Support Dynamic Forms
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Key: CLK-638
URL: https://issues.apache.org/jira/browse/CLK-638
Project: Click
Issue Type: New Feature
Components: core
Reporter: Bob Schellink
Assignee: Bob Schellink
One area where Click can improve is supporting dynamic forms. Typical example
is registering JavaScript events on Fields to submit the Form and then add more
Fields as the user navigates the Form.
Couple of reasons make this problematic. Form automatically validates its
fields. One can switch off this validation but need to keep in mind to switch
validation back on for non JS submissions.
The other area which is tricky is that all dynamic fields must be added in the
Page onInit event in order to be processed properly. One can invoke
field.bindRequestValue to query the field's value, but bindRequestValue doesn't
properly check whether or not its parent Form was submitted.
I propose we add a couple of helper methods to Form and Field to make this
process smoother eg:
void field.bind();
boolean field.bindAndValidate(); <- will return true if the field is valid,
false otherwise
form.bindFields();
boolean form.bindAndValidateFields(); <- will return true if *all* fields are
valid, false otherwise
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