Export (0) Print
Expand All

Convert.ToByte Method (Int64)

Converts the value of the specified 64-bit signed integer to an equivalent 8-bit unsigned integer.

Namespace:  System
Assemblies:   System.Runtime.Extensions (in System.Runtime.Extensions.dll)
  mscorlib (in mscorlib.dll)

public static byte ToByte(
	long value
)

Parameters

value
Type: System.Int64

The 64-bit signed integer to convert.

Return Value

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

ExceptionCondition
OverflowException

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

The following example converts an array of Int64 values to Byte values.

long[] numbers = { Int64.MinValue, -1, 0, 121, 340, Int64.MaxValue };
byte result;
foreach (long 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 Int64 value -9223372036854775808 is outside the range of the Byte type. 
//       The Int64 value -1 is outside the range of the Byte type. 
//       Converted the Int64 value 0 to the Byte value 0. 
//       Converted the Int64 value 121 to the Byte value 121. 
//       The Int64 value 340 is outside the range of the Byte type. 
//       The Int64 value 9223372036854775807 is outside the range of the Byte type.      

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
Show:
© 2015 Microsoft