C# Byte TryParse(String, Byte)

Description

Byte TryParse(String, Byte) tries to convert the string representation of a number to its Byte equivalent, and returns a value that indicates whether the conversion succeeded.

Syntax

Byte.TryParse(String, Byte) has the following syntax.


public static bool TryParse(
  string s,
  out byte result
)

Parameters

Byte.TryParse(String, Byte) has the following parameters.

s - A string that contains a number to convert. The string is interpreted using the Integer style.
result - When this method returns, contains the Byte value equivalent to the number contained in s if the conversion succeeded, or zero if the conversion failed. This parameter is passed uninitialized.

Returns

Byte.TryParse(String, Byte) method returns true if s was converted successfully; otherwise, false.

Example

The following example calls the TryParse(String, Byte) method with a number of different string values.


//w ww  .ja v  a2  s  . c  o  m
using System;

public class MainClass 
{
   public static void Main()
   {
      string byteString = null;
      CallTryParse(byteString);

      byteString = String.Empty;
      CallTryParse(byteString);

      byteString = "1024";
      CallTryParse(byteString);

      byteString = "100.1";
      CallTryParse(byteString);

      byteString = "100";
      CallTryParse(byteString);

      byteString = "+100";
      CallTryParse(byteString);

      byteString = "-100";
      CallTryParse(byteString);

      byteString = "000000000000000100";
      CallTryParse(byteString);

      byteString = "00,100";
      CallTryParse(byteString);

      byteString = "   20   ";
      CallTryParse(byteString);

      byteString = "FF";
      CallTryParse(byteString);

      byteString = "0x1F";
      CallTryParse(byteString);
   }

   private static void CallTryParse(string stringToConvert)
   {  
      byte byteValue; 
      bool result = Byte.TryParse(stringToConvert, out byteValue);
      if (result)
      {
         Console.WriteLine("Converted '{0}' to {1}", 
                        stringToConvert, byteValue);
      }
      else
      {
         if (stringToConvert == null) stringToConvert = "";
         Console.WriteLine("Attempted conversion of '{0}' failed.", 
                           stringToConvert.ToString());
      }
   }    
}

The code above generates the following result.