List Box (Control)

When the cursor is on a list item that labels a viewable object, make presenting that object the default action.

Design list boxes with either a single, browse, multiple, or extended selection model.

In a scrollable list box, do not allow the cursor to wrap.

Display the active cursor as an element cursor on the appropriate list item.

When the user presses ↑ or ↓, navigate to the previous and next items in the list box, respectively.

If a list box can be scrolled horizontally, make it a tab group.

If a list box can be scrolled horizontally, then when focus is in the list box, allow ← and → to scroll left and right by one character width, and Ctrl ← and Ctrl → to scroll left and right by a larger amount.

Provide the list box with an area for presenting a list of labels as items.

Provide vertical scroll bars when some of the list items are not visible in the list box.

Arrange the list items vertically.

Use different cursor visuals when the list box is in add mode from the one used in normal mode.