private void submitFeatureButton_Click(object sender, RoutedEventArgs e) { if (featureTextBox.Text.Length == 0) { MessageBox.Show("Please enter a feature", "Faild to submit", MessageBoxButton.OK, MessageBoxImage.None); } else { SQLQuery mSQLQuery = new SQLQuery(); mSQLQuery.insertFeature(featureTextBox.Text); MessageBox.Show("Feature added successfully!", "Submission done!", MessageBoxButton.OK, MessageBoxImage.None); } }