Spry User Guide - Support - Adobe

Notification Description
onPreSort The data in the data set is about to be sorted.
onPostSort The data in the data set has been sorted.
onCurrentRowChanged The data set's notion of the current row has changed.
Objects as observers
To receive notifications, an object must define a method for each notification it is interested in receiving, and then
register itself as an observer on the data set. For example, an object interested in onDataChanged notifications must
define an onDataChanged() method and then call addObserver().
var dsPhotos = new Spry.Data.XMLDataSet("/photos.php?galleryid=2000",
"/gallery/photos/photo");
...
var myObserver = new Object;
myObserver.onDataChanged = function(dataSet, data)
{
alert("onDataChanged called!");
};
dsPhotos.addObserver(myObserver);
The first argument for each notification method is the object that is sending the notification. For data set observers,
this is always the dataSet object. The second argument is either undefined, or an object that depends on the type
of notification.
Notification Data passed into notification
onPreLoad undefined
onPostLoad undefined
onLoadError The Spry.Utils.loadURL.Request object that was used when making
the request
onDataChanged undefined
onPreSort Object with the following properties:
oldSortColumns: An array of columns used during the last sort.
oldSortOrder: The sort order used during the last sort.
newSortColumns: The array of columns about to be used for the
sort.
newSortOrder: The sort order about to be used for the sort.
onPostSort Object with the following properties:
oldSortColumns: An array of the columns used in the previous sort.
oldSortOrder: The sort order used during the previous sort.
newSortColumns: The array of columns used for the sort.
newSortOrder: The sort order used for the sort.
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