Byte.Parse Method (String)


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Converts the string representation of a number to its Byte equivalent.

Namespace:   System
Assembly:  mscorlib (in mscorlib.dll)

public static byte Parse(
	string s


Type: System.String

A string that contains a number to convert. The string is interpreted using the Integer style.

Return Value

Type: System.Byte

A byte value that is equivalent to the number contained in s.

Exception Condition

s is null.


s is not of the correct format.


s represents a number less than MinValue or greater than MaxValue.

The s parameter contains a number of the form:


Elements in square brackets ([ and ]) are optional. The following table describes each element.




Optional white space.


An optional positive or negative sign.


A sequence of digits ranging from 0 to 9.

The s parameter is interpreted using the NumberStyles.Integer style. In addition to the byte value's decimal digits, only leading and trailing spaces together with a leading sign are allowed. (If the sign is present, it must be a positive sign or the method throws an OverflowException.) To explicitly define the style elements that can be present in s, use either the Byte.Parse(String, NumberStyles) or the Byte.Parse(String, NumberStyles, IFormatProvider) method.

The s parameter is parsed using the formatting information in a NumberFormatInfo object that is initialized for the current system culture. For more information, see CurrentInfo. To parse a string using the formatting information of some other culture, use the Byte.Parse(String, NumberStyles, IFormatProvider) method.

The following example demonstrates how to convert a string value into a byte value using the Byte.Parse(String) method. The resulting byte value is then displayed to the console.

string stringToConvert = " 162";
byte byteValue;
   byteValue = Byte.Parse(stringToConvert);
   Console.WriteLine("Converted '{0}' to {1}.", stringToConvert, byteValue);
catch (FormatException)
   Console.WriteLine("Unable to parse '{0}'.", stringToConvert);
catch (OverflowException)
   Console.WriteLine("'{0}' is greater than {1} or less than {2}.", 
                     stringToConvert, Byte.MaxValue, Byte.MinValue);
// The example displays the following output to the console:
//       Converted ' 162' to 162.         

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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