Get started
Loading...
Important Notice - Forums is archived

To simplify things and help our users to be more productive, we have archived the current forum and focus our efforts on helping developers on Stack Overflow. You can post new questions on Stack Overflow or join our Discord channel.

Product icon
TUTORIAL

Vaadin lets you build secure, UX-first PWAs entirely in Java.
Free ebook & tutorial.

CssImport when using Component Exporter by Mikhail Shabarov, 4 weeks ago
Recent Posts
Vaadin Forum4. Other

Expanding VerticalLayout Height

Eric Dobbs
1 decade ago Mar 18, 2010 4:36pm

I have a problem, I have a verticallayout containing two components(Panel, SplitPanel). I am trying to have the containing layout expand to use the full height of the screen. Below is the code and screenshot. Thanks for any help.

public void init() {
Window mainWindow = new Window("Mymart Application");

VerticalLayout layout = new VerticalLayout();
layout.setSizeFull();
layout.setSpacing(true);
setTheme("mytheme");

Panel headerPanel = new Panel();
headerPanel.addStyleName("bkgrnd");
Label headerLabel = new Label("My Store");
headerPanel.addComponent(headerLabel);

BaseView baseView = new BaseView();
baseView.setHeight("100%");

layout.addComponent(headerPanel);
layout.addComponent(baseView);
layout.setExpandRatio(baseView, 1.0f);

mainWindow.addComponent(layout);
setMainWindow(mainWindow);
}

Jens Jansson
1 decade ago Mar 19, 2010 8:23am

Panels and Windows (Windows extend Panels) have automatically a layout in it when you initialize it. This is something that many are not aware of and this may cause problems.

So when you want a component tree like this:

Window (mainWindow)
`- VerticalLayout (layout)

you actually get

Window (mainWindow)
 `- VerticalLayout (with no direct field in your program)
     `- VerticalLayout (layout)

with the code that you have. Use the getContent / setContent on Panel/Window to access and modify this middle layout.

I suggest you change your second last line, mainWindow.addComponent(layout); to mainWindow.setContnet(layout); to get rid of the extra layout. That might solve some of your problems.

If your problems still persists I think the problem is in the BaseView class.

Last updated on Mar, 19th 2010
+1
Eric Dobbs
1 decade ago Mar 23, 2010 2:05pm

Thanks, I will try that