private bool IsUniqueCustomerId(int id) { CustomerContext context = new CustomerContext(); if (context.Customer.Any(x => x.CustomerId == id)) return false; return true; }
public OrderDetailsForm(Customer selectedCustomer, CustomerContext context, Order editOrder = null) { _context = context; InitializeComponent(); this.comboBoxClient.DataSource = _context.Customer.Local.ToBindingList(); if (editOrder != null) // edit order { _order = editOrder; _updateMode = true; SetInitialData(editOrder); } else // add new order { _order = new Order(); _updateMode = false; if (selectedCustomer != null) this.comboBoxClient.SelectedValue = selectedCustomer.CustomerId; } this.Shown += OrderDetailsForm_Shown; }