In addition to the form and field properties lised in the basic set, there may be cases that require more fine-graned details of the form state.
visited: the field has ever received a focus event
modified: the value has been ever modified from its original.
After the values has been modified once, this flag remains set even if the value is modified again to undo the change.
The flag is reset when the form is reset.
In addition to the form and field properties lised in the basic set, there may be cases that require more fine-graned details of the form state.
visited: the field has ever received afocuseventmodified: the value has been ever modified from its original. After the values has been modified once, this flag remains set even if the value is modified again to undo the change. The flag is reset when the form is reset.focused: the field currenty has focus