这是我的代码
<xctk:ChildWindow Name="loginchildwindow" WindowBorderBrush="Transparent" WindowBorderThickness="0" BorderBrush="Transparent" BorderThickness="0" WindowBackground="Transparent" Background="Transparent" OverlayBrush="{StaticResource LoginChildwindowBackgroundColor}" OverlayOpacity="50" CloseButtonVisibility="Collapsed"
WindowThickness="0" Caption="" WindowStartupLocation="Center" MinHeight="370" MinWidth="400" IsModal="True" />