If you’re having a few issues adding attachments via ajax and SPServices on SharePoint have a look over the code snippets below.
I’ve been asked a few times to add the ability to upload attachments to SharePoint tools that I’ve created, and I’ve never been able to achieve it until I eventually came across this blog post last week.
If (like me) you’re developing in a front-end only way without any server-side programming then it seems like this is the way to upload files and attach them to SharePoint list items.
With much work and even more googling I was able to get this technique to work in Internet Explorer 9. In the future I’ll write more about how I managed it, and how you can too!