Jugenddienst-Stunden/Jugenddienst Stunden/Views/StundePage.xaml

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:models="clr-namespace:Jugenddienst_Stunden.ViewModels"
             xmlns:conv="clr-namespace:Jugenddienst_Stunden.Converter"
             x:Class="Jugenddienst_Stunden.Views.StundePage"
             Title="{Binding Title}">

    <ContentPage.BindingContext>
        <models:StundeViewModel />
    </ContentPage.BindingContext>

    <ContentPage.Resources>
        <ResourceDictionary>
            <conv:IntBoolConverter x:Key="IntBoolConverter" />
        </ResourceDictionary>
    </ContentPage.Resources>

    <VerticalStackLayout Spacing="10" Margin="10">

        <Label Text="{Binding SubTitle}" />

        <Frame Padding="5,2,5,10">
            <FlexLayout Direction="Row" AlignItems="Start" Wrap="Wrap" JustifyContent="SpaceBetween">

                <HorizontalStackLayout>
                    <Label Text="Beginn" VerticalTextAlignment="Center" HorizontalTextAlignment="End" Padding="0,0,10,0" Margin="5,0,0,0" MinimumWidthRequest="60"></Label>
                    <TimePicker x:Name="TimeBegin" HorizontalOptions="Center" Format="HH:mm" MinimumWidthRequest="80" Time="{Binding DayTime.TimeSpanVon}" Margin="0,0,0,-5" />
                </HorizontalStackLayout>

                <HorizontalStackLayout>
                    <Label Text="Ende" VerticalTextAlignment="Center" HorizontalTextAlignment="End" Padding="0,0,10,0" Margin="5,0,0,0" MinimumWidthRequest="60"></Label>
                    <TimePicker x:Name="TimeEnd" Format="HH:mm" MinimumWidthRequest="80" Time="{Binding DayTime.TimeSpanBis}" Margin="0,0,0,-5" />
                </HorizontalStackLayout>

            </FlexLayout>
        </Frame>

        <Frame Padding="5,2,5,10">
            <Grid ColumnDefinitions="*,*,*">
                <Picker x:Name="pick_gemeinde" Title="Gemeinde" ItemsSource="{Binding OptionsGemeinde}" SelectedItem="{Binding DayTime.GemeindeAktiv, Mode=TwoWay}" ItemDisplayBinding="{Binding Name}" Grid.Column="0" IsVisible="{Binding GemeindeAktivSet}">
                </Picker>
                <Picker x:Name="pick_projekt" Title="Projekt" ItemsSource="{Binding OptionsProjekt}" SelectedItem="{Binding DayTime.ProjektAktiv, Mode=TwoWay}" ItemDisplayBinding="{Binding Name}" Grid.Column="1" IsVisible="{Binding ProjektAktivSet}">
                </Picker>
                <Picker x:Name="pick_freistellung" Title="Freistellung" ItemsSource="{Binding OptionsFreistellung}" SelectedItem="{Binding DayTime.FreistellungAktiv, Mode=TwoWay}" ItemDisplayBinding="{Binding Name}" Grid.Column="2" IsEnabled="{Binding FreistellungEnabled}">
                </Picker>
            </Grid>
        </Frame>

        <Editor  Placeholder="Beschreibung" Text="{Binding DayTime.Description}" MinimumHeightRequest="40" AutoSize="TextChanges" FontSize="18" />


        <Grid ColumnDefinitions="*,*" ColumnSpacing="4">
            <Button Text="Speichern" Command="{Binding SaveCommand}" />
            <Button Grid.Column="1" Text="Löschen" Command="{Binding DeleteConfirmCommand}" IsEnabled="{Binding DayTime.Id, Converter={StaticResource IntBoolConverter}}" IsVisible="{Binding FreistellungEnabled}" />
        </Grid>

        <BoxView HeightRequest="1" Margin="5,10"/>

        <CollectionView 
        ItemsSource="{Binding DayTimes}" 
        x:Name="stundeItems" Margin="0"
        HeightRequest="350"
        SelectionMode="Single"
        SelectionChangedCommand="{Binding SelectEntryCommand}"
        SelectionChangedCommandParameter="{Binding Source={RelativeSource Self}, Path=SelectedItem}">

            <CollectionView.ItemsLayout>
                <LinearItemsLayout Orientation="Vertical" ItemSpacing="0" />
            </CollectionView.ItemsLayout>

            <CollectionView.ItemTemplate>
                <DataTemplate>
                    <Grid Padding="5,10,5,0">
                        <Grid.RowDefinitions>
                            <RowDefinition Height="Auto" />
                            <RowDefinition Height="Auto" />
                        </Grid.RowDefinitions>
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="*" />
                            <ColumnDefinition Width="*" />
                        </Grid.ColumnDefinitions>
                        <HorizontalStackLayout Grid.Row="0" Grid.Column="0">
                            <Label Grid.Column="0" Text="{Binding Begin}"/>
                            <Label Text="bis" Padding="5,0,5,0"/>
                            <Label Text="{Binding End}"/>
                            <Label Text="{Binding GemeindeAktiv.Name}" Margin="10,0,0,0" IsVisible="{Binding Source={RelativeSource AncestorType={x:Type ContentPage}}, Path=BindingContext.GemeindeAktivSet}"/>
                            <Label Text="{Binding ProjektAktiv.Name}" Margin="10,0,0,0" IsVisible="{Binding Source={RelativeSource AncestorType={x:Type ContentPage}}, Path=BindingContext.ProjektAktivSet}"/>
                            <Label Text="{Binding FreistellungAktiv.Name}" Margin="10,0,0,0"/>
                        </HorizontalStackLayout>

                        <Label Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="2" Text="{Binding Description}" Padding="0,0,0,15"/>
                    </Grid>
                </DataTemplate>
            </CollectionView.ItemTemplate>

        </CollectionView>
    </VerticalStackLayout>
</ContentPage>