ET9_WebGL_Dev/CSharp/GameEditor/MainWindow.xaml

<Window x:Class="GameEditor.MainWindow"
		xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
		xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
		Title="MainWindow" Height="800" Width="1280">
	<StackPanel>
		<Menu>
			<MenuItem Height="24">
			</MenuItem>
		</Menu>
		<Grid Height="738" Width="Auto">
			<Grid.ColumnDefinitions>
				<ColumnDefinition Width="150" />
				<ColumnDefinition Width="Auto" />
				<ColumnDefinition Width="Auto" />
                <ColumnDefinition Width="441*" />
            </Grid.ColumnDefinitions>
			<TreeView Grid.Column="0"  HorizontalAlignment="Stretch" Name="behaviorTreeView" 
					VerticalAlignment="Stretch" Padding="0" BorderThickness="0" 
					ContextMenuOpening="behaviorTreeView_ContextMenuOpening">
				<TreeView.ContextMenu>
					<ContextMenu>
						<MenuItem Name="newMenuItem"  Header="New" Click="newMenuItem_Click" />
                        <MenuItem Name="copyMenuItem" Header="Copy" Click="copyMenuItem_Click" />
                        <MenuItem Name="pasteMenuItem"  Header="Paste" Click="pasteMenuItem_Click" />
						<MenuItem Name="delMenuItem"  Header="Delete" Click="delMenuItem_Click" />
					</ContextMenu>
				</TreeView.ContextMenu>
			</TreeView>
			<GridSplitter Grid.Column="1" HorizontalAlignment="Center" VerticalAlignment="Stretch" Width="5" />
			<Canvas />
        </Grid>
	</StackPanel>
</Window>