Wino-Mail/Wino.Calendar/Controls/AllDayItemsControl.xaml

<UserControl
    x:Class="Wino.Calendar.Controls.AllDayItemsControl"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:calendarHelpers="using:Wino.Calendar.Helpers"
    xmlns:controls="using:Wino.Calendar.Controls"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:data="using:Wino.Calendar.ViewModels.Data"
    xmlns:domain="using:Wino.Core.Domain"
    xmlns:helpers="using:Wino.Helpers"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    d:DesignHeight="300"
    d:DesignWidth="400"
    mc:Ignorable="d">

    <Grid>
        <controls:CalendarItemControl
            x:Name="SingleAllDayEventHolder"
            CalendarItem="{x:Bind calendarHelpers:CalendarXamlHelpers.GetFirstAllDayEvent(EventCollection), Mode=OneWay}"
            Visibility="{x:Bind helpers:XamlHelpers.CountToVisibilityConverter(EventCollection.AllDayEvents.Count), Mode=OneWay}" />

        <Button
            x:Name="AllDayItemsSummaryButton"
            HorizontalAlignment="Stretch"
            VerticalAlignment="Stretch"
            Visibility="Collapsed">
            <Button.Flyout>
                <Flyout Placement="Bottom">
                    <ScrollViewer>
                        <ItemsControl ItemTemplate="{x:Bind RegularEventItemTemplate}" ItemsSource="{x:Bind EventCollection.AllDayEvents}" />
                    </ScrollViewer>
                </Flyout>
            </Button.Flyout>
        </Button>

        <VisualStateManager.VisualStateGroups>
            <VisualStateGroup x:Name="ViewStates">
                <VisualState x:Name="FullView" />
                <VisualState x:Name="SummaryView">
                    <VisualState.Setters>
                        <Setter Target="SingleAllDayEventHolder.Visibility" Value="Collapsed" />
                        <Setter Target="AllDayItemsSummaryButton.Visibility" Value="Visible" />
                        <Setter Target="AllDayItemsSummaryButton.Content">
                            <Setter.Value>
                                <TextBlock>
                                    <Run Text="{x:Bind EventCollection.AllDayEvents.Count, Mode=OneWay, TargetNullValue='0'}" /> <Run Text="{x:Bind domain:Translator.CalendarAllDayEventSummary}" />
                                </TextBlock>
                            </Setter.Value>
                        </Setter>
                    </VisualState.Setters>
                    <VisualState.StateTriggers>
                        <StateTrigger IsActive="{x:Bind helpers:XamlHelpers.IsMultiple(EventCollection.AllDayEvents.Count), Mode=OneWay, FallbackValue='False'}" />
                    </VisualState.StateTriggers>
                </VisualState>
            </VisualStateGroup>
        </VisualStateManager.VisualStateGroups>
    </Grid>
</UserControl>