Have you tried taking renamed "Colour Name" to something like "ColourName"? It might not like the space.

You would probably have to play with the count and where the message box is displayed to get this to be exactly what you want, but I think something like this should work.


Public Class Form1

...

I'm assuming you want to check the values before making the call to the FV function. If that's the case, you could accomplish what you're trying to do with three simple if statements. Something like...