How settle View in layoutPanel container with smartgwt and MVP

hi, 

I'm new in GWT, and have problem with view implementation... I use MVP, and SmartGWT. I've got one place for two activities (menu in left and body in right) and settle container with LayoutPanel. But i don't understand how can i match my view size with my container. I declare a VLayout in my view, add somme widget and return my layout in my container as a widget. When i set widht100 or height100, my view exceed its zone ... Someone Help ? 

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