private void txtStation_Leave(object sender, EventArgs e)
 {
     AutocompletionUtils.TextFieldLeave(lstAutocompleteStation);
 }
 private void txtAbfahrtsort_Leave(object sender, EventArgs e)
 {
     AutocompletionUtils.TextFieldLeave(lstAutocompleteAbfahrt);
 }
 private void txtZielort_Leave(object sender, EventArgs e)
 {
     AutocompletionUtils.TextFieldLeave(lstAutocompleteZiel);
 }