are supported only by report sections. The Table item does not provide page breaks, it is split based on the report's PageSettings
properties. In case the item exceeds the available space in width, the horizontal paging will add a blank page after each vertical page.
Instead test using a custom PageSettings' PaperKind and PaperSize. This will let you gather the whole report in width, after evaluating the data in code.
Other approach is to group the Table item based on the data as in How to: Create Multi-Column Report - Across the Page and Then Down.
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