ToDouble Method (Byte)

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.

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

'Declaration
Public Shared Function ToDouble ( _
	value As Byte _
) As Double

Parameters

value
Type: System.Byte
An 8-bit unsigned integer.

Return Value

Type: System.Double
The 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


Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

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