Set the scroll bar in EasyUI the combobox components:
1. The vertical scroll bar: panelHeight setting properties, default 200, too much data appears automatically scroll bar assembly disposed auto, a scroll bar does not appear.
2. Horizontal scroll bar: The horizontal scroll bar can not be set by the formation of the property, but can be controlled by the style.
Adding to the page
.combobox-item{ white-space: nowrap; }
This style will modify all pages combobox components, when the data is too long a horizontal scroll bar will appear.