wpf DataGrid分组、排序、筛选

针对 DataGrid 控件，对数据进行分组、排序和筛选....

using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Threading.Tasks;
using System.Windows;

namespace DataGridGroup
{
    /// 

    /// App.xaml 的交互逻辑
    /// 

    public partial class App : Application
    {
    }
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

    ..A..H.     55296  2018-02-02 16:01  DataGridGroup\.vs\DataGridGroup\v14\.suo

     文件        189  2018-02-02 14:22  DataGridGroup\DataGridGroup\App.config

     文件        380  2018-02-02 14:22  DataGridGroup\DataGridGroup\App.xaml

     文件        340  2018-02-02 14:23  DataGridGroup\DataGridGroup\App.xaml.cs

     文件      18432  2018-02-02 15:58  DataGridGroup\DataGridGroup\bin\Debug\DataGridGroup.exe

     文件        189  2018-02-02 14:22  DataGridGroup\DataGridGroup\bin\Debug\DataGridGroup.exe.config

     文件      36352  2018-02-02 15:58  DataGridGroup\DataGridGroup\bin\Debug\DataGridGroup.pdb

     文件      22696  2018-02-02 15:57  DataGridGroup\DataGridGroup\bin\Debug\DataGridGroup.vshost.exe

     文件        189  2018-02-02 14:22  DataGridGroup\DataGridGroup\bin\Debug\DataGridGroup.vshost.exe.config

     文件        490  2016-03-09 13:48  DataGridGroup\DataGridGroup\bin\Debug\DataGridGroup.vshost.exe.manifest

     文件       4542  2018-02-02 14:23  DataGridGroup\DataGridGroup\DataGridGroup.csproj

     文件       5083  2018-02-02 15:57  DataGridGroup\DataGridGroup\MainWindow.xaml

     文件       6297  2018-02-02 15:58  DataGridGroup\DataGridGroup\MainWindow.xaml.cs

     文件       2341  2018-02-02 15:08  DataGridGroup\DataGridGroup\obj\Debug\App.g.cs

     文件       2341  2018-02-02 15:08  DataGridGroup\DataGridGroup\obj\Debug\App.g.i.cs

     文件       1454  2018-02-02 15:57  DataGridGroup\DataGridGroup\obj\Debug\DataGridGroup.csproj.FileListAbsolute.txt

     文件        954  2018-02-02 15:08  DataGridGroup\DataGridGroup\obj\Debug\DataGridGroup.csproj.GenerateResource.Cache

     文件       2529  2018-02-02 15:08  DataGridGroup\DataGridGroup\obj\Debug\DataGridGroup.csprojResolveAssemblyReference.cache

     文件      18432  2018-02-02 15:58  DataGridGroup\DataGridGroup\obj\Debug\DataGridGroup.exe

     文件       3901  2018-02-02 15:58  DataGridGroup\DataGridGroup\obj\Debug\DataGridGroup.g.resources

     文件      36352  2018-02-02 15:58  DataGridGroup\DataGridGroup\obj\Debug\DataGridGroup.pdb

     文件        180  2018-02-02 15:08  DataGridGroup\DataGridGroup\obj\Debug\DataGridGroup.Properties.Resources.resources

     文件        291  2018-02-02 15:58  DataGridGroup\DataGridGroup\obj\Debug\DataGridGroup_MarkupCompile.cache

     文件        289  2018-02-02 15:55  DataGridGroup\DataGridGroup\obj\Debug\DataGridGroup_MarkupCompile.i.cache

     文件         88  2018-02-02 15:58  DataGridGroup\DataGridGroup\obj\Debug\DataGridGroup_MarkupCompile.lref

     文件       7335  2018-02-02 15:55  DataGridGroup\DataGridGroup\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache

     文件       3015  2018-02-02 15:58  DataGridGroup\DataGridGroup\obj\Debug\GeneratedInternalTypeHelper.g.cs

     文件       3015  2018-02-02 15:58  DataGridGroup\DataGridGroup\obj\Debug\GeneratedInternalTypeHelper.g.i.cs

     文件       3673  2018-02-02 15:58  DataGridGroup\DataGridGroup\obj\Debug\MainWindow.baml

     文件       5856  2018-02-02 15:58  DataGridGroup\DataGridGroup\obj\Debug\MainWindow.g.cs

............此处省略24个文件信息