asp.net - Trying to fire .aspx C# function from javascript -

i'm working on web application , need fire c# function code behind when tree button pressed on page. found code finds node me, however, c# function doesn't seem recognized when trying call js.

<script type = "text/javascript">  function onload() {    var links = document.getelementbyid("<%=navtree.clientid %>").getelementsbytagname("a");    (var = 0; < links.length; i++) {      links[i].setattribute("href", "javascript:nodeclick(\"" + links[i].id + "\", \"" + links[i].getattribute("href") + "\")");    } }  window.onload = onload;  function nodeclick(id, attribute) {   //do   alert(nodelink.innerhtml + " clicked" + pagemethods.node_click());            eval(attribute); }  </script> 

and here's c# code:

[webmethod] public static string node_click() {   return "@#$"; } 

if remove pagemethods.node_click() call alert works fine, not call. noticed when typing pagemethods. function doesnt appear on pop list after period (in vs)

any ideas?

also, heres cs file:

public partial class sitemaster : masterpage {   protected void page_load(object sender, eventargs e)   {   }    [webmethod]   public static string node_click()   {     return "@#$";   } } 

you cannot call asp.net ajax page method directly javascript trying do. either need enablepagemethods="true" on asp.net ajax scriptmanager or use jquery's .ajax() method invoke them.

enablepagemethods creates javascript proxy allows pagemethods.yourpagemethodname() syntax work.

for jquery, since asp.net ajax page methods stand-alone web service methods hosted inside of asp.net page, callable ajax request via .ajax() function.

also of note, asp.net ajax page methods automatically json-encode return value, if any; not see javascript serialization going on in page methods themselves.

read using jquery directly call asp.net ajax page methods explanation of how using both approaches.

note: prefer jquery .ajax() route myself, have used pagemethods syntax in past. not bunch of javascript (the proxy built enabling page methods on scriptmanager) in page , have grown accustomed using jquery as possible in general.