恢复带有圆形边框的 xaml 窗口

如何解决恢复带有圆形边框的 xaml 窗口

我有下面列出的 xaml 窗口，它工作正常，除了最大化命令（最小化/恢复工作正常）。窗口将最大化但不会恢复到相同的大小和位置。我相信问题出在边框剪辑矩形几何图形中，我无法正确恢复。

感谢任何帮助。

    <Window x:Class="ASR.WPF.MainWindow"
          xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
          xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
          xmlns:local="clr-namespace:ASR.WPF"
          xmlns:controls="clr-namespace:ASR.WPF.Controls"
          xmlns:nav="clr-namespace:ASR.WPF.State.Navigators"
          Title="ASR"
          Height="450" 
          Width="900"
          WindowStartupLocation="CenterScreen"
          WindowStyle="None"
          ResizeMode="CanResizeWithgrip"
          AllowsTransparency="True"
          Background="Transparent" 
          MouseDown="Window_MouseDown" MouseUp="Window_MouseUp">

     <Border Name="windowBorder" 
                BorderThickness="0"
                BorderBrush="DarkBlue" 
                CornerRadius="20" 
                Background="WhiteSmoke" Loaded="windowBorder_Loaded">

          <Border.Clip>
                <RectangleGeometry x:Name="rect" 
                                         RadiusX="20"
                                         RadiusY="20"
                                         Rect="0,900,450">
                </RectangleGeometry>
          </Border.Clip>

          <Grid>
                <Grid.RowDeFinitions>
                     <RowDeFinition Height="auto" />
                     <RowDeFinition Height="30" />
                </Grid.RowDeFinitions>

                <TextBlock Grid.Row="0" Padding="10" FontSize="26" Foreground="White" 
                          Text="ASR App" Background="{StaticResource BrushPrimary2}"/>

                <Grid Grid.Row="1" Background="{StaticResource BrushPrimary1}">
                     <Grid.Resources>
                          <Style targettype="RadioButton" BasedOn="{StaticResource NavButton}" />
                     </Grid.Resources>

                     <Grid.ColumnDeFinitions>
                          <ColumnDeFinition Width="auto" />
                          <ColumnDeFinition Width="auto" />
                          <ColumnDeFinition Width="auto" />
                          <ColumnDeFinition Width="auto" />
                          <ColumnDeFinition Width="*" />
                          <ColumnDeFinition Width="28" />
                          <ColumnDeFinition Width="28" />
                          <ColumnDeFinition Width="28"  />
                     </Grid.ColumnDeFinitions>

                     <RadioButton Grid.Column="0" Content="Home" Command="{Binding UpdateCurrentviewmodelCommand}" CommandParameter="{x:Static nav:ViewType.Home}"/>
                     <RadioButton Grid.Column="1" Content="SubOrgs" Command="{Binding UpdateCurrentviewmodelCommand}" CommandParameter="{x:Static nav:ViewType.SubOrg}"/>
                     <RadioButton Grid.Column="2" Content="Systems" Command="{Binding UpdateCurrentviewmodelCommand}" CommandParameter="{x:Static nav:ViewType.System}"/>
                     <RadioButton Grid.Column="3" Content="SystemErrors" Command="{Binding UpdateCurrentviewmodelCommand}" CommandParameter="{x:Static nav:ViewType.SystemErrors}"/>


                     <Button x:Name="Minimize" Grid.Column="5" 
                          Height="28"
                          Width="28"
                          Click="Minimize_Click"
                          HorizontalAlignment="Right">
                          <Image Source="{StaticResource ImageMin}" Height="26" Width="26"></Image>
                     </Button>

                     <Button x:Name="Maximize" Grid.Column="6" 
                          Height="28"
                          Width="28"
                          Click="Maximize_Click"
                          HorizontalAlignment="Right">
                          <Image Source="{StaticResource ImageMax}" Height="26" Width="26"></Image>
                     </Button>
                     <Button x:Name="Close" Grid.Column="7" 
                          Height="28"
                          Width="28"
                          Click="Close_Click"
                          HorizontalAlignment="Right">
                          <Image Source="{StaticResource ImageClose}" Height="26" Width="26"></Image>
                     </Button>

                </Grid>

          </Grid>
     </Border>

</Window>