As far as I know, you have to either write the synchronization yourself or use a 3rd party tool. There are a few possibilities if you're interested on those tools.
For example:
-
SQLITE-SYNC[
^]. They seem to have a free version
-
SQLite to MSSQL Synchronization[
^]. Thiss one needs to be licensed
On the other hand perhaps you could consider using SQL Server on both ends? This would make the synchronization far more easy. If you need a single user standalone database on the client side, then perhaps
SQL Server Compact[
^] could replace SQLite.