Windows apps
Collapse the table of content
Expand the table of content
Information
The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see the topic in its original location.

Byte::Parse Method (String^, IFormatProvider^)

 

Converts the string representation of a number in a specified culture-specific format to its Byte equivalent.

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

public:
static unsigned char Parse(
	String^ s,
	IFormatProvider^ provider
)

Parameters

s
Type: System::String^

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

provider
Type: System::IFormatProvider^

An object that supplies culture-specific parsing information about s. If provider is null, the thread current culture is used.

Return Value

Type: System::Byte

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

Exception Condition
ArgumentNullException

s is null.

FormatException

s is not of the correct format.

OverflowException

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

The s parameter contains a number of the form:

[ws][sign]digits[ws]

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

Element

Description

ws

Optional white space.

sign

An optional positive sign.

digits

A sequence of digits ranging from 0 to 9.

The s parameter is interpreted using the 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 together with the culture-specific formatting information that can be present in s, use the Byte::Parse(String^, NumberStyles, IFormatProvider^) method.

The s parameter is parsed using the formatting information in a NumberFormatInfo object supplied by provider. The provider parameter is an IFormatProvider implementation such as a NumberFormatInfo or CultureInfo object. The provider parameter supplies culture-specific information used in parsing. If provider is null, the thread current culture is used.

The following example parses string representations of Byte values with the Parse method.

String^ stringToConvert; 
Byte byteValue;

stringToConvert = " 214 ";
try {
   byteValue = Byte::Parse(stringToConvert, CultureInfo::InvariantCulture);
   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); }

stringToConvert = " + 214 ";
try {
   byteValue = Byte::Parse(stringToConvert, CultureInfo::InvariantCulture);
   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); }

stringToConvert = " +214 ";
try {
   byteValue = Byte::Parse(stringToConvert, CultureInfo::InvariantCulture);
   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 ' 214 ' to 214.
//       Unable to parse ' + 214 '.
//       Converted ' +214 ' to 214.

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
Return to top
Show:
© 2017 Microsoft