InfoPath Dev

Hi,

I've created a repeating table for file attachment. For each row, there is a column for filename from file attachment. With the following source code, it seems to work perfect.

But then, the below C# source code doesn't work after I added a new row inside the repeating table. It only work on the 1st row only.

XPathNavigator attachmentNav = MainDataSource.CreateNavigator();

string attachedFile = attachmentNav.SelectSingleNode("/my:myFields/my:group1/my:theAttachmendField", NamespaceManager).Value;
attachmentNav = attachmentNav.SelectSingleNode("/my:myFields/my:group1/my:theAttachmendField", NamespaceManager);
            
if (attachmentNav != null && !String.IsNullOrEmpty(attachmentNav.Value))
            {
                // Delete the encoded file form XML form
                //attachmentNav.SetValue("");

                // Convert the base64 encoded string into a byte array
                InfoPathAttachmentDecoder decoder = new InfoPathAttachmentDecoder(attachedFile);
                byte[] attachment = decoder.DecodedAttachment;
                string fileName = decoder.Filename;

                attachmentNav.SelectSingleNode("/my:myFields/my:group1/my:theAttachmentName", NamespaceManager).SetValue(fileName);
                //attachmentNav.SelectSingleNode("/my:myFields/my:group1/my:FilePath", NamespaceManager).SetValue(attachedFile);
            }