private void TBWeb_TextChanged(object sender, TextChangedEventArgs e)
 {
     RegexLib.RegexMatcher(RegexLib.IsURLValid, TBWeb.Text, TBWeb);
     areFieldsValid();
 }
 private void TBEmail_TextChanged(object sender, TextChangedEventArgs e)
 {
     RegexLib.RegexMatcher(RegexLib.IsEmailValid, TBEmail.Text, TBEmail);
     areFieldsValid();
 }
 private void TBTagespreis_TextChanged(object sender, TextChangedEventArgs e)
 {
     RegexLib.RegexMatcher(RegexLib.IsDailyPriceValid, TBTagespreis.Text, TBTagespreis);
     areFieldsValid();
 }
 private void TBTelefon_TextChanged(object sender, TextChangedEventArgs e)
 {
     RegexLib.RegexMatcher(RegexLib.IsTelephonenumberValid, TBTelefon.Text, TBTelefon);
     areFieldsValid();
 }
 private void TBAnzahlZimmer_TextChanged(object sender, TextChangedEventArgs e)
 {
     RegexLib.RegexMatcher(RegexLib.IsCountOfRoomsValid, TBAnzahlZimmer.Text, TBAnzahlZimmer);
     areFieldsValid();
 }
 private void TBManager_TextChanged(object sender, TextChangedEventArgs e)
 {
     RegexLib.RegexMatcher(RegexLib.IsManageValid, TBManager.Text, TBManager);
     areFieldsValid();
 }
 private void TBSterne_TextChanged(object sender, TextChangedEventArgs e)
 {
     RegexLib.RegexMatcher(RegexLib.AreStarsValid, TBSterne.Text, TBSterne);
     areFieldsValid();
 }
 private void TBOrt_TextChanged(object sender, TextChangedEventArgs e)
 {
     RegexLib.RegexMatcher(RegexLib.IsLocationValid, TBOrt.Text, TBOrt);
     areFieldsValid();
 }
 private void TBName_TextChanged(object sender, TextChangedEventArgs e)
 {
     RegexLib.RegexMatcher(RegexLib.IsNameValid, TBName.Text, TBName);
     areFieldsValid();
 }