Motif and Common Desktop Environment: Style Guide Reference Migration Version

Motif and CDE 2.1 Style Guide Reference

Drop-Down Combination Box (Control)

Reference

Description

A drop-down combination box is a combination text-list control in which the text field is a text-entry field that is always visible, but the list box is hidden until the user performs an action to display it. Figure 15 illustrates a drop-down text-entry field and Figure 16 illustrates a drop-down list.

Figure 15. Drop-Down Text-Entry Field.

View figure.

Figure 16. Drop-Down List.

View figure.

When to Use

Recommended

Use a drop-down combination box when a window does not have enough space to contain a combination box.

Guidelines

Required

If the drop-down combination box has focus and the list box is displayed, remove the list box if the user presses Cancel or Escape and leave focus in the text-entry field.

Required

Do not allow the list box in a drop-down combination box to take focus.

Essential Related Topics

For more information, see the Combination Box (Control), Combination Text-List Control (Control Type), Control, Drop-Down List (Control), and List Box (Control) reference pages.

Supplemental Related Topics

For more information, see the Emphasis (Cue) and Text-Entry Field (Control) reference pages.