Parse a string in exponential notation to float in CSharp

Description

The following code shows how to parse a string in exponential notation to float.

Example


using System;/*from w  ww  . j a  va 2s . co  m*/
using System.Globalization;
using System.Threading;

public class ParseString
{
   public static void Main()
   {
      Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture("en-US");

      string value;
      NumberStyles styles;

      value = "-1.123E-02";
      styles = NumberStyles.AllowExponent;
      ShowNumericValue(value, styles);

   }

   private static void ShowNumericValue(string value, NumberStyles styles)
   {
      Single number;
      try
      {
         number = Single.Parse(value, styles);
         Console.WriteLine("Converted '{0}' using {1} to {2}.", value, styles.ToString(), number);
      }
      catch (FormatException)
      {
         Console.WriteLine("Unable to parse '{0}' with styles {1}.", value, styles.ToString());
      }
   }   
}

The code above generates the following result.





















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