Catch error when creating new device in .NET

I have a .NET Windows application running fine, using C# in Visual Studio with the NI 3.1.2 drivers.  This requires 'namespace NationalInstruments.NI4882'.  I create a new device using 

    device = new Device(boardID, (byte)gpibAddressNumericUpDown.Value);

to access the GPIB device specified in gpibAddressNumericUpDown.Value, and I'm able to read and write from it just fine.

Now how do I catch the exception if I put the wrong address in gpibAddressNumericUpDown.Value?  I've tried 

    try {

        device = new Device(boardID, (byte)gpibAddressNumericUpDown.Value);

    }

    catch {

    }

and I don't seem to ever enter the 'catch' block.  Object Browser for the NI Device object says something about "exceptions", but I don't know how to check for them or if that's what I want.

Thanks for any help!

Gerrit