UserApp form field validation without messages

[dgersic]

This seems like it should be simple, but I'm drawing a blank here. In a simple PRD form, I want to validate my inputs. If the field is "wrong", I want to error the field, both to highlight the error, and to disable the submission of a form with an error. Seems like form.showError() is a natural fit here, but I do not want it to show a message. So this:

v=field.getValue();

if (v.length == 1) // whatever
{
form.showError(".");
}
else
{
form.clearMessages();
}

works - but with the "Field Name: ." shown at the top of the form. I don't want that. Just invalidate the field. Whatever form.showError() does to invalidate the field, but without the message part.

[rrawson]

You could try using jQuery to hide the message.

[dgersic]

Possibly. I'm thinking I shouldn't have to hide it. form.showError() is clearly doing three things. It marks the field contents as "invalid" (turns red). It marks the form as "invalid" (blocks Submit). And it displays a message. I want to do only two of those things.

I can disable the Submit button, I know how to do that. It seems like it should be simple, even obvious, how to mark a form field as "invalid".