Get Additional file information of File after Uploading using uploadify jQuery Plugin

hi, I want to let admin upload files. and i want to save some details about file in database I did this with fileUpload control like this:

 public void InsertUploadedFileInfo(string filename, int filesize, string filetype)
    {
        string picname="nopic.png";
        MyDALBase.ExecuteNoneQuery(System.Data.CommandType.StoredProcedure, "InsertUploadedFileInfo", new SqlParameter[]{
            new SqlParameter("@categoryId",Convert.ToInt32(ViewState["Id"])),
            new SqlParameter("@summery",txt_summery.Text),
            new SqlParameter("@Description",FreeTextBox1.Text),
            new SqlParameter("@fileType",filetype),
            new SqlParameter("@fileSize",filesize),
            new SqlParameter("@pic",picname),
            new SqlParameter("@fileStatus",1),
            new SqlParameter("@UploaderName",User.Identity.Name),
            new SqlParameter("@DirectoryName",ListBox1.SelectedItem.Text),
            new SqlParameter("@fileName",filename)
        });
    }

but I want to do this by uploadify.
I can write an method in upload.ashx for saving filename, size,...
but I have a textbox, and an editor for summery and Description
and a button (let name it btn_insert) in aspx page for Inserting Information (filename,description,...)
can I access to image information in click event of button?
If not what can I do instead?

Thanks a lot