Visualforce Development Cookbook - Second Edition

Passing parameters to action methods

When developers move to Apex/Visualforce from traditional programming languages, such as Java or C#, a concept many struggle with is how to pass parameters from a Visualforce page to a controller action method.

Passing parameters to an action method is key when a Visualforce page allows a user to manage a list of records and carry out actions on specific records. Without this, the action method cannot determine which record to apply the action to.

In this recipe, we will output a list of opportunities and for each open opportunity, provide a button to update the opportunity status to Closed Won. This button will invoke an action method to remove the list element and will also send a parameter to the controller ...