I am not sure what you are asking for here.
If you want to ensure that the fields are filled prior to the user clicking the button then you should disable the button until the fields have data in them.
Is that what you are asking for?
I am not sure what you are asking for here.
If you want to ensure that the fields are filled prior to the user clicking the button then you should disable the button until the fields have data in them.
Is that what you are asking for?