extjs4 grid crud using writer, how to save data from multi stores at one request? can u give an example? thx. in the extjs3, there is an solution which is probably to write a beforewrite event handler for both stores that saves the passed data and returns false, so it doesn't actually make a request.
Next, you would call save() on both stores and make your own request using the data from both beforwrite handlers.
however in the extjs4 there does not have the beforewrite event.