Receiving Data Back from Another Component

When data is sent to another component, the next tier has to be able to receive it. This takes you to the third part of moving data through the tiers and represents the business logic tier being able to handle the data it receives. You can look again at Figure 11.3, in which you will be focusing on the business logic tier.

Data can be received back from the user in a variety of ways. If it is an individual value, it can be the return value of a function. Fine for one value, this kind of data transfer is used for many built-in functions such as Date(), IsNumber(), IIF(), and others. But if more then one value is returned, you have to think of other options.

When it comes to data, you can easily pass ...

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