private void btnSearch_Click(object sender, EventArgs e) { switch (main.TabControl.SelectedTab.Text) { case "Account": Search.Account(main); break; case "Bill": Search.Bill(main); break; case "Customer": Search.Customer(main); break; case "Employee": Search.Employee(main); break; case "Product": Search.Product(main); break; case "Request": Search.Request(main); break; case "Statistic": Search.Statistic(main); break; } }