reload form with filled form data - Joomla! Forum - community, help and support

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hi, looking way reload form filled form inputs when button clicked.. there no need submit input data.can 1 me? how should so?
i need so, because 1 of form fields related other form fields.
p.s. have 1 submit button uses jtoolbar in front end.

1. try use built in field dependencies. "show on" https://docs.joomla.org/form_field
2. if it's component, see how save failure handled. of course have send data - controller/method handle it.
3. use ajax script update form, i.e. 2. without page reload.

happy coding in new year!

ove





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