Other Events

This documentation is for an older version of ZK. For the latest one, please click here.

Event Name	Components	Description
onCreate	all	Event: CreateEvent Denotes a component is created when rendering a ZUML page. Refer to the Component Lifecycle chapter.
onClose	window tab fileupload	Event: Event Denotes the close button is pressed by a user, and the component shall detach itself.
onDrop	all	Event: DropEvent Denotes another component is dropped to the component that receives this event. Refer to the Drag and Drop section.
onCheck	checkbox radio radiogroup	Event: CheckEvent Denotes the state of a component has been changed by the user. Note: onCheck is sent to both radio and radiogroup.
onMove	window	Event: MoveEvent Denotes a component has been moved by the user.
onSize	window	Event: SizeEvent Denotes a component has been resized by the user.
onZIndex	window	Event: ZIndexEvent Denotes the z-index of a component has been changed by the user.
onTimer	timer	Event: Event Denotes the timer you specified has triggered an event. To know which timer, invoke the getTarget method in the Event class.
onNotify	any	Event: Event Denotes a application-dependent event. Its meaning depends on applications. Currently, no component will send this event.
onClientInfo	root	Event: ClientInfoEvent Notifies a root component about the client's information, such as time zone and resolutions.
onPiggyback	root	Event: Event Notifies a root component that the client has sent a request to the server. It is usually used to piggyback non-emergent UI updates to the client.
onBookmarkChange	root	Event: BookmarkEvent Notifies that the user pressed BACK, FORWARD or others that causes the bookmark changed.
onColSize	columns listhead treecols	Event: ColSizeEvent Notifies the parent of a group of headers that the widths of its children are changed by the user.
onPaging	grid listbox paging	Event: PagingEvent Notifies one of the pages of a multi-page component is selected by the user.
onUpload	fileupload	Event: UploadEvent Notifies that file(s) is uploaded, and the application can retrieve the uploaded files(s) by use of the getMedia or getMedias methods.
onFulfill	all	Event: FulfillEvent Notifies that the fulfill condition has been applied to the target component. It is posted after all descendant components have been created.

Echo Event

Echo event allows you to provide more richer message before doing long operation.

<window id="w" width="200px" title="Test echoEvent" border="normal">
  <attribute name="onLater">
  Thread.sleep(5000);
  Clients.showBusy(null, false);
  new Label("Done.").setParent(w);
  </attribute>

  <button label="Echo Event">
  <attribute name="onClick">
  Clients.showBusy("Execute... (about 5 sec.)", true);
  Events.echoEvent("onLater", w, null);
  </attribute>
  </button>
</window>

For more information, please refer to this small talk.

The Event Flow of radio and radiogroup

For developer's convenience, the onCheck event is sent to raido first and then to radiogroup. Thus, you could add listener either to the radio group or to each radio button.

<radiogroup onCheck="fruit.value = self.selectedItem.label">
	<radio label="Apple"/>
	<radio label="Orange"/>
</radiogroup>

You have selected : <label id="fruit"/>

The above sample has the same effect as follows.

<radiogroup>
	<radio label="Apple" onCheck="fruit.value = self.label"/>
	<radio label="Orange" onCheck="fruit.value = self.label"/>
</radiogroup>

You have selected : <label id="fruit"/>