required=true dynamically set

[zapryano]

<smartgwtVersion>3.1-p20140602</smartgwtVersion>
FF 24


Hi,

is it possible to set the required="true" dyniamically on the client and server side?

For example I have two fields in my *.ds.xml:

<field name="A" type="text" />

<field name="B" type="text" length="50" required="???"/>

If the field "A" has a value then field "B" shoud be requred=true on the client and server otherwise required=false?

I looked for some examples with requiredIfvalidator but there the functionality seems to focus only the client side.

Thanks for any help in advance,
zapryano

[Blama]

Hi zapryano,

interesting question. From reading ValidatorType.REQUIREDIF I'd also say that this is client-only. As ValidatorType is linked from docs/serverds/Validator, one might think otherwise.

@Isomorphic: Is zapryano's assumption correct and are there other client-only validators?

@zapryano: You should be able to solve your use case with a SERVERCUSTOM validator and a velocity expression or, if you like Java better, an serverObject.

Best regards,
Blama

[Isomorphic]

This should indeed be implemented as a serverCustom validator.

If, for performance reasons, you also want client-side enforcement that prevents invalid values from ever going to the server, add a Custom Validator as well in client-side Java code.