sharee.bike-App/Meinkonrad/TINK/View/Contact/ContactPage.xaml

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
            xmlns:conv="clr-namespace:TINK.View"
            xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
            xmlns:resources="clr-namespace:TINK.MultilingualResources;assembly=TINKLib"
            x:Class="TINK.View.Contact.ContactPage"
            Title="{x:Static resources:AppResources.MarkingContactPageTitle}">
    <ContentPage.Resources>
        <conv:StringNotNullOrEmptyToVisibleConverter x:Key="StringNotNullOrEmpty_Converter"/>
        <conv:BoolInverterConverter x:Key="BoolInvert_Converter"/>
    </ContentPage.Resources>
    <ContentPage.Content>
        <ScrollView>
            <Frame>
                <StackLayout x:Name="ContactPageView">
                    <Frame 
                        IsVisible="{Binding 
                            Path=IsOperatorInfoAvaliable,
                            Converter={StaticResource BoolInvert_Converter}}">
                        <!-- Button to select station and explanation text -->
                        <StackLayout>
                        <Label
                            TextType="Html"
                            Text="{x:Static resources:AppResources.MarkingContactNoStationInfoAvailableNoButton}"/>
                        <Button
                            Text="{x:Static resources:AppResources.ActionSelectStation}"
                            Command="{Binding OnSelectStationRequest}"/>
                        </StackLayout>
                    </Frame>
                    <Frame
                        IsVisible="{Binding IsOperatorInfoAvaliable}">
                        <!-- Operator info -->
                        <StackLayout>
                            <Label                                
                                IsVisible="{Binding IsOperatorInfoAvaliable}"
                                HorizontalOptions="Center"
                                FontAttributes="Bold"
                                Text="{Binding ProviderNameText}"/>
                            <!--- Mail address -->
                            <Label 
                                IsVisible="{Binding MailAddressText, Converter={StaticResource StringNotNullOrEmpty_Converter}}"
                                FormattedText="{Binding MailAddressAndMotivationsText}"/>
                            <Button
                                x:Name="MailAddressButton"
                                IsVisible="{Binding MailAddressText, Converter={StaticResource StringNotNullOrEmpty_Converter}}"
                                Text="{Binding MailAddressText}"
                                IsEnabled="{Binding IsSendMailAvailable}"
                                Command="{Binding OnMailRequest}"/>
                            <!--- Mail address -->
                            <Label 
                                IsVisible="{Binding PhoneNumberText, Converter={StaticResource StringNotNullOrEmpty_Converter}}"
                                FormattedText="{Binding PhoneContactText}"/>
                            <Button 
                                x:Name="PhoneNumberButton"
                                IsVisible="{Binding PhoneNumberText, Converter={StaticResource StringNotNullOrEmpty_Converter}}"
                                Text="{Binding PhoneNumberText}"
                                IsEnabled="{Binding IsDoPhoncallAvailable}"
                                Command="{Binding OnPhoneRequest}"/>
                        </StackLayout>
                    </Frame>
                    <Frame>
                        <StackLayout>
                            <Label FormattedText="{Binding LikeTinkApp}"/>
                            <Button Text="{x:Static resources:AppResources.ActionContactRate}"
                                Command="{Binding OnRateRequest}"/>
                        </StackLayout>
                    </Frame>
                </StackLayout>
            </Frame>
        </ScrollView>
    </ContentPage.Content>
</ContentPage>