Convert.ToUInt32 (Int32) converts 32-bit signed integer to 32-bit unsigned integer.
Class Sample Public Shared Sub Main() Dim numbers() As Integer = { Int32.MinValue, -1203, 0, 121, 1340, Int32.MaxValue } Dim result As UInteger For Each number As Integer In numbers Try result = Convert.ToUInt32(number) Console.WriteLine(result) Catch e As OverflowException Console.WriteLine("The {0} value {1} is outside the range of the UInt32 type.", _ number.GetType().Name, number) End Try Next End Sub End Class