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Convert.ToByte Method (Int32)

Converts the value of the specified 32-bit signed integer to an equivalent 8-bit unsigned integer.

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

public static byte ToByte(
	int value


Type: System.Int32

The 32-bit signed integer to convert.

Return Value

Type: System.Byte
An 8-bit unsigned integer that is equivalent to value.


value is less than Byte.MinValue or greater than Byte.MaxValue.

The following example converts an array of Int32 values to Byte values.

int[] numbers = { Int32.MinValue, -1, 0, 121, 340, Int32.MaxValue };
byte result;
foreach (int number in numbers)
   try {
      result = Convert.ToByte(number);
      Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.", 
                        number.GetType().Name, number, 
                        result.GetType().Name, result);
   catch (OverflowException) {
      Console.WriteLine("The {0} value {1} is outside the range of the Byte type.", 
                        number.GetType().Name, number);
// The example displays the following output: 
//       The Int32 value -2147483648 is outside the range of the Byte type. 
//       The Int32 value -1 is outside the range of the Byte type. 
//       Converted the Int32 value 0 to the Byte value 0. 
//       Converted the Int32 value 121 to the Byte value 121. 
//       The Int32 value 340 is outside the range of the Byte type. 
//       The Int32 value 2147483647 is outside the range of the Byte type.      

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0