How to call an ASP.NET WebMethod in a UserControl (.ascx)
Is it possible to place a WebMethod in an ascx.cs file (for a UserControl) and then call it from client-side jQuery code?
For some reasons I can't place the WebMethod code in an .asmx or .aspx file.
Example: In ArticleList.ascx.cs I have the following code:
[WebMethod]
public static string HelloWorld()
{
return "helloWorld";
}
In ArticleList.ascx file there I have the call to the WebMethod as follows:
$.ajax({
type: "POST",
contentType: "application/json; charset=utf-8",
data: "{}",
dataFilter: function(data)//makes it work with 2.0 or 3.5 .net
{
var msg;
if (typeof (JSON) !== 'undefined' &&
typeof (JSON.parse) === 'function')
msg = JSON.parse(data);
else
msg = eval('(' + data + ')');
if (msg.hasOwnProperty('d'))
return msg.d;
else
return msg;
},
url: "ArticleList.ascx/HelloWorld",
success: function(msg) {
alert(msg);
}
});
and the error from firebug is:
<html>
<head>
<title>This type of page is not served.</title>
How can I sucessfully call the server-side WebMethod from my client-side jQuery code?
Answer
WebMethod should be static. So, You can put it in the user control and add a method in the page to call it.
Edit:
You can not call a web method through a user control because it'll be automatically rendered inside the page.
The web method which you have in the user control:
public static string HelloWorld()
{
return "helloWOrld";
}
In the Page class add the web method:
[WebMethod]
public static string HelloWorld()
{
return ArticleList.HelloWorld(); // call the method which
// exists in the user control
}