Ado.net Synchronize

Hmmm...
i've try the sync one.
you just add new item localchace and
set where the Server reside.
and it will generate you everything including the client sql server compact.
you just say NameofYourChaceSyncAgent.Synchronize

and add this extracode for your localcache

partial class NameofYourChaceServerSyncProvider
{
protected override void OnApplyChangeFailed(Microsoft.Synchronization.Data.ApplyChangeFailedEventArgs value)
{
DataTable clientchanges = value.Conflict.ClientChange;
DataTable serverchanges = value.Conflict.ServerChange;
value.Action = ApplyAction.RetryWithForceWrite;
}
protected override void OnApplyingChanges(ApplyingChangesEventArgs value)
{
DataSet clientchanges = value.Changes;
}
}