Hi,
An event offer an option for registrant to select one among two choices of A and B (via radio button). However, the event cannot offer the choice B for all registrants, but the number of registrants is limited for the choice B. So we have to hide the option when we got enough number of registrants with the choice B, so that further registrants cannot choose the option B. However, registration form will not show the option at all if we hide the custom field for the option.
So, we wish to have a custom field option to deactivate the custom field, so that registration form shows the custom field with a preselected choice A (default) in gray color fonts indicating a deactivated field but not changeable by registrant. (only during registration period) (With the deactivated option, the registration result should be the same as if the registrant has selected the default option A.)
Then our registrants will know the choice B is no longer available (but A only) when the option is displayed as in gray deactivated text.
Thanks.
Wonkoo
