wpf 右下角弹出窗

<Window x:Class="V2VReporter.Views.SystemViews.MsgPopup"
        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:V2VReporter.Views.SystemViews"
        xmlns:controls="clr-namespace:V2VReporter.Controls"
        mc:Ignorable="d"
        Title="系统消息" Height="230" Width="300" AllowsTransparency="True" WindowStyle="None" ShowInTaskbar="False">
    <Border BorderBrush="{StaticResource SideLevel1}" BorderThickness="1">
        <Grid>
            <Grid.RowDefinitions>
                <RowDefinition Height="30"></RowDefinition>
                <RowDefinition Height="*"></RowDefinition>
                <RowDefinition Height="Auto"></RowDefinition>
            </Grid.RowDefinitions>
            <Grid Grid.Row="0" Background="{StaticResource MainGreen}">
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="*"></ColumnDefinition>
                    <ColumnDefinition Width="*"></ColumnDefinition>
                </Grid.ColumnDefinitions>
                <StackPanel Grid.Column="0" Orientation="Horizontal">
                    <TextBlock Text="&#xeb66;" Style="{StaticResource IconFont}" VerticalAlignment="Center" FontSize="18" Foreground="AliceBlue" Margin="5,0,0,0"></TextBlock>
                    <TextBlock Text="系统消息" Foreground="AliceBlue" FontSize="15" VerticalAlignment="Center" Margin="2,0,0,0" ></TextBlock>
                </StackPanel>
                <StackPanel Grid.Column="1" HorizontalAlignment="Right">
                    <controls:IconButton Style="{StaticResource TitleCloseBtn}" Margin="0,5,2,0" Click="ButtonBase_OnClick"></controls:IconButton>
                </StackPanel>
            </Grid>
        </Grid>
    </Border>
</Window>

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using V2VReporter.Resource;

namespace V2VReporter.Views.SystemViews
{
    /// <summary>
    /// MsgPopup.xaml 的交互逻辑
    /// </summary>
    public partial class MsgPopup:Window
    {
        /// <summary>
        /// 关闭动画
        /// </summary>
        private Storyboard sb_close=new Storyboard();
        /// <summary>
        /// 关闭标识
        /// </summary>
        private bool close_flg = false;
        /// <summary>
        /// 关闭动画
        /// </summary>
        private DoubleAnimation close=new DoubleAnimation();
        /// <summary>
        /// 窗口弹出
        /// </summary>
        private Storyboard sb_loaded=new Storyboard();
        /// <summary>
        /// 窗口弹出动画
        /// </summary>
        private DoubleAnimation load=new DoubleAnimation();
        /// <summary>
        /// 窗口加载动画
        /// </summary>
        private DoubleAnimation loadOp=new DoubleAnimation();


        public MsgPopup(Window win)
        {
            InitializeComponent();

            initedCloseStory();
            initedLoadStory(win);
            sb_loaded.Begin();
        }

        private void initedLoadStory(Window win)
        {
            this.Owner = win;
            this.Left = win.Width - this.Width;
            load.From = win.Height;
            load.To = win.Height - this.Height;
            load.Duration = new Duration(TimeSpan.FromSeconds(1.5));
            load.FillBehavior = FillBehavior.HoldEnd;
            load.AutoReverse = false;
            sb_loaded.Children.Add(load);
            Storyboard.SetTarget(load, this);
            Storyboard.SetTargetProperty(load, new PropertyPath("Top"));

            loadOp.From = 0;
            loadOp.To = 1;
            loadOp.Duration=new Duration(TimeSpan.FromSeconds(1.5));
            loadOp.FillBehavior = FillBehavior.HoldEnd;
            loadOp.AutoReverse = false;
            sb_loaded.Children.Add(loadOp);
            Storyboard.SetTarget(loadOp, this);
            Storyboard.SetTargetProperty(loadOp, new PropertyPath("Opacity"));

        }

        private void initedCloseStory()
        {
            close.From = 1;
            close.To = 0;
            close.Duration = new Duration(TimeSpan.FromSeconds(1));
            close.FillBehavior = FillBehavior.HoldEnd;
            close.AutoReverse = false;
            sb_close.Children.Add(close);
            Storyboard.SetTarget(close, this);
            Storyboard.SetTargetProperty(close, new PropertyPath("Opacity"));
        }

        protected override void OnClosing(CancelEventArgs e)
        {
            base.OnClosing(e);
            if (!close_flg)
            {
                sb_close.Completed += delegate
                {
                    close_flg = true;
                    this.Close();
                };
                sb_close.Begin();
                e.Cancel = true;
            }
            else
            {
                e.Cancel = false;
            }
        }

        private void ButtonBase_OnClick(object sender, RoutedEventArgs e)
        {
            this.Close();
        }
    }
}