javascript - devexpress callback results syntax -

I am trying to find the right JavaScript syntax for a DevExpress datagrid callback to pass data to a customer I am

In .aspx I have installed an onclick event in the DataGrid line with custom callback event using JS call: dg.PerformCallback (key); and this function in the aspx.cs file is reached correctly, although I can not send data back to the customer:

  Secure zero dg_CustomCallback (Object Sender, DevExpress.Web. ASPxGridView.ASPxGridViewCustomCallbackEventArgs e) {string key = e.Parameters; // work e Results = "Something"; // .Results returns do not exist; }   
 Then I switched to a data callback with a custom callback because there is a  in  DevExpress.Web.ASPxGridView.ASPxGridViewCustomDataCallbackEventArgs . Results /  assets. However, I can not understand the related Javascript call I tried in vain:  dg.PerformCallback (key); ,  dg.PerformDataCallback (key);  and  dg.SendCallback (key); Besides, I'm thinking, when the problem above is fixed, the JS function needs a program to get returns data from the server after the callback.  JSPPraties  and  ASPxGridview  on the callback that you are using  
 
 .   
  & lt; ClientSideEvents EndCallback =   & lt; / Columns & gt;  function (s, e) {var errText = s.cpError; If you set JSPProperties on the server side like this (errText! = "") {Warning (errText);}} "/>   
  
  GridOfApp.JSProperties ["cpError"] = "The error was big!";   
 Important note that your JSPpatties should always start with the CPU prefix.