Combo Box: General Information

A combo box is a drop-down control that combines a text box with a list of options. It can consist of any number of values that a user can select. You can configure a combo box so that the user can select more than one value.

A combo box is defined by PXDropDown in the Classic UI. In the Modern UI, a combo box is defined by the field tag, whose control type is automatically defined as a combo box from the backend code. In rare cases, a combo box in the Modern UI is defined explicitly by the qp-drop-down control.

Learning Objectives

In this chapter, you will learn the following about a combo box:

• The design guidelines for a combo box, including the naming conventions
• The details of each property of a combo box

Applicable Scenarios

You configure combo boxes in the following user scenarios:

• A user needs to select a single item or multiple items from a finite list of items, such as selecting items from a list of preferences.
• A user needs to selects a specific criterion from a predefined list of options to apply a filter or sort data.

UI Naming Convention

The following table shows the UI naming convention for a combo box.

Naming Convention	Example
Use a noun or a noun phrase to describe the contents of a combo box. Preferably, combo box names should consist of one or two words.	The Customer Status combo box on the Customers (AR303000) form, which is shown in the following screenshot