PageMethods & Webmethods (JS & C#)

pageMethods

// Thanks to Enrico Ariel @ http://www.youtube.com/watch?v=Kp4jxrs6uuI

//The codebehind:

  [WebMethod]
  public static string GetValues(string value)
  {
      value = value +" - Sent @ " + DateTime.UtcNow.ToLongTimeString();
      return value;
  }
  
//The JS:

  function getValues() {
      var text1 = $("#TextBox1").val();
      PageMethods.GetValues(text1, getValues_success, getValues_err);
  }
  function getValues_success(response) {
      alert(response);
  }
  function getValues_err(errorMsg) {
      alert(errorMsg.get_message());
  }
  
//The ASP must include a ScriptManager like:

  <asp:ScriptManager runat="server" ID="scriptManager1" EnablePageMethods="true"></asp:ScriptManager>