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"
			 BackgroundColor="{DynamicResource background-color}">
	
    <Shell.TitleView>
        <Grid ColumnDefinitions="Auto, 1*">
            <Image Style="{StaticResource Image-Navbar}"/>
            <Label Style="{StaticResource Label-Navbar}"
                   Text="{x:Static resources:AppResources.MarkingContactPageTitle}"/>
        </Grid>
    </Shell.TitleView>
	
    <ContentPage.Resources>
        <conv:StringNotNullOrEmptyToVisibleConverter x:Key="StringNotNullOrEmpty_Converter"/>
        <conv:BoolInverterConverter x:Key="BoolInvert_Converter"/>
    </ContentPage.Resources>

	<ContentPage.Content>

		<ScrollView>

			<StackLayout
					x:Name="ContactPageView">

				<Frame
				Padding="10"
				Margin="0,10,0,5"
				HorizontalOptions="FillAndExpand"
				BackgroundColor="White">

					<StackLayout
						Padding="10">

						<!-- Button to select station and explanation text -->
						<StackLayout
							IsVisible="{Binding Path=IsOperatorInfoAvaliable, Converter={StaticResource BoolInvert_Converter}}">

							<Label
								TextType="Html"
								Text="{x:Static resources:AppResources.MarkingContactNoStationInfoAvailableNoButton}"/>
							<Button
								Text="{x:Static resources:AppResources.ActionSelectStation}"
								Command="{Binding OnSelectStationRequest}"/>

						</StackLayout>

						<!-- Contact operator -->
						<StackLayout
							IsVisible="{Binding IsOperatorInfoAvaliable}">

							<!--- Name of operator -->
							<Label                                
									IsVisible="{Binding IsOperatorInfoAvaliable}"
									HorizontalOptions="Center"
									FontAttributes="Bold"
									Text="{Binding ProviderNameText}"/>

							<!--- Mail to operator -->
							<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 OnMailToOperatorRequest}"/>

							<!--- Phone to operator -->
							<Label 
									IsVisible="{Binding PhoneNumberText, Converter={StaticResource StringNotNullOrEmpty_Converter}}"
									FormattedText="{Binding PhoneContactText}"/>

							<Button
									Style="{StaticResource SecondaryButton}"
									x:Name="PhoneNumberButton"
									IsVisible="{Binding PhoneNumberText, Converter={StaticResource StringNotNullOrEmpty_Converter}}"
									Text="{Binding PhoneNumberText}"
									IsEnabled="{Binding IsDoPhoncallAvailable}"
									Command="{Binding OnPhoneRequest}"/>

						</StackLayout>

					</StackLayout>

				</Frame>

				<Frame
					Padding="10"
					Margin="0,5,0,5"
					HorizontalOptions="FillAndExpand"
					BackgroundColor="White">

					<!--- Contact app-developer -->
					<StackLayout
						Padding="10">

						<Label
								FormattedText="{Binding LikeTinkApp}"/>

						<!--- Mail to app-developer -->
						<Button
								Style="{StaticResource SecondaryButton}"
                                Text="{x:Static resources:AppResources.ActionContactMailAppReleated}"
                                IsEnabled="{Binding IsSendMailAvailable}"
                                Command="{Binding OnMailAppRelatedRequest}"/>

					</StackLayout>

				</Frame>

			</StackLayout>

		</ScrollView>

	</ContentPage.Content>
	
</ContentPage>