Triggers

• System triggers are synchronously executed in response to a system event or command, such as read, delete, or validate. Such commands can cause a cascade of triggers to be fired. For more information, see System Triggers and Trigger Activation.
• Interactive triggers are asynchronously executed in response to user events, the macro command or the callfieldtrigger command. The widget triggers that are available to an object depend on the type of component and the type of widget. For more information, see Interactive Triggers .
• Web triggers are interactive triggers that are invoked by Uniface and executed in the client browser. They can only be used in Dynamic Server Page components. For more information, see webtrigger…end.

  Web triggers are declared using the webtrigger ProcScript statement, but they are implemented by JavaScript in a block defined by the javascript and endjavascript ProcScript commands.

All triggers are written in code containers and are explicitly declared using the trigger (or webtrigger) ProcScript commands. The end of a triggers must be explicitly declared with the end statement. For example:

trigger detail
  activate "MyCpt".exec
end; trigger

webtrigger detail
javascript
...
endjavascript
end; detail trigger

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