Passing parameters between Visualforce pages
If a user is redirected from one Visualforce page to another and they both share the same controller and extensions, the controller instance will be retained and re-used, allowing the second page to access any information captured by the first.
If the pages do not share the same controller and extensions, the controller instance will be discarded and the second page will have no access to any information captured by the first. If the state needs to be maintained across the pages in this case, it must be encapsulated in the parameters on the URL of the second page.
In this recipe, we will build on the example from the previous recipe to create a Visualforce search page to retrieve all accounts where the ...
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