How do I do a SQL Sync?

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C#

SQL

Hello

I have 2 laptops with both their own SQL Express 2012 database programs. But I need to be able to sync data between them with open options. What I mean is that while one laptop is in anther part of the world for example, still to be able to sync.

We don't have a internet sql server to use.

My initial though was to create (not sure how yet) for example a .xml with the data which could then be send via internet/mail/dropbox/etc to the other pc and visa versa.

The sync needs to be able to send new data, as well as update data... don't think we will need to delete any data.

So far the database is a simple Client Info database, but will grow once I have a sync solution.

So my question, what is there in C# or .Net I could use? I saw the Microsoft Sync Framework, but don't really see how to work with that. (Other that sending a .mdf visa versa)

Or, what options with .xml do I have?

Thanks