Convert.ToSByte (Int16) converts 16-bit signed integer to 8-bit signed integer.
Module Example Public Sub Main() Dim numbers() As Short = { Int16.MinValue, -1, 0, 121, 1340, Int16.MaxValue } Dim result As SByte For Each number As Short In numbers Try result = Convert.ToSByte(number) Console.WriteLine(result) Catch e As OverflowException Console.WriteLine("The {0} value {1} is outside the range of the SByte type.", _ number.GetType().Name, number) End Try Next End Sub End Module