The Data-On-Demand ListBox is a subclass of the native REAL Studio (formerly REALbasic) ListBox and, as far as the end-user is concerned, will behave in the same way. The key difference for the programmer is that the Data-On-Demand ListBox does not store any data. Rather, it is a "virtual" ListBox that relies on you, the programmer, to provide data, row-by-row, as requested. As a result, the Data-On-Demand ListBox is much faster at populating thousands of rows and, because you maintain the data, does not require you to coordinate changes from the data in your database to the ListBox.
Hudson Digital on Demand player solves a lot of problems for teachers.
With easy keystrokes carefully arrange the three-blox-high columns as they fall
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