What type of parameters can events have to send data to the parent?

In OutSystems, events are used to facilitate communication between different modules or components. When an event is fired, it allows a component to pass information back to the parent or calling module. The type of parameter that can be utilized for this purpose is the Input parameter.

Input parameters are specifically designed to send data into a widget or component, allowing the parent to specify values when triggering the event. This mechanism is vital for achieving modularity and reusability in application development. It enables developers to create components that can react to various inputs and pass data back to their parents seamlessly.

Output parameters, on the other hand, are meant for returning data from a function or action but are not used for sending information when triggering an event. Understanding these parameter types is crucial for effective data handling and event management within the OutSystems framework.