Page Comparison

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As you might guess, this re-call header specifies

• the return value of the page function is Location – a Location object is passed back to the caller, after all
• a local variable named items of type Location[] – this array of locations is required for storing the pick-list ("3" in the illustration above) between post-backs

You can use arbitrary types, an arbitrary number of local variables and parameters – even out parameters. A complete catalog of how to write re-call headers can be found here: writing re-call headers.

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