Kepler-Release/Venus/Venus_MainPages/Views/NewRecipeSequenceSelectView.xaml

<Window x:Class="Venus_MainPages.Views.NewRecipeSequenceSelectView"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
        mc:Ignorable="d"
        WindowStartupLocation="CenterOwner"
        WindowStyle="SingleBorderWindow" ResizeMode="NoResize" ShowInTaskbar="False"
        Background="LightSkyBlue" Width="1200" Height="500" Name="recipeSequenceSelect" Loaded="Window_Loaded">
    <Window.Resources>
        <HierarchicalDataTemplate x:Key="FileTemplate" ItemsSource="{Binding Files}">
            <StackPanel>
                <TextBlock Text="{Binding Name}" />
            </StackPanel>
        </HierarchicalDataTemplate>
    </Window.Resources>
    <Border BorderBrush="Gray" BorderThickness="0,1,0,0" >
        <Grid Margin="20,30">
            <Grid.RowDefinitions>
                <RowDefinition />
                <RowDefinition Height="auto"/>
            </Grid.RowDefinitions>
            <Grid>
                <Grid.ColumnDefinitions>
                    <ColumnDefinition/>
                    <ColumnDefinition/>
                    <ColumnDefinition/>
                    <ColumnDefinition/>

                </Grid.ColumnDefinitions>
                <GroupBox Header="Pre Lot Clean" Grid.Column="0">
                    <Border  BorderBrush="{DynamicResource Table_BD}" BorderThickness="1" Background="White">
                        <TreeView x:Name="PreLotTreeView"  Margin="5" ItemsSource="{Binding Files[0].Files}" ItemTemplate="{StaticResource FileTemplate}"
                       VirtualizingPanel.IsVirtualizing="True" VirtualizingPanel.VirtualizationMode="Recycling" SelectedItemChanged="PreClean_PART_TREE_SelectedItemChanged"
                       Height="{Binding Path=ActualHeight,ElementName=PART_BORDER, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}">
                            <!--Height should add for VirtualizingPanel, otherwise the App will be slow-->
                            <TreeView.ItemContainerStyle>
                                <Style TargetType="{x:Type TreeViewItem}" BasedOn="{StaticResource ResourceKey={x:Type TreeViewItem}}">
                                    <Setter Property="IsExpanded" Value="True"></Setter>
                                </Style>
                            </TreeView.ItemContainerStyle>
                        </TreeView>
                    </Border>

                </GroupBox>
                <GroupBox Header="Process" Grid.Column="1">
                    <Border BorderBrush="{DynamicResource Table_BD}" BorderThickness="1" Background="White">
                        <TreeView  x:Name="ProcessTreeView" Margin="5" ItemsSource="{Binding Files[1].Files}" ItemTemplate="{StaticResource FileTemplate}"
                       VirtualizingPanel.IsVirtualizing="True" VirtualizingPanel.VirtualizationMode="Recycling" SelectedItemChanged="Process_PART_TREE_SelectedItemChanged"
                       Height="{Binding Path=ActualHeight,ElementName=PART_BORDER, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}">
                            <!--Height should add for VirtualizingPanel, otherwise the App will be slow-->
                            <TreeView.ItemContainerStyle>
                                <Style TargetType="{x:Type TreeViewItem}" BasedOn="{StaticResource ResourceKey={x:Type TreeViewItem}}">
                                    <Setter Property="IsExpanded" Value="True"></Setter>
                                </Style>
                            </TreeView.ItemContainerStyle>
                        </TreeView>
                    </Border>
                </GroupBox>
                <GroupBox Header="WTW Clean" Grid.Column="2">
                    <Border  BorderBrush="{DynamicResource Table_BD}" BorderThickness="1" Background="White">
                        <TreeView  x:Name="WTWTreeView" Margin="5" ItemsSource="{Binding Files[0].Files}" ItemTemplate="{StaticResource FileTemplate}"
                       VirtualizingPanel.IsVirtualizing="True" VirtualizingPanel.VirtualizationMode="Recycling" SelectedItemChanged="WTWClean_PART_TREE_SelectedItemChanged"
                       Height="{Binding Path=ActualHeight,ElementName=PART_BORDER, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}">
                            <!--Height should add for VirtualizingPanel, otherwise the App will be slow-->
                            <TreeView.ItemContainerStyle>
                                <Style TargetType="{x:Type TreeViewItem}" BasedOn="{StaticResource ResourceKey={x:Type TreeViewItem}}">
                                    <Setter Property="IsExpanded" Value="True"></Setter>
                                </Style>
                            </TreeView.ItemContainerStyle>
                        </TreeView>
                    </Border>
                </GroupBox>

                <GroupBox Header="Post Lot Clean" Grid.Column="3">
                    <Border  BorderBrush="{DynamicResource Table_BD}" BorderThickness="1" Background="White">
                        <TreeView  x:Name="PostLotTreeView" Margin="5" ItemsSource="{Binding Files[0].Files}" ItemTemplate="{StaticResource FileTemplate}"
                       VirtualizingPanel.IsVirtualizing="True" VirtualizingPanel.VirtualizationMode="Recycling" SelectedItemChanged="PostClean_PART_TREE_SelectedItemChanged"
                       Height="{Binding Path=ActualHeight,ElementName=PART_BORDER, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}">
                            <!--Height should add for VirtualizingPanel, otherwise the App will be slow-->
                            <TreeView.ItemContainerStyle>
                                <Style TargetType="{x:Type TreeViewItem}" BasedOn="{StaticResource ResourceKey={x:Type TreeViewItem}}">
                                    <Setter Property="IsExpanded" Value="True"></Setter>
                                </Style>
                            </TreeView.ItemContainerStyle>
                        </TreeView>
                    </Border>
                </GroupBox>


            </Grid>
            <StackPanel Grid.Row="1" Margin="0,10,0,0" Orientation="Horizontal" HorizontalAlignment="Center">
                <Button Content="OK" Width="90" Height="30" Click="buttonOK_Click" x:Name="buttonOK"/>
                <Button Content="Cancel" Margin="10,0,0,0" Width="90" Height="30" Click="buttonCancel_Click" x:Name="buttonCancel"/>
            </StackPanel>
        </Grid>
    </Border>
</Window>