Excel's Formula - sisman

Chapter 19: Conditional Formatting and Data Validation 553
Creating a dependent list
Figure 19-31 shows a simple example of a dependent list created by using data validation. Cell E2
contains data validation that displays a list from the range A1:C1 (Vegetables, Fruits, and Meats).
When the user chooses an item from the list, the choice in a second list (in cell F2) displays the
appropriate items.
This worksheet uses three named ranges:
Vegetables: A2:A5
Fruits: B2:B9
Meats: C2:C5
Cell F2 contains data validation that uses this formula:
=INDIRECT($E$2)
Therefore, the list displayed in the drop-down list depends on the value displayed in cell E2.
Figure 19-31: The items displayed in the list in cell F2 depend on the list item selected in cell E2.