Byte.ToString Method (IFormatProvider)

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Converts the numeric value of the current Byte object to its equivalent string representation using the specified culture-specific formatting information.

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


<SecuritySafeCriticalAttribute> _
Public Function ToString ( _
    provider As IFormatProvider _
) As String
public string ToString(
    IFormatProvider provider


Return Value

Type: System.String
The string representation of the value of this object in the format specified by the provider parameter.




The return value is formatted with the general numeric format specifier ("G").

The provider parameter is an object that implements the IFormatProvider interface. Its GetFormat method returns a NumberFormatInfo object that provides culture-specific information about the format of the string that is returned by this method. The object that implements IFormatProvider can be any of the following:

  • A CultureInfo object that represents the culture whose formatting rules are to be used.

  • A NumberFormatInfo object that contains specific numeric formatting information for this value.

  • A custom object that implements IFormatProvider.

If provider is nulla null reference (Nothing in Visual Basic) or a NumberFormatInfo object cannot be obtained from provider, the return value is formatted using the NumberFormatInfo object for the thread current culture. For information about the thread current culture, see Thread.CurrentCulture.

The .NET Framework provides extensive formatting support, which is described in greater detail in the following formatting topics:


The following example iterates an array of byte values and displays each of them to the console by calling the ToString(IFormatProvider) method with different format providers.

Dim bytes() As Byte = {0, 1, 14, 168, 255}
Dim providers() As CultureInfo = {New CultureInfo("en-us"), _
                                  New CultureInfo("fr-fr"), _
                                  New CultureInfo("de-de"), _
                                  New CultureInfo("es-es")}
For Each byteValue As Byte In bytes
   For Each provider As CultureInfo In providers
      outputBlock.Text &= String.Format("{0,3} ({1})      ", byteValue.ToString(provider), provider.Name)
   outputBlock.Text &= vbCrLf
' The example displays the following output:
'      0 (en-US)        0 (fr-FR)        0 (de-DE)        0 (es-ES)
'      1 (en-US)        1 (fr-FR)        1 (de-DE)        1 (es-ES)
'     14 (en-US)       14 (fr-FR)       14 (de-DE)       14 (es-ES)
'    168 (en-US)      168 (fr-FR)      168 (de-DE)      168 (es-ES)
'    255 (en-US)      255 (fr-FR)      255 (de-DE)      255 (es-ES)            
byte[] bytes = { 0, 1, 14, 168, 255 };
CultureInfo[] providers = {new CultureInfo("en-us"), 
                           new CultureInfo("fr-fr"), 
                           new CultureInfo("de-de"), 
                           new CultureInfo("es-es")};
foreach (byte byteValue in bytes)
   foreach (CultureInfo provider in providers)
      outputBlock.Text += String.Format("{0,3} ({1})      ",
                    byteValue.ToString(provider), provider.Name);

   outputBlock.Text += "\n";
// The example displays the following output:
//      0 (en-US)        0 (fr-FR)        0 (de-DE)        0 (es-ES)
//      1 (en-US)        1 (fr-FR)        1 (de-DE)        1 (es-ES)
//     14 (en-US)       14 (fr-FR)       14 (de-DE)       14 (es-ES)
//    168 (en-US)      168 (fr-FR)      168 (de-DE)      168 (es-ES)
//    255 (en-US)      255 (fr-FR)      255 (de-DE)      255 (es-ES)            

Version Information


Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0


For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.