多层表头DataGridView
....................\myDataGridViewTest2008
....................\......................\bin
....................\......................\...\Debug
....................\......................\...\.....\myDataGridViewTest2008.exe
....................\......................\...\.....\myDataGridViewTest2008.pdb
....................\......................\...\.....\myDataGridViewTest2008.vshost.exe
....................\......................\...\.....\myDataGridViewTest2008.vshost.exe.manifest
....................\......................\Form1.cs
....................\......................\Form1.Designer.cs
....................\......................\Form1.resx
....................\......................\HeaderCell.cs
....................\......................\myDataGridViewTest2008.csproj
....................\......................\myDataGridViewTest2008.sln
....................\......................\obj
....................\......................\...\Debug
....................\......................\...\.....\myDataGridViewTest2008.csproj.FileListAbsolute.txt
....................\......................\...\.....\myDataGridViewTest2008.csproj.GenerateResource.Cache
....................\......................\...\.....\myDataGridViewTest2008.exe
....................\......................\...\.....\myDataGridViewTest2008.Form1.resources
....................\......................\...\.....\myDataGridViewTest2008.pdb
....................\......................\...\.....\myDataGridViewTest2008.Properties.Resources.resources
....................\......................\...\.....\Refactor
....................\......................\...\.....\TempPE
....................\......................\Program.cs
....................\......................\Properties
....................\......................\..........\AssemblyInfo.cs
....................\......................\..........\Resources.Designer.cs
....................\......................\..........\Resources.resx
....................\......................\..........\Settings.Designer.cs
....................\......................\..........\Settings.settings
....................\myDataGridViewTest20082
....................\.......................\bin
....................\.......................\...\Debug
....................\.......................\...\.....\myDataGridViewTest20082.exe
....................\.......................\...\.....\myDataGridViewTest20082.pdb
....................\.......................\...\.....\myDataGridViewTest20082.vshost.exe
....................\.......................\DataGridViewEx.cs
....................\.......................\DataGridViewEx.Designer.cs
....................\.......................\Form1.cs
....................\.......................\Form1.Designer.cs
....................\.......................\Form1.resx
....................\.......................\MultiHead.cs
....................\.......................\myDataGridViewTest20082.csproj
....................\.......................\obj
....................\.......................\...\Debug
....................\.......................\...\.....\myDataGridViewTest20082.csproj.FileListAbsolute.txt
....................\.......................\...\.....\myDataGridViewTest20082.csproj.GenerateResource.Cache
....................\.......................\...\.....\myDataGridViewTest20082.exe
....................\.......................\...\.....\myDataGridViewTest20082.Form1.resources
....................\.......................\...\.....\myDataGridViewTest20082.pdb
....................\.......................\...\.....\myDataGridViewTest20082.Properties.Resources.resources
....................\.......................\...\.....\Refactor
....................\.......................\...\.....\TempPE
....................\.......................\Program.cs
....................\.......................\Properties
....................\.......................\..........\AssemblyInfo.cs
....................\.......................\..........\Resources.Designer.cs
.....