title: RadAsyncUpload in code behind, how to?
body: <p>My problem is, nothing happens, the code behind doesn't fire...Maybe someone could point me in the right direction. Is it possible to do something like this or am I totaly wrong here? </p>
  
  <p>default.aspx:</p>
  
  <pre><code>    &lt;telerik:RadProgressManager runat="server" ID="RadProgressManager1" /&gt;
      &lt;telerik:RadAsyncUpload runat="server" ID="AsyncUpload1" /&gt;
      &lt;telerik:RadProgressArea runat="server" ID="RadProgressArea1" /&gt;
  </code></pre>
  
  <p>default.aspx.cs:</p>
  
  <pre><code>    protected void AsyncUpload1_FileUploaded(object sender, FileUploadedEventArgs e)
      {
          const string relativePath = "~/Uploads/";
          var filename = e.File.FileName;
          var parentID = Convert.ToInt32(GridView1.SelectedValue);
          var filesize = Convert.ToInt32(e.File.ContentLength);
          var physicalSavePath = MapPath(relativePath) + filename; 
  
          //Store file info in database
              var app_FilesAdapter = new app_FilesTableAdapter();
              app_FilesAdapter.Insert(filename, relativePath + filename, parentID, 1, DateTime.Now, filesize);
  
          //Save physical file on disk
              e.File.SaveAs(physicalSavePath, true);
      }
  </code></pre>