When entering data on forms in Access desktop databases, it can be quicker and easier to select a value from a list than to remember a value to type. A list of choices also helps ensure that the value entered in a field is appropriate. A list control can connect to existing data, or it can display fixed values that you enter when you create the control. Read on to learn about the list controls available for Access forms, and how to create and customize them.
Returns one of two parts, depending on the evaluation of an expression. You can use IIf anywhere you can use expressions. You use IIf to determine if another expression is true or false. If the expression is true, IIf returns one value; if it is false, IIf returns another. You specify the values IIf returns. See some examples. IIf expr , truepart , falsepart.