C# Convert ToByte(String)

Description

Convert ToByte(String) converts the specified string representation of a number to an equivalent 8-bit unsigned integer.

Syntax

Convert.ToByte(String) has the following syntax.


public static byte ToByte(
  string value
)

Parameters

Convert.ToByte(String) has the following parameters.

value - A string that contains the number to convert.

Returns

Convert.ToByte(String) method returns An 8-bit unsigned integer that is equivalent to value, or zero if value is null.

Example

The following example converts a String value to a Byte.


/*  w w w  . java2s .  co m*/
using System;
public class MainClass{
  public static void Main(String[] argv){  
    string stringVal = "123";
    byte byteVal = 0;
    
    try {
      byteVal = System.Convert.ToByte(stringVal);
      System.Console.WriteLine("{0} as a byte is: {1}",
        stringVal, byteVal);
    } 
    catch (System.OverflowException) {
      System.Console.WriteLine(
        "Conversion from string to byte overflowed.");
    }
    catch (System.FormatException) {
      System.Console.WriteLine(
        "The string is not formatted as a byte.");
    }
    catch (System.ArgumentNullException) {
      System.Console.WriteLine(
        "The string is null.");
    }
    
    //The conversion from byte to string is always valid.
    stringVal = System.Convert.ToString(byteVal);
    System.Console.WriteLine("{0} as a string is {1}",
      byteVal, stringVal);

  }
}

The code above generates the following result.