C# SByte Parse(String, NumberStyles, IFormatProvider)

Description

SByte Parse(String, NumberStyles, IFormatProvider) converts the string representation of a number that is in a specified style and culture-specific format to its 8-bit signed equivalent.

Syntax

SByte.Parse(String, NumberStyles, IFormatProvider) has the following syntax.


[CLSCompliantAttribute(false)]//from w w w  .  j  a v  a 2 s.  co m
public static sbyte Parse(
  string s,
  NumberStyles style,
  IFormatProvider provider
)

Parameters

SByte.Parse(String, NumberStyles, IFormatProvider) has the following parameters.

s - A string that contains the number to convert. The string is interpreted by using the style specified by style.
style - A bitwise combination of the enumeration values that indicates the style elements that can be present in s. A typical value to specify is NumberStyles.Integer.
provider - An object that supplies culture-specific formatting information about s. If provider is null, the thread current culture is used.

Returns

SByte.Parse(String, NumberStyles, IFormatProvider) method returns An 8-bit signed byte value that is equivalent to the number specified in the s parameter.

Example

The following example illustrates the use of the Parse(String, NumberStyles, IFormatProvider) method to convert various string representations of numbers to signed integer values.


using System;// ww w.j  av  a  2  s. c  om
using System.Globalization;

public class SByteConversion
{
   NumberFormatInfo provider = NumberFormatInfo.CurrentInfo;

   public static void Main()
   {
      string stringValue;
      NumberStyles style;

      stringValue = "   123   ";
      style = NumberStyles.None;     
      CallParseOperation(stringValue, style);

      stringValue = "000,000,123";
      style = NumberStyles.Integer | NumberStyles.AllowThousands;
      CallParseOperation(stringValue, style);

      stringValue = "-123";
      style = NumberStyles.AllowLeadingSign;
      CallParseOperation(stringValue, style);

      stringValue = "123-";
      style = NumberStyles.AllowLeadingSign;
      CallParseOperation(stringValue, style);

      stringValue = "123-";
      style = NumberStyles.AllowTrailingSign;
      CallParseOperation(stringValue, style);

      stringValue = "$123";
      style = NumberStyles.AllowCurrencySymbol;
      CallParseOperation(stringValue, style);

      style = NumberStyles.Integer;
      CallParseOperation(stringValue, style);

      style = NumberStyles.AllowDecimalPoint;
      CallParseOperation("123.0", style);

      stringValue = "1e02";
      style = NumberStyles.AllowExponent;
      CallParseOperation(stringValue, style);

      stringValue = "(123)";
      style = NumberStyles.AllowParentheses;
      CallParseOperation(stringValue, style);
   }

   private static void CallParseOperation(string stringValue, 
                                          NumberStyles style)
   {                                          
      sbyte number;

      try
      {
         number = sbyte.Parse(stringValue, style);
         Console.WriteLine("SByte.Parse('{0}', {1})) = {2}", 
                           stringValue, style.ToString(), number);   
      }
      catch (Exception e)
      {
         Console.WriteLine("'{0}' and {1} throw a {2}", 
                           stringValue, style.ToString(), e.GetType().Name);   
      }      
   }
}

The code above generates the following result.