Drag and drop in CRM7?

Dear Experts,

We are exploring the drag and drop functionnality for our client in SAP CRM7 standalone.

I have found this solution in the scn http://scn.sap.com/community/developer-center/netweaver-gateway/blog/2014/11/12/file-uploaddownload-in-crm-webui-using-net-weaver-gatewayodata-services .

However, I am new to SAP CRM and would like to know if this is a potential solution?  Has already implemented it before?

Thanks a lot for your feedback,

Regards,

Emilie