double d1=0;      try {        Double.TryParse(s1, NumberStyles.Any, CultureInfo.InvariantCulture, out d1);      }      catch (FormatException) {        Console.WriteLine("Something is wrong");      }

_{Monday, September 9, 2013 3:35 PM ✅Answered}

The code seems to work for me, could you try the following and confirm it works?:

            string x = "-0.85";
            double d = Convert.ToDouble(x, CultureInfo.InvariantCulture);

_{Monday, September 9, 2013 3:36 PM ✅Answered}

I think this is related to the culture you are working in, ru-RU? Convert.ToDouble() will use the current culture's number styles when attempting to do the conversion. If you set a format provider when calling the method it should get round the problem. See here for more.

_{Monday, September 9, 2013 3:42 PM ✅Answered}

Well, it works for me :) The problem imho is the missing i18n. Use

namespace ConsoleApplication1
{
    using System;
    using System.Globalization;

    public class Program
    {
        public static void Main(string[] args)
        {
            string s1 = "-0.85";
            double d1 = 0;
            try
            {
                d1 = Convert.ToDouble(s1, CultureInfo.InvariantCulture);
                Console.WriteLine("Done");
            }
            catch (FormatException)
            {
                Console.WriteLine("Something is wrong");
            }

            
            Console.ReadLine();
        }
    }
}