ListViewDemo.xaml

<Window x:Class="ListViewBox.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:system="clr-namespace:System;assembly=mscorlib"
        Title="MainWindow" Height="350" Width="525">
    <Window.Resources>
        <DataTemplate x:Key="Boxes" DataType="{x:Type system:DateTime}">
            <Border Background="Beige" Height="200" Width="299">
                <TextBlock Text="{Binding DayOfWeek}"></TextBlock>
            </Border>
        </DataTemplate>
        
        <DataTemplate x:Key="Circles" DataType="{x:Type system:DateTime}">
            <Grid>
                <Ellipse Fill="LightBlue" Height="200" Width="299"/>
                <TextBlock Text="{Binding Year}" HorizontalAlignment="Center" VerticalAlignment="Center"/>
            </Grid>
        </DataTemplate>
        
        <ItemsPanelTemplate x:Key="Wrap">
            <WrapPanel/>
        </ItemsPanelTemplate>
        
        <ItemsPanelTemplate x:Key="Stack">
            <StackPanel/>
        </ItemsPanelTemplate>
    </Window.Resources>
    <Grid>
        <ListView ItemTemplate="{StaticResource Circles}" ItemsPanel="{StaticResource Wrap}">
            <system:DateTime>2013-12-25</system:DateTime>
            <system:DateTime>2013-12-26</system:DateTime>
            <system:DateTime>2013-12-27</system:DateTime>
            <system:DateTime>2013-12-28</system:DateTime>
        </ListView>
    </Grid>
</Window>