double click event on window title bar in wpf

<Window
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xml:lang="en-US"
    xmlns:abc="clr-namespace:abc"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2006"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    xmlns:local="clr-namespace:abc"
    x:Class="abc.Window1"
    x:Name="Window"
    Title="Good People"
    MinHeight="100"
    MinWidth="200" AllowsTransparency="True" Background="Transparent" SizeChanged="Window_SizeChanged"
    Height="600" Width="900" WindowStyle="None" Loaded="Window_Loaded" PreviewMouseMove="ResetCursor"
    ResizeMode="NoResize" WindowStartupLocation="CenterScreen" Icon="/abc;component/aexe.ico" PreviewKeyDown="Window_PreviewKeyDown" MouseLeftButtonDown="Window_MouseDown">
    <Border Name="windowborder1" BorderBrush="{DynamicResource MyDarkBlueSolidBrush}" Background="{DynamicResource TitleBorderBrush}" BorderThickness="1.5" CornerRadius="5">
        <Border Name="windowborder" BorderBrush="{StaticResource TitleBorderBrush}" Background="{StaticResource TitleBorderBrush}" BorderThickness="2" CornerRadius="5" >
            <Grid x:Name="LayoutRoot">

                    <Rectangle Fill="{StaticResource TitleBorderBrush}" Stroke="{x:Null}" VerticalAlignment="Top" Height="2.5" x:Name="top" PreviewMouseDown="Resize" MouseMove="DisplayResizeCursor" Margin="2.5,0,2.5,0"/>
                    <Rectangle Fill="{StaticResource TitleBorderBrush}" Stroke="{x:Null}" x:Name="bottom" Height="2.5" VerticalAlignment="Bottom" PreviewMouseDown="Resize" MouseMove="DisplayResizeCursor" Margin="2.5,0,2.5,0"/>
                    <Rectangle Fill="{StaticResource TitleBorderBrush}" Stroke="{x:Null}" HorizontalAlignment="Left" Margin="0,2.5,0,2.5" Width="2.5" x:Name="left" PreviewMouseDown="Resize" MouseMove="DisplayResizeCursor"/>
                    <Rectangle Fill="{StaticResource TitleBorderBrush}" Stroke="{x:Null}" Margin="0,2.5,0,2.5" Width="2.5" HorizontalAlignment="Right" x:Name="right" PreviewMouseDown="Resize" MouseMove="DisplayResizeCursor" />
                    <Rectangle Fill="{StaticResource TitleBorderBrush}" Stroke="{x:Null}" HorizontalAlignment="Left" VerticalAlignment="Bottom" Width="2.5" Height="2.5" x:Name="bottomLeft" PreviewMouseDown="Resize" MouseMove="DisplayResizeCursor"/>
                    <Rectangle Fill="{StaticResource TitleBorderBrush}" Stroke="{x:Null}" VerticalAlignment="Bottom" Height="2.5" Width="2.5" HorizontalAlignment="Right" x:Name="bottomRight" PreviewMouseDown="Resize" MouseMove="DisplayResizeCursor"/>
                    <Rectangle Fill="{StaticResource TitleBorderBrush}" Stroke="{x:Null}" HorizontalAlignment="Right" Width="2.5" Height="2.5" VerticalAlignment="Top" x:Name="topRight" PreviewMouseDown="Resize" MouseMove="DisplayResizeCursor"/>
                    <Rectangle Fill="{StaticResource TitleBorderBrush}" Stroke="{x:Null}" HorizontalAlignment="Left" Width="2.5" VerticalAlignment="Top" Height="3" x:Name="topLeft" PreviewMouseLeftButtonDown="Resize"  MouseMove="DisplayResizeCursor"/>

                    <!-- Top PANEL -->

                    <DockPanel Name="Maindocpanal" Background="{DynamicResource TitleBorderBrush}" Margin="2.5,2.5,2.5,2.5">
                        <!-- TITLE BAR  -->
                        <Grid Height="auto" Name="gridTitle" Width="auto" DockPanel.Dock="Top" MouseLeftButtonDown="mouseLeftButtonDown" Margin="0,0,0,0">
                            <!-- TITLE BAR -->
                            <Grid Name="maxMinCloseGrid"  Height="auto" Background="{DynamicResource TitleBorderBrush}"
                                ClipToBounds="False" Margin="0,0,0,0" IsHitTestVisible="True">
                                <Grid.ColumnDefinitions>
                                    <ColumnDefinition  Width=".300*" />
                                    <ColumnDefinition Width=".700*" />
                                </Grid.ColumnDefinitions>

                                <Label Margin="105,5,0,1" Name="titleLabel" DockPanel.Dock="Top"
                                    Background="Transparent" ClipToBounds="False" Foreground="{DynamicResource MyDarkBlueSolidBrush}" FontFamily="Tahoma"
                                    Grid.Column="1" HorizontalAlignment="Left" Width="185" FontSize="14" FontStyle="Normal"
                                     >abc
                                </Label>
                                <Button  Name="closeButton" Margin="0,0,2,15" Click="closeButtonClick" Width="25"  Height="20"
                                TextBlock.FontWeight="Bold" Background="Transparent" BorderBrush="Transparent" Foreground="{DynamicResource MyDarkBlueSolidBrush}"
                                    HorizontalAlignment="Right" Grid.Column="1" BorderThickness="0" FontFamily="Webdings">
                                    r
                                    <!--<Image  Stretch="Fill" Source="/abc;component/graphics/close.png"></Image>-->
                                </Button>
                                <!--<Label Name="closeButton" Margin="0,0,2,15" MouseDown="closeButtonClick" Width="30"  Height="20" FontWeight="Bold" Foreground="{DynamicResource MyDarkBlueSolidBrush}" HorizontalAlignment="Right" Grid.Column="1" BorderThickness="0" FontSize="13">X
</Label>-->
                                <Button  Name="maximizeButton" Margin="0,0,26,15" Click="maximizeButtonClick" TextBlock.FontWeight="Bold"  Background="Transparent" BorderBrush="Transparent" Foreground="{DynamicResource MyDarkBlueSolidBrush}" Grid.Column="1" BorderThickness="0" Padding="0" Focusable="False" Width="25" Height="20" HorizontalAlignment="Right" VerticalAlignment="Center" Content="1" FontFamily="Webdings" FontWeight="Bold">
                                    <!--<Button.RenderTransform>
                                <RotateTransform Angle="271" CenterX="8" CenterY="17.5"></RotateTransform>
                            </Button.RenderTransform>-->
                                   <!--<Image  Stretch="UniformToFill" Source="/HID_okworkbench;component/graphics/max.jpg"></Image>-->
                               </Button>
                                <Button Name="minimizeButton" Margin="0,0,50,15" TextBlock.FontWeight="Bold" Foreground="{DynamicResource MyDarkBlueSolidBrush}"
                       Background="Transparent" BorderBrush="Transparent" BorderThickness="0"  Width="25" Height="20" FontWeight="Bold"
                               HorizontalAlignment="Right" Click="minimizeButtonClick" Grid.Column="1" FontSize="11" Focusable="False" Content="0" FontFamily="Webdings">
                                    <!--<Image Stretch="Fill" Source="graphics\maxi.jpg"></Image>-->

                                </Button>
                            </Grid>
                            <!-- TITLE BAR -->



                    </DockPanel>
                    <!-- Top PANEL -->

            </Grid>
        </Border>
    </Border>

</Window>