private void button3_Click(object sender, EventArgs e)
        {
               Network_buildingEntities context = new Network_buildingEntities();
               foreach (var em in context.Employees)
               {
                   int i = 2;
                   int j = 2;
                       if (em.Skills.Router_setup =="+")
                       {
                           Bids Bid = new Bids();
                           Bid.BidID = i;
                           Bid.BuildID = j;
                           Bid.TechID = em.TechID;
                           Bid.Status_of_operations = "InProgress";
                           Bid.Dates = DateTime.Today;
                           context.Bids.Add(Bid);
                           i = i + 1;
                           j = j + 1;
                       }
               }         
               context.SaveChanges(); //ЭТО РАБОТАЕТ НО ТОЛЬКО ДЛЯ 1
               this.bidsTableAdapter.Fill(this.network_buildingDataSet.Bids); 
        }