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Convert::ToByte Method (Double)
Visual Studio 2010
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 ); }
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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