I have register form, in my register form i have 3 dropdown control for the birthday , like DayDropownControl, MonthDropownControl, YearDropownControl.
the initial value of all three drodowncontrol is like (--select day-- ) (--select month--) (--select year--)
sooo if user not select value from the any of 3 dropdown list, then i want to display single validator message like "Birthday is not valid";
actuleey i have set 3 validator for 3 dropdown control sooo when user not select value from dropdpwn list then 3 message display that "birthdays is not valid", i just want to show only one single message if any of 3 dropdown valus is not seleced or all of three has not selected just sigle message should be display that "birthdays is not valid"
help me freind how i can solve it
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