Convert.ToDouble (SByte) converts 8-bit signed integer to double-precision floating-point number.
Module Example Public Sub Main() Dim numbers() As SByte = { SByte.MinValue, -23, 0, 17, SByte.MaxValue } Dim result As Double For Each number As SByte In numbers result = Convert.ToDouble(number) Console.WriteLine("Converted the SByte value {0} to {1}.", number, result) Next End Sub End Module