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Data pages and parameters


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Parameters can be passed to data pages from several sources:

Each time that you reference a data page with different parameters, an instance of the data page is created on the clipboard. You can have multiple instances of a data page on the clipboard, each one created by a reference with different parameters from the others, or, if you have checked the Limit to a single data page check box on the Load Management tab, each new reference to the data page creates an instance of the data page that overwrites any existing instance.

Subsequent references to a data page using parameters that result in a reference to an existing instance of the data page on the clipboard refer to that existing data page unless the conditional refresh strategy indicates the page should be reloaded on each reference.

Report definitions cannot reference data pages that themselves take parameters ( such as D_page1[param1:D_page2[param2:Param.P1],param2:pxRequestor.pyUserIdentifier].pyLabel ) to populate columns, although they can directly reference properties in a data page (such as D_page1.companyName ).

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