wpf 窗口添加阴影并实现自定义窗口

当WindowStyle=None时整个 窗口的样式都没有了包括最大化最新化都没有了。直接上代码吧。。。。

xaml ：

<Window x:Class="WindowsNone.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:WindowsNone"

Style="{StaticResource for_noresize_window}"

WindowStyle="None"

mc:Ignorable="d"

Title="MainWindow" Height="450" Width="800">

<Grid>

<Grid.RowDefinitions>

<RowDefinition Height="50"></RowDefinition>

<RowDefinition Height="*"></RowDefinition>

</Grid.RowDefinitions>

<StackPanel Height="50"

Grid.Row="0"

MouseMove="TitleBar_MouseMove"

MouseDown="TitleBar_MouseDown"

Background="#336681"

VerticalAlignment="Center">

<Grid >

<Grid.ColumnDefinitions>

<ColumnDefinition Width="*"></ColumnDefinition>