Convert.ToDouble Method (Byte)
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Converts the value of the specified 8-bit unsigned integer to the equivalent double-precision floating point number.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- value
- Type: System.Byte
An 8-bit unsigned integer.
Return Value
Type: System.DoubleThe double-precision floating point number equivalent to the value of value.
The following code sample illustrates the conversion of a Byte value to a Double one, using ToDouble.
Public Sub ConvertDoubleByte(ByVal doubleVal As Double) Dim byteVal As Byte = 0 ' Double to Byte conversion can overflow. Try byteVal = System.Convert.ToByte(doubleVal) outputBlock.Text &= String.Format("{0} as a Byte is: {1}.", _ doubleVal, byteVal) & vbCrLf Catch exception As System.OverflowException outputBlock.Text &= String.Format( _ "Overflow in Double-to-Byte conversion.") & vbCrLf End Try ' Byte to Double conversion cannot overflow. doubleVal = System.Convert.ToDouble(byteVal) outputBlock.Text &= String.Format("{0} as a Double is: {1}.", _ byteVal, doubleVal) & vbCrLf End Sub
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