WPF登录窗口淡入淡出效果

WPF登录窗口加载，界面内容淡入效果，取消后界面内容淡出。

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2018-01-10 14:35  WPF登录窗口淡入淡出\
     目录           0  2016-09-30 11:04  WPF登录窗口淡入淡出\WpfApplication1\
     文件         935  2016-07-20 14:04  WPF登录窗口淡入淡出\WpfApplication1.sln
     文件       49152  2018-01-10 14:35  WPF登录窗口淡入淡出\WpfApplication1.v11.suo
     文件         326  2016-07-20 14:04  WPF登录窗口淡入淡出\WpfApplication1\App.xaml
     文件         311  2016-07-20 14:04  WPF登录窗口淡入淡出\WpfApplication1\App.xaml.cs
     目录           0  2016-09-30 11:04  WPF登录窗口淡入淡出\WpfApplication1\bin\
     目录           0  2016-09-30 11:04  WPF登录窗口淡入淡出\WpfApplication1\bin\Debug\
     文件       12288  2018-01-10 14:33  WPF登录窗口淡入淡出\WpfApplication1\bin\Debug\WpfApplication1.exe
     文件       36352  2018-01-10 14:33  WPF登录窗口淡入淡出\WpfApplication1\bin\Debug\WpfApplication1.pdb
     文件       22472  2018-01-10 11:02  WPF登录窗口淡入淡出\WpfApplication1\bin\Debug\WpfApplication1.vshost.exe
     文件         490  2012-06-06 02:06  WPF登录窗口淡入淡出\WpfApplication1\bin\Debug\WpfApplication1.vshost.exe.manifest
     文件        3531  2018-01-10 14:34  WPF登录窗口淡入淡出\WpfApplication1\MainWindow.xaml
     文件        1057  2018-01-10 14:33  WPF登录窗口淡入淡出\WpfApplication1\MainWindow.xaml.cs
     目录           0  2016-09-30 11:04  WPF登录窗口淡入淡出\WpfApplication1\obj\
     目录           0  2018-01-10 14:33  WPF登录窗口淡入淡出\WpfApplication1\obj\Debug\
     文件        2325  2018-01-10 14:15  WPF登录窗口淡入淡出\WpfApplication1\obj\Debug\App.g.cs
     文件        2325  2018-01-10 14:15  WPF登录窗口淡入淡出\WpfApplication1\obj\Debug\App.g.i.cs
     文件        6928  2018-01-10 14:34  WPF登录窗口淡入淡出\WpfApplication1\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache
     文件        3453  2018-01-10 14:33  WPF登录窗口淡入淡出\WpfApplication1\obj\Debug\MainWindow.baml
     文件        4565  2018-01-10 14:33  WPF登录窗口淡入淡出\WpfApplication1\obj\Debug\MainWindow.g.cs
     文件        4565  2018-01-10 14:33  WPF登录窗口淡入淡出\WpfApplication1\obj\Debug\MainWindow.g.i.cs
     目录           0  2016-07-20 14:04  WPF登录窗口淡入淡出\WpfApplication1\obj\Debug\TempPE\
     文件        2246  2018-01-10 14:15  WPF登录窗口淡入淡出\WpfApplication1\obj\Debug\WpfApplication1.csproj.FileListAbsolute.txt
     文件         917  2016-07-20 14:31  WPF登录窗口淡入淡出\WpfApplication1\obj\Debug\WpfApplication1.csproj.GenerateResource.Cache
     文件        2352  2016-07-20 14:31  WPF登录窗口淡入淡出\WpfApplication1\obj\Debug\WpfApplication1.csprojResolveAssemblyReference.cache
     文件       12288  2018-01-10 14:33  WPF登录窗口淡入淡出\WpfApplication1\obj\Debug\WpfApplication1.exe
     文件        3681  2018-01-10 14:33  WPF登录窗口淡入淡出\WpfApplication1\obj\Debug\WpfApplication1.g.resources
     文件       36352  2018-01-10 14:33  WPF登录窗口淡入淡出\WpfApplication1\obj\Debug\WpfApplication1.pdb
     文件         180  2016-07-20 14:31  WPF登录窗口淡入淡出\WpfApplication1\obj\Debug\WpfApplication1.Properties.Resources.resources
     文件         272  2018-01-10 14:33  WPF登录窗口淡入淡出\WpfApplication1\obj\Debug\WpfApplication1_MarkupCompile.cache
............此处省略8个文件信息