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Controls are the workhorses of Access. They are used for inputting and outputting data, and for displaying static information. They can be used as global variables, to calculate intermediate values. Forms and reports share the same controls.
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Some controls have values, given by user at design time, by the data from which the control is being fed, or by the user at run time. Eg. for a text box, the value is the text inside the box; for a list box, the control value is the one chosen.
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Controls have properties which can be set or changed by the application. Access provides the Tag property which allows the user to specify and store upto 2048 characters of information attached to any control.
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