MainWindow.xaml

<Window x:Class="WpfApplication2.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:WpfApplication2"
        mc:Ignorable="d"
        Title="MainWindow" Height="423.194" Width="917.586">
    <Canvas x:Name="canvas1" Button.MouseDown="cnv_MouseLeftButtonDown" Focusable="True"
            Button.MouseUp="cnv_MouseLeftButtonUp" Grid.Row="1" KeyDown="canvas1_KeyDown">
        <Canvas.Background>
            <DrawingBrush TileMode="Tile" Viewport="-36,-15,5,5" 
                                     ViewportUnits="Absolute">
                <DrawingBrush.Drawing>
                    <GeometryDrawing>
                        <GeometryDrawing.Geometry>
                            <RectangleGeometry Rect="0,0,50,50"/>
                        </GeometryDrawing.Geometry>
                        <GeometryDrawing.Pen>
                            <Pen Brush="Black" Thickness="1"/>
                        </GeometryDrawing.Pen>
                    </GeometryDrawing>
                </DrawingBrush.Drawing>
            </DrawingBrush>
        </Canvas.Background>
        <Menu Height="25" VerticalAlignment="Top">
            <MenuItem Header="Линии" Width="106">
                <RadioButton GroupName="Lines" Content="ЦДА" x:Name="CDA_L" IsChecked="True"></RadioButton>
                <RadioButton GroupName="Lines" Content="Брезенхем" x:Name="Brezenhem_L" IsChecked="False"></RadioButton>
                <RadioButton GroupName="Lines" Content="Ву" x:Name="Vu_L" IsChecked="False"></RadioButton>
				</MenuItem>
            <CheckBox x:Name="Debug" Height="25" Width="124" VerticalAlignment="Stretch" BorderBrush="#FFDADADA" Content="Debug" IsChecked="False"
                      Click="Debug_Click">
            </CheckBox>
                    <Button x:Name="MoveBack" Height="25" Width="124" VerticalAlignment="Bottom" HorizontalAlignment="Left" Content="&lt;-" Visibility="Hidden" Click="MoveBack_Click"/>
            <Button x:Name="MoveForward" Height="25" Width="124" VerticalAlignment="Bottom" HorizontalAlignment="Left" Content="-&gt;" Visibility="Hidden" Click="MoveForward_Click"/>
        </Menu>
    </Canvas>
</Window>