Radio Buttons
Introduction
Radio Buttons are used to display and, optionally, allow the end-user to edit the value of an attribute of data type Boolean or Enumeration.
When the page is displayed to the end-user, all the possible values are listed, with a filled-in circle next to the selected value and an empty circle next to the unselected value (or values). Only one value can be chosen – choosing another value deselects the current value. For example:
Radio buttons must be placed in a data container and display an attribute of the object (or objects) retrieved by that container. The name of the attribute to be displayed is shown inside the radio button widget, between square brackets, and colored blue.
For example, the following image contains two sets of radio buttons. The first allows the end-user to see, and set, the value of an enumeration identifying the preferred time to contact this person (PreferredContact). The second allows the end-user to see, and set, a Boolean indicating whether this is a Personal contact.
Properties Pane
The properties pane is divided into two major sections by a toggle at the top of the pane: Properties and Styling. Radio button properties consist of the following sections:
Properties:
Styling:
Properties
General Section
Orientation
This property defines whether the radio buttons are rendered as a Horizontal or Vertical list.
Default: Horizontal
Data Source Section
This selects which attribute will be used within the widget. You can only select attributes which have the correct data type(s).
For more information on selecting a data source, see the Data Source Section section in Properties Common in the Page Editor.
Label Section
A label describes the purpose of a widget to the end-user.
For more information on properties of this section, see the Label Section section in Properties Common in the Page Editor.
Editability Section
Editability determines whether an end-user can change the value in an input widget.
For more information on properties of this section, see the Editability Section section of Properties Common in the Page Editor.
Visibility Section
Visibility determines whether a widget is displayed to the end-user as part of the page.
For more information on properties of this section, see the Visibility Section section in Properties Common in the Page Editor.
Common Section
Events Section
On Change
The on-change property specifies an action that will be executed when leaving the widget, either by using the Tab key or by clicking another widget, after the value has been changed.
On Enter
The on-enter property specifies an action that will be executed when the widget is entered, either by using the Tab key or by clicking it with the mouse.
On Leave
The on-leave property specifies an action that will be executed when leaving the widget, either by using the Tab key or by clicking another widget.
This differs from the On change property in that the event will always be triggered, even if the value has not been changed.