Call a method in an aspx page - asp.net

Question

Can I call a method which is in an asp.net web page (in aspx.cs page) without checking it in the pageload?
for example '../test2.aspx/TestMethod
In this link I have noticed that we can give url: "PageName.aspx/MethodName", in jquery ajax method. I have tried it and never works for me.

Answer 1

Page Methods is a new mechanism in ASP.Net application where the server code cab be bound to Asp.Net pages
To enable Page methods we need to drag a ScriptManager control to the page and mark
the EnablePageMethods to “True”.
<asp:ScriptManager ID="ScriptManager1" runat="server"
EnablePageMethods="True">
</asp:ScriptManager>
Go the Code behind file of the page and add a static method
[WebMethod]
public static string HelloWorld(string name)
{
return string.Format("Hi {0}",name);
}
In javascript function we can use PageMethods object to call the WebMethod of the page.
<script type="text/javascript">
function GreetingsFromServer() {
var name = 'Jalpesh';
PageMethods.HelloWorld(name,OnSuccess, OnError);
return false;
}
function OnSuccess(response) {
alert(response);
}
function OnError(error) {
alert(error);
}
</script>

Answer 2

you can use ajax call for another page webmethod
$(document).ready(function() {
// Add the page method call as an onclick handler for the div.
$("#Result").click(function() {
$.ajax({
type: "POST",
url: "Default.aspx/GetDate",
data: "{}",
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function(msg) {
// Replace the div's content with the page method's return.
$("#Result").text(msg.d);
}
});
});
});