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Create a ListView control that uses a GridView view mode to display a collection of DateTime objects

<Window x: Class="WpfApplication1.Window1"      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"     xmlns:ds="clr-namespace:WpfApplication1">   <Window.Resources>     <ObjectDataProvider x:Key="myDateCollectionDataSource" ObjectType="{x:Type ds:myDateCollection}"/>     <Style x:Key="GridViewColumnHeaderGripper" TargetType="{x:Type Thumb}">       <Setter Property="Height" Value="{Binding Path=ActualHeight,RelativeSource={RelativeSource TemplatedParent}}"/>       <Setter Property="Template">         <Setter.Value>           <ControlTemplate TargetType="{x:Type Thumb}">             <Border>               <Rectangle HorizontalAlignment="Center" Width="1" Fill="Black"/>             </Border>           </ControlTemplate>         </Setter.Value>       </Setter>     </Style>     <Style x:Key="myControlTemplateStyle" TargetType="{x:Type GridViewColumnHeader}">       <Setter Property="Template">         <Setter.Value>           <ControlTemplate TargetType="{x:Type GridViewColumnHeader}">             <Grid Background="LightBlue">               <DockPanel HorizontalAlignment="Center" VerticalAlignment="Center">                 <CheckBox></CheckBox>                 <TextBlock Text="{TemplateBinding Content}" FontSize="16" Foreground="DarkBlue"/>               </DockPanel>               <Canvas>               <Thumb x:Name="PART_HeaderGripper"                      Style="{StaticResource GridViewColumnHeaderGripper}"                      Background="Transparent"                      />             </Canvas>             </Grid>           </ControlTemplate>         </Setter.Value>       </Setter>     </Style>     <Style x:Key="myHeaderStyle" TargetType="{x:Type GridViewColumnHeader}">       <Setter Property="Background" Value="LightBlue"/>     </Style>     <DataTemplate x:Key="myHeaderTemplate">       <DockPanel>         <CheckBox/>         <TextBlock FontSize="16" Foreground="DarkBlue">           <TextBlock.Text>             <Binding/>           </TextBlock.Text>         </TextBlock>       </DockPanel>     </DataTemplate>     <DataTemplate x:Key="myCellTemplateDay">       <DockPanel>         <TextBlock Foreground="DarkBlue" HorizontalAlignment="Center">           <TextBlock.Text>             <Binding Path="Day"/>           </TextBlock.Text>         </TextBlock>       </DockPanel>     </DataTemplate>     <DataTemplate x:Key="myCellTemplateMonth">       <DockPanel>         <TextBlock Foreground="DarkBlue" HorizontalAlignment="Center">           <TextBlock.Text>             <Binding Path="Month"/>           </TextBlock.Text>         </TextBlock>       </DockPanel>     </DataTemplate>     <DataTemplate x:Key="myCellTemplateYear">       <DockPanel>         <TextBlock Foreground="DarkBlue" HorizontalAlignment="Center">           <TextBlock.Text>             <Binding Path="Year"/>           </TextBlock.Text>         </TextBlock>       </DockPanel>     </DataTemplate>   </Window.Resources>   <StackPanel>       <ListView ItemsSource="{Binding Source={StaticResource myDateCollectionDataSource}}"                 HorizontalAlignment="Center">         <ListView.View>           <GridView>             <GridViewColumn Header="Year" Width="80"                   HeaderContainerStyle="{StaticResource myHeaderStyle}"                   HeaderTemplate="{StaticResource myHeaderTemplate}"                   CellTemplate="{StaticResource myCellTemplateYear}"/>             <GridViewColumn Header="Month" Width="80"                   HeaderContainerStyle="{StaticResource myHeaderStyle}"                   HeaderTemplate="{StaticResource myHeaderTemplate}"                   DisplayMemberBinding="{Binding Path=Month}"/>             <GridViewColumn Header="Day" Width="80"                   HeaderContainerStyle="{StaticResource myHeaderStyle}"                   HeaderTemplate="{StaticResource myHeaderTemplate}"                   CellTemplate="{StaticResource myCellTemplateDay}"/>           </GridView>         </ListView.View>       </ListView>   </StackPanel> </Window> //File:Window.xaml.vb Imports System Imports System.Windows Imports System.Windows.Controls Imports System.Windows.Data Imports System.Windows.Documents Imports System.Windows.Media Imports System.Windows.Shapes Imports System.Windows.Controls.Primitives Imports System.Collections.ObjectModel Namespace WpfApplication1   Public Partial Class Window1     Inherits Window   End Class   Public Class myDateCollection     Inherits ObservableCollection(Of DateTime)     Public Sub New()       Add(New DateTime(2005, 1, 1))       Add(New DateTime(2004, 8, 1))       Add(New DateTime(2003, 12, 4))       Add(New DateTime(2004, 2, 18))       Add(New DateTime(2004, 6, 30))     End Sub   End Class End Namespace