what about the code-behind (code behind)

One MAJOR difference between AJAX.NET and Atlas.NET seems to be that AJAX.NET is able to expose methods in your codebehind to the client. 


Why doesn't Atlas do this? Or am I mistaken?


With AJAX.NET it's just a simple line or two:


 Ajax.Utility.RegisterTypeForAjax(GetType(myClass))


<Ajax.AjaxMethod()>Public Function myFunction


PLEASE tell me Atlas has something comparable to this. I don't have the time to rewrite all my code-behind methods in javascript or atlas script.
0
biggierock
3/28/2006 8:33:28 PM
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All you need to do in Atlas to expose a method on your page (or its code behind class) is to put a [WebMethod] attribute on it.  See here for an example.


David
0
davidebb
3/28/2006 10:30:26 PM 
well, i did try that. but it didn't work. i dont know if it needs to specify the namespace in the code-behind or in the aspx page, but i can't the javascript to work. 


here's my codebehind ... 
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Web.Services;

    public partial class sendersearch : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }
        [WebMethod]
        public string Login(string user, string pass)
        {
            return "success";
        }

    }



 


and here's my aspx page... 
"C#" AutoEventWireup="true" CodeFile="sendersearch.aspx.cs" Inherits="sendersearch" %>

 <head id="Head1" runat="server">
   <atlas:ScriptManager runat="server" ID="scriptManager" EnableScriptComponents="true"&gt;
     <services>    
       <atlas:servicereference path="sendersearch.aspx.cs" />
     </services>
   </atlas:ScriptManager>
<script type="text/javascript">
   function DoLogin(){
        
        sendersearch.Login('',''); //sendersearch is the name of the page (and the class in the code-behind)
   }
   
   </script>

 </head>
  
 <body>
  <form id="Form1" action="" runat="server">
     <div>
         <input type="button" value="Login" onclick="DoLogin()" /> <br />
     </div>
   </form>
  

       </body>
</html>

 


 
0
biggierock
3/29/2006 1:31:43 PM 
forget it. i found out what it was.


you've got to use a keyword when referring to the method in the code behind (or in a page method). the keyword is 'PageMethod'. duh.


for example....


PageMethod.DoLogin('','');
0
biggierock
3/29/2006 2:09:18 PM 
Correct.  Also, you don't need your atlas:servicereference tag, as PageMethods are automatically available.


David
0
davidebb
3/29/2006 4:03:26 PM 
I've tried to get a variation of this to work in vb -- could you tell what I'm doing wrong:


Here's my .aspx file:


<%
@ Page Language="VB" AutoEventWireup="false" CodeFile="AtlasScriptWithCodebehind.aspx.vb" Inherits="AtlasScriptWithCodebehind" %>

<!
DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<!
DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 

"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">



<
html xmlns="http://www.w3.org/1999/xhtml">



<head id="Head1" runat="server">

<atlas:ScriptManager runat="server" EnableScriptComponents="true" ID="scriptManager">

</atlas:ScriptManager>

<script type="text/javascript">



function DoSearch()

{


var QuantityElem = document.getElementById("quantity");

var ProductIDElem = document.getElementById("productID");



AtlasScriptWithCodebehind.PageMethod.HelloWorld(ProductIDElem.value, QuantityElem.value, OnRequestComplete);


}




function OnRequestComplete(result)

{


var RsltElem = document.getElementById("Results");

RsltElem.innerHTML = result;


}




</script>

<style type="text/css">

body { font: 11pt Trebuchet MS;

font-color: #000000;

padding-top: 72px;

text-align: center }



.text { font: 8pt Trebuchet MS }

</style>



</head>

<body>

<form id="Form1" runat="server">

<div>

Add to Cart


<input id="productID" type="text" />

<input id="quantity" type="text" />

<input id="SearchButton" type="button" 

value="Search" 

onclick="DoSearch()" />

</div>

</form>

<hr style="width: 300px" />

<div>

<span id="Results"></span>

</div>

</body>

</
html>

 

Here's my codebehind:


Imports
 System

Imports
 System.Data

Imports
 System.Configuration

Imports
 System.Collections

Imports
 System.Web

Imports
 System.Web.Security

Imports
 System.Web.UI

Imports
 System.Web.UI.WebControls

Imports
 System.Web.UI.WebControls.WebParts

Imports
 System.Web.UI.HtmlControls

Imports
 System.Web.Services

Partial
 Public Class AtlasScriptWithCodebehind

Inherits System.Web.UI.Page

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

End Sub

<WebMethod()> _


Public Function HelloWorld(ByVal productID As String, ByVal quantity As String) As String

quantity = Server.HtmlEncode(quantity)


productID = Server.HtmlEncode(productID)


If Not String.IsNullOrEmpty(quantity) Then

Return String.Format("Hello, your productID is {0} and your quantity input is {1}. The " _

& 
"current time is {2}", productID, quantity, DateTime.Now)

Else

Return "The query string was null or empty"

End If

End Function

 


 


End
 Class

 

I keep getting a javascript error on the page: 


'AtlasScriptCodeBehind' is undefined.


Thank you so much. 
0
rapidExposure
3/29/2006 9:12:10 PM 
Ignore my last post -- the keyword in the javascript call should be PageMethods.HelloWorld not PageMethod.HelloWorld.


 
0
rapidExposure
3/29/2006 9:23:19 PM
Reply:

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