The event handler method receives the following arguments:
sender
A Picker instance, which is the source of the event. This object will be passed to the handler function as the first argument.
args
An EventArgs instance, which contains event data. This object will be passed to the handler function as the second argument.

The following code handles the dropDownClose event of an ImagePicker that derives from Picker:

JavaScript  Copy Code
picker.dropDownClose.addEventListener(handleDropDownClose); function dropDownClose(sender, args) {   if(sender.imageIndex == 1)   {     //do something   } }

Picker Members
Picker Class
MindFusion.Common.UI Namespace