Convert.ToInt32 (Int64) converts 64-bit signed integer to 32-bit signed integer.
Module Example Public Sub Main() Dim numbers() As Long = { Int64.MinValue, -1, 0, 121, 340, Int64.MaxValue } Dim result As Integer For Each number As Long In numbers Try result = Convert.ToInt32(number) Console.WriteLine(result) Catch e As OverflowException Console.WriteLine("OverflowException") End Try Next End Sub End Module