wpf datagrid 合并单元格

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

namespace MergeCellDataGrid
{
    /// 

    /// App.xaml 的交互逻辑
    /// 

    public partial class App : Application
    {
    }
}

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

    ..A..H.     25600  2018-02-06 11:29  MergeCellDataGrid\.vs\MergeCellDataGrid\v14\.suo

     文件        189  2018-02-06 11:29  MergeCellDataGrid\MergeCellDataGrid\App.config

     文件        388  2018-02-06 11:29  MergeCellDataGrid\MergeCellDataGrid\App.xaml

     文件        344  2018-02-06 11:29  MergeCellDataGrid\MergeCellDataGrid\App.xaml.cs

     文件      12800  2018-02-06 14:51  MergeCellDataGrid\MergeCellDataGrid\bin\Debug\MergeCellDataGrid.exe

     文件        189  2018-02-06 11:29  MergeCellDataGrid\MergeCellDataGrid\bin\Debug\MergeCellDataGrid.exe.config

     文件      26112  2018-02-06 14:51  MergeCellDataGrid\MergeCellDataGrid\bin\Debug\MergeCellDataGrid.pdb

     文件      22696  2018-02-06 14:51  MergeCellDataGrid\MergeCellDataGrid\bin\Debug\MergeCellDataGrid.vshost.exe

     文件        189  2018-02-06 11:29  MergeCellDataGrid\MergeCellDataGrid\bin\Debug\MergeCellDataGrid.vshost.exe.config

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

     文件       5326  2018-02-06 14:51  MergeCellDataGrid\MergeCellDataGrid\MainWindow.xaml

     文件       1800  2018-02-06 14:33  MergeCellDataGrid\MergeCellDataGrid\MainWindow.xaml.cs

     文件       4550  2018-02-06 11:29  MergeCellDataGrid\MergeCellDataGrid\MergeCellDataGrid.csproj

     文件       2357  2018-02-06 11:45  MergeCellDataGrid\MergeCellDataGrid\obj\Debug\App.g.cs

     文件       2357  2018-02-06 11:45  MergeCellDataGrid\MergeCellDataGrid\obj\Debug\App.g.i.cs

     文件       7307  2018-02-06 14:51  MergeCellDataGrid\MergeCellDataGrid\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache

     文件       3145  2018-02-06 14:51  MergeCellDataGrid\MergeCellDataGrid\obj\Debug\MainWindow.baml

     文件       3544  2018-02-06 14:51  MergeCellDataGrid\MergeCellDataGrid\obj\Debug\MainWindow.g.cs

     文件       3544  2018-02-06 14:51  MergeCellDataGrid\MergeCellDataGrid\obj\Debug\MainWindow.g.i.cs

     文件       1297  2018-02-06 14:51  MergeCellDataGrid\MergeCellDataGrid\obj\Debug\MergeCellDataGrid.csproj.FileListAbsolute.txt

     文件        954  2018-02-06 11:45  MergeCellDataGrid\MergeCellDataGrid\obj\Debug\MergeCellDataGrid.csproj.GenerateResource.Cache

     文件       2529  2018-02-06 11:45  MergeCellDataGrid\MergeCellDataGrid\obj\Debug\MergeCellDataGrid.csprojResolveAssemblyReference.cache

     文件      12800  2018-02-06 14:51  MergeCellDataGrid\MergeCellDataGrid\obj\Debug\MergeCellDataGrid.exe

     文件       3373  2018-02-06 14:51  MergeCellDataGrid\MergeCellDataGrid\obj\Debug\MergeCellDataGrid.g.resources

     文件      26112  2018-02-06 14:51  MergeCellDataGrid\MergeCellDataGrid\obj\Debug\MergeCellDataGrid.pdb

     文件        180  2018-02-06 11:45  MergeCellDataGrid\MergeCellDataGrid\obj\Debug\MergeCellDataGrid.Properties.Resources.resources

     文件        285  2018-02-06 14:51  MergeCellDataGrid\MergeCellDataGrid\obj\Debug\MergeCellDataGrid_MarkupCompile.cache

     文件        283  2018-02-06 14:51  MergeCellDataGrid\MergeCellDataGrid\obj\Debug\MergeCellDataGrid_MarkupCompile.i.cache

     文件         81  2018-02-06 14:51  MergeCellDataGrid\MergeCellDataGrid\obj\Debug\MergeCellDataGrid_MarkupCompile.lref

     文件          0  2018-02-06 11:29  MergeCellDataGrid\MergeCellDataGrid\obj\Debug\TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.cs

............此处省略22个文件信息