April 2002
Intermediate to advanced
416 pages
11h 50m
English
The OrderEntryTabs program described in the previous chapter does a fair job of implementing a single-user order entry system. For all but the smallest businesses, however, this example is quite cumbersome. It makes the user select a customer from a single list box. That works if the database contains only a few dozen customers, but it can be difficult if the database contains hundreds or thousands of customers. It also makes the program load and store information about all the customers, although the user will only work with a few of them.
Chapter 12, “Query By Example,” shows one way to deal with the problem of selecting a record from a large database. It shows techniques that let the user quickly select ...
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