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Vaadin Forum3. Vaadin 6, 7, 8Framework UI

component with zero width and height

Martin Zrubec
1 decade ago Jan 24, 2012 11:50am

Hello everyone,

does anyone have an idea, why a component (a Table with two rows), would have the inline style="width: 0px; height: 0px; " in its markup? Most of the child elements also have at least "width: 0px" specified. When does the client engine decide "this component will have zero width and zero height" ? I already tried a lot of things, including wrapping it in different layouts (in the current markup screenshot I had CustomLayout), specify sizes, use undefined size, etc. It's a CustomComponent with a setCompositionRoot(table) at the end of its constructor and it is added into a layout somewhere else. The other things are visible, only this table is collapsed because of the zero dimensions in inline styles...

Thanks for any ideas,
--
Martin

Last updated on Jan, 24th 2012
Javier Serrano
1 decade ago Jan 24, 2012 1:39pm

Hi Martin,

It's possible put a code snippet of your component? Maybe the constructor?

Thanks,

Javi

Mathias Clerc
1 decade ago Jan 25, 2012 12:22am

Adding ?debug to the URL of your application will show the debug window.
Click on "Analyse Layout" (or "AL", it depends on version) in that window to have Vaadin check your layouts are OK.
Usually looking at the messages in that window and fixing the errors will fix 0 sized components.

See chapters 11.4.1 and 11.4.2

Last updated on Jan, 25th 2012