This illustration shows a screen capture of the ComboBoxSample application. Its user interface contains several UI controls arranged in rows.

The first row contains two combo boxes indicated by the labels To and Priority. The To combo box is expanded. It lists the following email addresses: jacob.smith@example.com, isabella.johnson@example.com, ethan.williams@example.com, emma.jones@example.com, and michael.brown@example.com. The email address of Isabella Johnson is highlighted.

The Priority combo box has the Normal item selected.

The second row contains the Subject field with the corresponding label.

The third row is the text area for the message body.

A Send button is at the bottom of the screen.