About Checkboxes
A checkbbox is a two-state control that indicates whether a certain condition
or value is on or off, true or false.
Runtime Behavior
- On GUI platforms, a checkbox is displayed as small, square box with a text
label to the right.
- The display state of a checkbox is always either checked or unchecked.
End users toggle the state of a checkbox by clicking it with the mouse or
by navigating to the checkbox and pressing [Select].
- On most GUIs, the text in the checkbox label is "hot." That is,
end users can toggle the checkbox by clicking either the checkbox element
or the text label itself.
- In Enter Query mode, the end user can exclude a checkbox as query criteria
by setting the checkbox state to undefined. When a checkbox is in the undefined
state, it appears disabled. Note that the undefined state is valid only in
Enter Query mode.
Related topics
About Checkbox Values
Creating a checkbox
Manipulating checkboxes at runtime