AJAX: Exposing a server controls webmethod to the client

[daokfella]

I have a Webmethod in a server control which needs to be called using
AJAX. The control writes a javascript block that uses setTimeout to
call a an ajax js function after 10 seconds.

When developing (not using a server control) on an aspx page, this
worked great. I set the EnablePageMetho ds() to true on the
ScriptManager. The method was marked as WebMethod in the page class.
Thus, I could call the ajax method like this:
PageMethods.MyW ebMethod(succes sfunction, failedfunction) .

Now I'm trying to strip out the code into a server control so it can
be used on a page-by-page basis. The only thing I can't figure out is
how to expose the webmethod (now in a server control) so it can be
prototyped and called in an ajax script.

Is there an easy way to register the server control's webmethod with
the page so I can call it via ajax?


-----------------------------
Here is my code as it was in my page:

function successfunction (returnVal, context) {
...
}

function failedfunction( ) {
...
}

function test() {

// WHAT DO I NEED TO DO TO EXPOSE MYWEBMETHOD FROM A SERVER
CONTROL?
PageMethods.MyW ebMethod(succes sfunction, failedfunction) ;
}

window.setTimeo ut(test, 10000);

[=?Utf-8?B?YnJ1Y2UgYmFya2Vy?=]

RE: AJAX: Exposing a server controls webmethod to the client

you server control need to inherit from Page, and you pages need to inherit
from your control.

-- bruce (sqlwork.com)


"daokfella" wrote:

I have a Webmethod in a server control which needs to be called using
AJAX. The control writes a javascript block that uses setTimeout to
call a an ajax js function after 10 seconds.
>
When developing (not using a server control) on an aspx page, this
worked great. I set the EnablePageMetho ds() to true on the
ScriptManager. The method was marked as WebMethod in the page class.
Thus, I could call the ajax method like this:
PageMethods.MyW ebMethod(succes sfunction, failedfunction) .
>
Now I'm trying to strip out the code into a server control so it can
be used on a page-by-page basis. The only thing I can't figure out is
how to expose the webmethod (now in a server control) so it can be
prototyped and called in an ajax script.
>
Is there an easy way to register the server control's webmethod with
the page so I can call it via ajax?
>
>
-----------------------------
Here is my code as it was in my page:
>
function successfunction (returnVal, context) {
...
}
>
function failedfunction( ) {
...
}
>
function test() {
>
// WHAT DO I NEED TO DO TO EXPOSE MYWEBMETHOD FROM A SERVER
CONTROL?
PageMethods.MyW ebMethod(succes sfunction, failedfunction) ;
}
>
window.setTimeo ut(test, 10000);
>