Working with Containers
Mark L. Murphy · Apress eBooks · 2011
Containers pour a collection of widgets (and possibly child containers) into specific structures you like. If you want a form with labels on the left and fields on the right, you need a container. If you want OK and Cancel buttons to be beneath the rest of the form, next to one another, and flush to right side of the screen, you need a container. Just from a pure XML perspective, if you have multiple widgets (beyond RadioButton widgets in a RadioGroup), you need a container just to have a root element in which to place the widgets. These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.