we developing project by using Adobe AIR/ExtJS and webservices. we are trying to hit the webservices to load the store by using HttpProxy. But its not hitting the webservice, because we are getting error as NoSoapAction (inside fault response). Please see below for sample code

Code:
var clientHierarchyDataStore = new Ext.data.JsonStore ({ root : 'results', totalProperty : 'totalCount',
remoteSort :
true, fields:clientDataFields,
proxy :new Ext.data.HttpProxy({ url : 'http:some service?method=getGridDataFields&queryString='+queryString, method : 'POST', timeout : 300000 }), baseParams : {limit: 20, start : 0} });
store.load({ params : {
start : 0, limit : 20 }
});

Kindly help on hitting webservice by using Proxy.

Kind Regards,
Saravanan.S