private void AddWorkerButton_Click(object sender, RoutedEventArgs e) { DataBaseClass.DataBase dataBase = new DataBaseClass.DataBase(DataBaseOption.dataBaseOption); if (CheckFullInfo()) { bool isExistWorker = dataBase.CheckFullStaff(secondNameTextBox.Text, firstNameTextBox.Text, middleNameTextBox.Text, staffComboBox.SelectedItem.ToString()); if (isExistWorker) { MessageBox.Show("Такой работник уже записан"); } else { dataBase.CreateNewWorker(secondNameTextBox.Text, firstNameTextBox.Text, middleNameTextBox.Text, staffComboBox.SelectedItem.ToString()); MessageBox.Show("Уcпешно создан"); dataBase.OutputTableStaff(staffTableDataGrid); } firstNameTextBox.Clear(); secondNameTextBox.Clear(); middleNameTextBox.Clear(); staffComboBox.SelectedIndex = -1; } }