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<Window x:Class="TreeViewSample.MainWindow"
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xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
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xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
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xmlns:local="clr-namespace:TreeViewSample"
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mc:Ignorable="d"
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Title="MainWindow" Height="400" Width="400">
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<Grid>
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<Grid.RowDefinitions>
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<RowDefinition Height="*"/>
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<RowDefinition Height="*"/>
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<RowDefinition Height="*"/>
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</Grid.RowDefinitions>
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<TreeView Grid.Row="0" Margin="10">
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<TreeViewItem Header="Level 1" IsExpanded="True">
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<TreeViewItem Header="Level 2.1"/>
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<TreeViewItem Header="Level 2.2" IsExpanded="True">
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<TreeViewItem Header="Level 3.1"/>
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<TreeViewItem Header="Level 3.2"/>
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</TreeViewItem>
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<TreeViewItem Header="Level 2.3"/>
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</TreeViewItem>
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</TreeView>
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<TreeView Grid.Row="1" Margin="10">
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<TreeViewItem IsExpanded="True">
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<TreeViewItem.Header>
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<StackPanel Orientation="Horizontal">
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<Ellipse Width="10" Height="10" Margin="0 0 10 0" Fill="LightBlue"/>
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<TextBlock Text="Level 1 (Blue)"/>
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</StackPanel>
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</TreeViewItem.Header>
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<TreeViewItem>
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<TreeViewItem.Header>
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<StackPanel Orientation="Horizontal">
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<TextBlock Text="Level 2.1" Foreground="Blue"/>
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</StackPanel>
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</TreeViewItem.Header>
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</TreeViewItem>
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<TreeViewItem IsExpanded="True">
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<TreeViewItem.Header>
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<StackPanel Orientation="Horizontal">
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<Ellipse Width="10" Height="10" Margin="0 0 10 0" Fill="LightGreen"/>
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<TextBlock Text="Level 2.2 (Green)" Foreground="Green"/>
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</StackPanel>
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</TreeViewItem.Header>
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<TreeViewItem>
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<TreeViewItem.Header>
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<TextBlock Text="Level 3.1" Foreground="Red"/>
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</TreeViewItem.Header>
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</TreeViewItem>
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<TreeViewItem>
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<TreeViewItem.Header>
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<TextBlock Text="Level 3.2" Foreground="Red"/>
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</TreeViewItem.Header>
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</TreeViewItem>
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</TreeViewItem>
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</TreeViewItem>
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</TreeView>
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<TreeView x:Name="trvStructure" Grid.Row="2" Margin="10" %
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TreeViewItem.Expanded="trvStructure_Expanded"/>
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</Grid>
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</Window>
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