ExtJS Action.submit response

When an ExtJS form is submitted, the successful completion of the asynchronous call will call the function mapped to the success config value. This function will take two parameters form and action. If you are returning JSON from the call you an access this directly from the action parameter.

  var _form = // ... get your form (eg. formPanel.form)
  _form.submit({ scope.this, waitMsg:'Doing someting',url: someurl: method: somemethod, 
     success: function(form, action ) {
        Ext.Msg.alert('Success?', action.result.success );
        Ext.Msg.alert('Data returned.', action.result.data.key1 );
     }
   });
  

The return value should look something like the following:

{"success":true,"data":{"key1":"key 1 result value"}}