FORM is a component that presents a page section containing controls(check boxes, radio buttons, etc.). Ui-related FORM inherits from view.
Related sample: 02_form/01_init.html
The following is an example of initialization with the commonly used parameters (to see a full list of FORM's parameters, please refer to the corresponding chapter of the manual):
dhx.ui({ view:"form", id:"leftform", elements:[{ ... }] });
All the controls that can be used in FORM (and not only in FORM, but also in TOOLBAR or as individual components) you can find in 'Controls' chapter.
To use ui functionality, touchui.css and touchui.js files must be included.