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Special Edition Using® Crystal Reports® 10 by Roger Sanborn, Steve Lucas, Kathryn Hunt, Joe Estes, Michael Voloshko, James Edkins, Bob Coates, Naisan Geula, Ryan Marples, Neil FitzGerald

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Considering Subreport Execution Time and Performance

There are two types of Subreports—In-Place and On-Demand. Both of the sample reports created previously in this chapter have been In-Place Subreports. An In-Place Subreport is virtually indistinguishable from the main report components when viewed because it is run at the same time as the main report. In-Place Subreports are displayed as components of the main report like any other report object and require no special business user interaction to view them. On-Demand Subreports, on the contrary, are not executed at the same time as the main report and require user interaction to be viewed.

All In-Place Subreports on a main report are run at the execution time of the main report. In the two ...

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