Tuning Up The TreeView - Part 2

<Window x:Class="DirectoryTree.VM.Main"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:scm="clr-namespace:System.ComponentModel;assembly=WindowsBase"
        xmlns:appvm="clr-namespace:DirectoryTree.VM"
        Title="Directory Tree Prototype - Hierarchical Binding"
        Height="500" Width="550" >

<!-- History: 2/2010 - Lee Robie - robiesw@cinci.rr.com -->  
<Grid>
   <Grid.RowDefinitions>
      <RowDefinition Height="33" />       <!-- Action Buttons-->
      <RowDefinition Height="2"  />
      <RowDefinition Height="*"  />       <!-- Tree Contents -->
   </Grid.RowDefinitions>

   <StackPanel Orientation="Horizontal" Grid.Row="0" Grid.Column="0" >
      <StackPanel.Resources>
         <Style TargetType="{x:Type Label}">
            <Setter Property="FontSize"            Value="12" />
            <Setter Property="Padding"             Value="0, 2, 0, 2" />
            <Setter Property="Margin"              Value="3, 6, 0, 1" />
         </Style>
         
         <Style TargetType="{x:Type Button}">
            <Setter Property="VerticalAlignment"   Value="Top" />
            <Setter Property="Width"               Value="70" />
            <Setter Property="Padding"             Value="2, 1" />
            <Setter Property="Margin"              Value="2, 4, 10, 2" />
         </Style>
        
      </StackPanel.Resources>

      <Button Name="btnSort"    Content="Sort by Name" Width="80"
              Margin="20, 4, 10, 2" />
      <Button Name="btnFilter"  Content="Filter: None" Width="80"
              Margin="2, 4, 10, 2" />
      
      <Label Content="CRUD:"  Margin="20,6,10,2"  />

      <Button Name="btnAdd"      Content="_Add Dir"       ToolTip="C-Create" />
      <Button Name="btnDump"     Content="_Dump"          ToolTip="R-Read"   />
      <Button Name="btnRename"   Content="_Rename Dir"    ToolTip="U-Update" />
      <Button Name="btnDelete"   Content="_Delete Dir"    ToolTip="D-Delete" />

   </StackPanel>
   
   <Rectangle Grid.Row="1" Grid.ColumnSpan="2" Height="1" Fill="LightGray" />
  
   <TreeView Name="tvDirTree"
             ItemsSource="{Binding Path=Drives}"
             Grid.Row="2"
             BorderThickness="0" >

      <TreeView.Resources>
         
         <ContextMenu x:Key="DriveMenu">
            <MenuItem Header="Refresh" Click="DoRefreshDrive" />
         </ContextMenu>

         <Style x:Key="TreeText" TargetType="{x:Type TextBlock}" >
            <Setter Property="Foreground" Value="Black" />
            <Style.Triggers>
               <DataTrigger Binding="{Binding Path=Temperature}" 
                            Value="{x:Static appvm:DirTemp.Invalid}" >
                  <Setter Property="Foreground" Value="Lightgray" />
               </DataTrigger>
            </Style.Triggers>
         </Style>
         
         <!-- Following style needed to avoid binding error during sort -->
         <Style TargetType="{x:Type TreeViewItem}">
            <Setter Property="HorizontalContentAlignment" Value="Left" />
            <Setter Property="VerticalContentAlignment" Value="Center" />
         </Style>
         
         <HierarchicalDataTemplate DataType="{x:Type appvm:Drive}" 
                                   ItemsSource="{Binding Path=ChildrenView}" >
             <StackPanel Orientation="Horizontal">
               <Image Width="14" Height="14" 
                      Source="{StaticResource imgHardDisk}" />
               <TextBlock Text="{Binding Path=Name}" />
            </StackPanel>
         </HierarchicalDataTemplate>
         
         <Style x:Key="FolderImage" TargetType="{x:Type Image}" >
            <Setter Property="Source" Value="{StaticResource imgFolder}" />
            <Style.Triggers>
               <DataTrigger Binding="{Binding Path=Temperature}" 
                            Value="{x:Static appvm:DirTemp.Invalid}" >
                  <Setter Property="Source" Value="{StaticResource imgFolderInvalid}" />
               </DataTrigger>
               <DataTrigger Binding="{Binding Path=Temperature}" 
                            Value="{x:Static appvm:DirTemp.Empty}" >
                  <Setter Property="Source" Value="{StaticResource imgFolderEmpty}" />
               </DataTrigger>
               <DataTrigger Binding="{Binding Path=Temperature}" 
                            Value="{x:Static appvm:DirTemp.Cold}" >
                  <Setter Property="Source" Value="{StaticResource imgFolderCold}" />
               </DataTrigger>
               <DataTrigger Binding="{Binding Path=Temperature}" 
                            Value="{x:Static appvm:DirTemp.Hot}" >
                  <Setter Property="Source" Value="{StaticResource imgFolderHot}" />
               </DataTrigger>
            </Style.Triggers>
         </Style>

         <HierarchicalDataTemplate DataType="{x:Type appvm:Directory}" 
                                   ItemsSource="{Binding Path=ChildrenView}" >
             <StackPanel Orientation="Horizontal" >
                <Image Style="{StaticResource FolderImage}"
                       Width="14" Height="14" 
                       Margin="0, 0, 4, 0" />
                <TextBlock Text="{Binding Path=Name}"
                           Style="{StaticResource TreeText}" />
             </StackPanel>
         </HierarchicalDataTemplate>
         
      </TreeView.Resources>

      <TreeView.ItemContainerStyle>
         <!-- This Style binds a WPF TreeViewItem to a TreeNode.  -->
         <Style TargetType="{x:Type TreeViewItem}">
            <EventSetter Event="TreeViewItem.MouseRightButtonDown"  
                         Handler="DoMouseRtButton" />
            <EventSetter Event="TreeViewItem.ContextMenuOpening"  
                         Handler="DoContextMenuOpening" />
            <Setter Property="ContextMenu" 
                    Value="{Binding Source={StaticResource DriveMenu}}"/>
            
            <Setter Property="IsExpanded" Value="{Binding Path=IsExpanded, Mode=TwoWay}" />
            <Setter Property="FontWeight" Value="Normal" />

            <!-- Following styles needed to avoid binding error during sort -->
            <Setter Property="HorizontalContentAlignment" Value="Left" />
            <Setter Property="VerticalContentAlignment" Value="Center" />

            <Style.Triggers>
               <Trigger Property="IsSelected" Value="True">
                  <Setter Property="FontWeight" Value="Bold" />
               </Trigger>
            </Style.Triggers>
        </Style>
      </TreeView.ItemContainerStyle>
   </TreeView>
   
</Grid>
</Window>