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 ethan.williams@example.com address is selected. The Priority combo box has the High item selected.

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

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

A Send button is at the bottom of the screen.