private void frmDeviceManagement_Load_1(object sender, EventArgs e)
        {
            btnXoa.Enabled = false;
            btnSua.Enabled = false;
            createListView(lvwThietBi);
            Equipment = new clsDevice();

            ListEquipment = Equipment.getListEquipment();
            LoadItemToView(lvwThietBi, ListEquipment);
            txtTimKiem.AutoCompleteMode   = AutoCompleteMode.Suggest;
            txtTimKiem.AutoCompleteSource = AutoCompleteSource.CustomSource;
        }
 private void btnALL_Click(object sender, EventArgs e)
 {
     ListEquipment = Equipment.getListEquipment();
     LoadItemToView(lvwThietBi, ListEquipment);
 }