Every Action implicitly contains a special variable called
message. The message variable contains the “backing” data of the
Page to which the
Action belongs. The backing data for the page is defined by the
Page Message for that page (
Page Message). When the
Action is invoked, the ActiveGrid Server updates the
Page data with whatever the user submitted when the
Action was called and then passes the updated data into the
Action’s message variable (with the user’s changes applied).
When you customize an Action, you can define your own
Action variables and populate them with data.