In many situations, you may want columns to map values so cells display a value that is different from what is actually stored in the grid. You can accomplish this with the formatItem event, but the FlexGrid provides a better alternative: DataMaps.

If you set a column's dataMap property to an instance of a DataMap, the grid will use it to look up display values for each data item, and will provide a drop-down list with valid items to use when editing the cells.