>2. I posted already that it's better to collect 'Save' code under 'Save' button. If you want to give a user a hint to enter, you could Setfocus() from Save.Click or just make some Combobox.ToolTipText, use different label, color, etc.
>It always depends on personal taste

I dn't know how good it is to put everything in the save button esp if the save button is in a toolbar which is common to all forms

btw instead of a tooltip - what I use is a message-bar class which is sort of like a statusbar but displayes warning,alerts etc. in different colors on the buttom of each form

Arnon