AddToEvent Method

JavaScript

 function Leadtools.LeadEventArgs.addToEvent( 
   target ,
   eventName ,
   method 
)

Parameters

Parameter	Type	Description
target	object	Object containing the event.
eventName	string	String containing the event name.
method	Delegate	Event handler method.

To remove the handler from the event, use RemoveFromEvent.

This example adds a handler to the ImageChanged event of LEADTOOLS ImageViewer and then removes it.

JavaScript

example: function SiteLibrary_DefaultPage$example(viewer) {
   // The method to call on image changed
   var imageChangedHandler = null;

   imageChangedHandler = function(sender, e) {
      alert("Image has changed");
      // Remove the event
      lt.LeadEventArgs.removeFromEvent(viewer, "imageChanged", imageChangedHandler);
   };

   // Add a handler to the viewer.ImageChanged event
   lt.LeadEventArgs.addToEvent(viewer, "imageChanged", imageChangedHandler);

   // Set an image into the viewer and notice our alert
   viewer.set_imageUrl("Images/24.png");
},

AddToEvent Method

Parameters

Reference