Dialog boxes can request information from you or provide information for you. Clicking OK clears the dialog box. Dialog boxes requesting information are divided into a number of different fields containing values. Clicking on the field selects it and allows you to change its value. The different types of field that can be found in a dialog box are shown in the diagram below.
List box contains a list of items one or more of which can be selected by clicking on it.
A list box appears initially as a single line of text, with a down arrow to the right. To display the list of available choices click on the down arrow. Option buttons sometimes known as radio buttons . When selected a bullet is displayed. Check box represents an option that can be switched on and off.