In your web screens you can present a list of possible values and the end-user can select only one of the values presented. This behavior is implemented by the Combo Box widget.

Handling the end-user choice

The value selected by the user is stored in a variable pointed to by either the  Variable or Special Variable property of this widget, based on the situations described below.

The list of possible values corresponds to an attribute of an entity, an attribute of a structure or generic values. In fact, the possible values presented to the user can be obtained in different ways:

• Presenting the value of an attribute in all the rows of an entity

• Presenting the value of an attribute in a select number of rows of an entity

• Presenting the value of an attribute in a structure

• Presenting the value of an attribute plus generic values, completely different from the values that the attribute can have

• Presenting a list of generic values

Setting the default value

To have a value pre-selected in the list when the widget is rendered, i.e., a default value, use the Variable or Special Variable properties. For that, simply set the value you want to be the default value in the Variable or Special Variable property (depending on the list where the value is) before the widget is rendered.

If you set the default value in both the Variable and Special Variable properties the latter is ignored, that is, the default value is the one you have set in the Variable property.

This widget has Ajax capabilities. Learn more About Rich Web Screens using Ajax.

Build an Auto-complete widget from a Combo Box using IntelliWarpTM. Learn more About IntelliWarp.

See Also

Layout of Web Widgets | Combo Box Widget Properties | Combo Box Widget Runtime Properties | Apply Web Styles | About IntelliWarp