public void AttachAdditions(List <ResAddition> ra)
{
_dataContext.ResAdditions.AttachAll(ra);
_dataContext.Refresh(RefreshMode.KeepCurrentValues, ra);
}
public void AttachBuffers(List <ResBuffer> rb)
{
_dataContext.ResBuffers.AttachAll(rb);
_dataContext.Refresh(RefreshMode.KeepCurrentValues, rb);
}