First Screen Update Field

[besumm...@gmail.com]

Hello,
I have one field that store the number of order. But When I click in submit button I want that this number appear in the first screen. What I should add to button? Any ideas? I send the screenshots in attachments.

[besumm...@gmail.com]

Hello,
I think that is more or less this:

if (RMPApplication.validate())
{
id_text_input.setValue(internal_ref);true;

}
else
{
id_text_input.setValue("-");true;
}

But didn't work. What is wrong?