Cancel esri.request or stop callback from happening

MattMoyles — Thu, 01 Mar 2012 18:59:25 GMT

In my project I have a dropdown list and when the user changes the value of this dropdown list an esri.request shoots out to get data. The problem is that sometimes a user will change the value of the dropdown box again before the callback from the last change comes back. Is there a way to stop the callback from happening if the user fires another request?

Is it possible to do something like this

var handle = esri.request({...});

//sometime later
handle.load = null;

Re: Cancel esri.request or stop callback from happening

nicogis — Thu, 01 Mar 2012 19:17:53 GMT

esri.request return a dojo.Deferred
if you see you have a http://dojotoolkit.org/api/1.3/dojo/Deferred/cancel so in the chain you can cancel it.
see http://livedocs.dojotoolkit.org/dojo/Deferred

topic Cancel esri.request or stop callback from happening in ArcGIS JavaScript Maps SDK Questions

Cancel esri.request or stop callback from happening

Re: Cancel esri.request or stop callback from happening