c# Calling Server side method using JQuery

Question

Im trying to call a server method in my aspx.cs to delete all the files in a directory when a user closes the browser.

[WebMethod]
    public static void fileDelete()
    {

        string[] uploadedFiles = Directory.GetFiles(@"C:\Users\Lambo\Documents\Visual Studio 2010\Projects\test\test\testPdfIn");
        foreach (string uploaded in uploadedFiles)
        {
            File.Delete(uploaded);
        }
    }

======================================================================

EDIT

I've tried the POST method but it still doesn't seem to work. I've changed the URL too.

Over at the client side im using this:

    $(function () {
        $(window).unload(function () {
            alert("Files have been deleted")
             jQuery.ajax({ type: 'POST', url: "http://localhost:19642/success.aspx/fileDelete", async: true });
        });
    });

However it doesnt seem to be working. Are the codes wrong in someway?

How is it not working? Is the AJAX code executed? Does it reach the intended server-side code? What is the response from the server? — David
– David, Commented May 10, 2012 at 16:27
Are you trying to delete files on the server or client? If server, it should be working. If client, you'll need to run client-side code to do this, (I'm not sure if this can work, due to security restrictions) not server-side. — Tim S.
– Tim S., Commented May 10, 2012 at 16:29
I think the default type of ajax call in jquery is GET whereas to invoke the WebMethod in success.aspx I think you need to POST. (Heavy emphasis on think because I cannot currently test this theory). — GarethD
– GarethD, Commented May 10, 2012 at 16:33
to add to @GarethD comment about GET, sometimes browser caching will prevent the call from reaching your Server..not the case for POST. — ltiong_dbl
– ltiong_dbl, Commented May 10, 2012 at 16:38

Alexei Levenkov · Accepted Answer · 2012-05-10 16:34:46Z

1

To investigate failures of AJAX calls use HTTP debugger (like Fiddler ) to see what requests are made and what responses are received.

My guess is that your Url is wrong and request is made to wrong file. Consider making absolute (or at lest server relative) url.

answered May 10, 2012 at 16:34

Alexei Levenkov

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