Package io.jmix.flowui.view

Class View.BeforeShowEvent

java.lang.Object
java.util.EventObject
com.vaadin.flow.component.ComponentEvent<View<?>>
io.jmix.flowui.view.View.BeforeShowEvent
All Implemented Interfaces:
Serializable
Enclosing class:
View<T extends com.vaadin.flow.component.Component>
public static class View.BeforeShowEvent extends com.vaadin.flow.component.ComponentEvent<View<?>>
The second (after View.InitEvent) event in the view opening process. All components have completed their internal initialization procedures. Data loaders have been triggered by the automatically configured DataLoadCoordinator facet.

In this event listener, you can load data, check permissions and modify UI components. For example: 

     @Subscribe
     protected void onBeforeShow(BeforeShowEvent event) {
         customersDl.load();
     }

You can abort the process of opening the view by throwing an exception.

See Also:

  • Constructor Details

    • BeforeShowEvent

      public BeforeShowEvent(View<?> source)