void WriteEndDate(DateTime end)
{
if (_NoPeriod)
{
throw new InvalidOperationException("Can't save job period, cos no period was setted");
}
var single = Logic.GetAll <tblBatchCreationManagerData>().FirstOrDefault();
if (single == null)
{
single = Logic.Create <tblBatchCreationManagerData>();
}
single.LastStartTime = periodStart;
single.LastEndTime = periodStart;
Logic.Save(single);
}