private void Add_Click(object sender, RoutedEventArgs e) { string firstName = AddFirstNameTB.Text.Trim(); string lastName = AddLastNameTB.Text.Trim(); string fen = AddFENTB.Text.Trim(); if (commander.IsInputInvalid(firstName, "First name") || commander.IsInputInvalid(lastName, "Last name")) { MessageBox.Show($"Invalid name value."); return; } if (!commander.LettersInputOnly(firstName)) { MessageBox.Show($"First name must consist of letter only."); return; } if (!commander.LettersInputOnly(lastName)) { MessageBox.Show($"Last name must consist of letter only."); return; } if (fen.Length > 0 && fen.Length < 8) { MessageBox.Show($"FEN must consist of 8-10 letters or digits or must be empty."); return; } if (!commander.LettersAndDigitsInputOnly(fen)) { MessageBox.Show($"FEN must consist of letters or digits only, {fen} is not valid FEN number"); return; } var duplicatedClient = db.Clients.SingleOrDefault(x => x.client_first_name.ToLower() == firstName.ToLower() && x.client_name.ToLower() == lastName.ToLower() && x.firm_evidence_number.ToLower() == fen.ToLower()); if (duplicatedClient != null) { MessageBox.Show($"Client already exists.\nID: {duplicatedClient.client_id}, {duplicatedClient.client_first_name} {duplicatedClient.client_name}, FEN: {duplicatedClient.firm_evidence_number}"); return; } Clients newClient = new Clients(); newClient.client_first_name = firstName; newClient.client_name = lastName; newClient.firm_evidence_number = fen; db.Clients.Add(newClient); db.SaveChanges(); MessageBox.Show($"Successfully created client:\nID: {newClient.client_id}, {newClient.client_first_name} {newClient.client_name}, FEN: {newClient.firm_evidence_number}"); AddFirstNameTB.Text = "First name"; AddLastNameTB.Text = "Last name"; AddFENTB.Text = "FEN"; }
private void Find_Click(object sender, RoutedEventArgs e) { string firstName = FindFirstNameTB.Text.Trim(); string lastName = FindLastNameTB.Text.Trim(); if (commander.IsInputInvalid(firstName, "First name") || commander.IsInputInvalid(lastName, "Last name") || !commander.LettersInputOnly(firstName) || !commander.LettersInputOnly(lastName)) { MessageBox.Show("Invalid first name or last name values."); return; } var foundEmployees = db.Employees.Where(x => x.employee_first_name.ToLower() == firstName.ToLower() && x.employee_name.ToLower() == lastName.ToLower()); if (foundEmployees.Count() == 0) { MessageBox.Show($"No employees named {firstName} {lastName} found."); return; } StringBuilder sb = new StringBuilder(); foreach (var emp in foundEmployees) { sb.Append($"ID: {emp.employee_id}, {emp.employee_first_name} {emp.employee_name}\n"); } MessageBox.Show($"Employees found:\n{sb}"); FindFirstNameTB.Text = "First name"; FindLastNameTB.Text = "Last name"; }