private void Button_Click(object sender, RoutedEventArgs e) { if (Descr.Text == string.Empty || Date.Text == string.Empty) { MessageBox.Show("Заполните поля!!!"); } else { Price.Text.Replace('.', ','); DatabaseWorker.InsertTreatment(Price.Text, Descr.Text, id_Patient, Date.Text); DatabaseWorker.InsertDepth(Price.Text, Descr.Text, id_Patient, Date.Text); DatabaseWorker.InsertTransaction(Price.Text, Descr.Text, id_Patient, Date.Text); this.Close(); } }