Convert.ToByte Method (Double)
.NET Framework (current version)
Converts the value of the specified double-precision floating-point number to an equivalent 8-bit unsigned integer.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- value
-
Type:
System.Double
The double-precision floating-point number to convert.
Return Value
Type: System.Bytevalue, rounded to the nearest 8-bit unsigned integer. If value is halfway between two whole numbers, the even number is returned; that is, 4.5 is converted to 4, and 5.5 is converted to 6.
| Exception | Condition |
|---|---|
| OverflowException | value is greater than Byte.MaxValue or less than Byte.MinValue. |
The following example converts a Byte value to a Double and a Double value to a Byte.
public void ConvertDoubleByte(double doubleVal) { byte byteVal = 0; // Double to byte conversion can overflow. try { byteVal = System.Convert.ToByte(doubleVal); System.Console.WriteLine("{0} as a byte is: {1}.", doubleVal, byteVal); } catch (System.OverflowException) { System.Console.WriteLine( "Overflow in double-to-byte conversion."); } // Byte to double conversion cannot overflow. doubleVal = System.Convert.ToDouble(byteVal); System.Console.WriteLine("{0} as a double is: {1}.", byteVal, doubleVal); }
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
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
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