This class validates a string value for a form view, with an optional choice of possible values.
The associated panel item must be a wxText, wxListBox or wxChoice. For wxListBox and wxChoice items,
if the item is empty, the validator attempts to initialize the item from the strings in
This class validates a string value for a form view, with an optional choice of possible values.
The associated panel item must be a wxText, wxListBox or wxChoice. For wxListBox and wxChoice items,
if the item is empty, the validator attempts to initialize the item from the strings in