Vaadin - Iterate over components in a layout

[Gugan (Gugan Mohan)]

@Johannes Dahlström

You need to recursively walk the component tree. This should do it:

Component findComponentWithId(HasComponents root, String id) {
    for(Component child : root) {
        if(id.equals(child.getId())) {
            // found it!
            return child;
        } else if(child instanceof HasComponents) {
            // recursively go through all children that themselves have children
            return findComponentWithId((HasComponents) child, id);
        }
    }
    // none was found
    return null;
}

[/code]Usage:[code]

Component c = findComponentWithId(blueMainLayout, something.getId());
if(c instanceof ComboBox) {
     // do my job
}

Thank you Johan, It worked for me.