public AdminGenerateRequier() { try { centers = controller.GetDBCenters(); products = controller.GetDBProducts(); InitializeComponent(); FromCenter.ItemsSource = centers; FromCenter.DisplayMemberPath = "CenterName"; ToCenter.ItemsSource = centers; ToCenter.DisplayMemberPath = "CenterName"; Products.ItemsSource = products; Products.DisplayMemberPath = "Name"; } catch (Exception ex) { MessageBox.Show(ex.Message); } }