Creating a multiple-sheet report

Here we construct a report spawning multiple sheets. 

Concepts shown:
•	PagesDataSet / PagesDataField: You can use a special dataset to create a new sheet for each one of its records. To do it, you must define a PagesDataSet and PagesDataSetField in the FlexCelReport component

•	Filter data: Do not create too many sheets or the spreadsheet might get difficult to read (and if you use OLE, it might get really slow as well). In this demo, we have filtered the PagesDataset to obtain only 3 sheets.

•	You can’t use a published property to propagate the sheets. If you want to propagate sheets from memory and not from a db, use TFlxMemTable or an in-memory dataset.