private void AddLogisticsForm_Load(object sender, EventArgs e)
 {
     htWareHouse = LogisticCtrl.listWarehouse();
     comboBox1.Items.Clear();
     foreach (DictionaryEntry de in htWareHouse)
     {
         comboBox1.Items.Add((string)de.Key);
     }
     LogisticCtrl.loadProduct(null, listView1);
     LogisticCtrl.loadCompany(listView2);
     LogisticCtrl.loadReadyToChoose(listView4);
     choose.Clear();
 }
        private void Button1_Click(object sender, EventArgs e)
        {
            string warehouseNo = (string)htWareHouse[comboBox1.Text];

            LogisticCtrl.loadProduct(warehouseNo, listView1);
        }