How can I block a textbox if option box is selected?

Hi , I'm making a useform and I want people to say if they are single cheking an option box, and if they're not single i need them to write their wife name. I already have the 2 option boxes (to choose between single and married) and the textbox (to write their wife's name). The real problem is that i need the textbox and to be blocked if they select single. I need it to be blocked an in another color. If it hides with the label when i click single it's also ok. Thank you very much

re: How can I block a textbox if option box is selected?

if optSingle.value then
textbox1.enabled = false
textbox1.backcolor = vbred
else
textbox1.enabled = true
textbox1.backcolor = vbwhite
endif
regards
manpreet singh dhillon hoshiarpur

re: How can I block a textbox if option box is selected?

just simplifying above code.