File list (Check if you may need any files):
stumanagerSystems
.................\xx91112.BAK
.................\YangYang
.................\........\AssemblyInfo.cs
.................\........\Backup
.................\........\......\BusinessRules
.................\........\......\YangYang
.................\........\......\YangYang.sln
.................\........\bin
.................\........\...\BusinessRules.dll
.................\........\...\BusinessRules.pdb
.................\........\...\YangYang.dll
.................\........\...\YangYang.pdb
.................\........\BusinessRules
.................\........\.............\AssemblyInfo.cs
.................\........\.............\bin
.................\........\.............\...\Debug
.................\........\.............\...\.....\BusinessRules.dll
.................\........\.............\...\.....\BusinessRules.pdb
.................\........\.............\BusinessRules.csproj
.................\........\.............\BusinessRules.csproj.user
.................\........\.............\BusinessRules.sln
.................\........\.............\BusinessRules.suo
.................\........\.............\ClassTable.cs
.................\........\.............\CourseTable.cs
.................\........\.............\DB.cs
.................\........\.............\IDataBaseClass.cs
.................\........\.............\LoginUserMessage.cs
.................\........\.............\obj
.................\........\.............\...\Debug
.................\........\.............\...\.....\BusinessRules.dll
.................\........\.............\...\.....\BusinessRules.pdb
.................\........\.............\...\.....\temp
.................\........\.............\...\.....\TempPE
.................\........\.............\ScoreTable.cs
.................\........\.............\StudentInfo.cs
.................\........\ClassEdit.aspx
.................\........\ClassEdit.aspx.cs
.................\........\ClassEdit.aspx.resx
.................\........\ClassManage
.................\........\...........\ClassAdd.aspx
.................\........\...........\ClassAdd.aspx.cs
.................\........\...........\ClassAdd.aspx.resx
.................\........\...........\ClassDelete.aspx
.................\........\...........\ClassDelete.aspx.cs
.................\........\...........\ClassDelete.aspx.resx
.................\........\...........\ClassEdit.aspx
.................\........\...........\ClassEdit.aspx.cs
.................\........\...........\ClassEdit.aspx.resx
.................\........\...........\ClassView1.aspx
.................\........\...........\ClassView1.aspx.cs
.................\........\...........\ClassView1.aspx.resx
.................\........\common
.................\........\......\MyPage.cs
.................\........\CourseManage
.................\........\............\CourseAdd.aspx
.................\........\............\CourseAdd.aspx.cs
.................\........\............\CourseAdd.aspx.resx
.................\........\............\CourseEdit.aspx
.................\........\............\CourseEdit.aspx.cs
.................\........\............\CourseEdit.aspx.resx
.................\........\............\CourseView.aspx
.................\........\............\CourseView.aspx.cs
.................\........\............\CourseView.aspx.resx
.................\........\Deafult.aspx
.................\........\Deafult.aspx.cs
.................\........\Deafult.aspx.resx
.................\........\Global.asax
.................\........\Global.asax.cs
.................\........\Global.asax.resx
.................\........\JJJJ
.................\........\JS
.................\........\..\HTMLPage1.htm
.................\........\..\images
.................\........\..\......\close.gif
.................\........\..\......\drop1.gif
.................\........\..\......\drop2.gif
.................\........\..\......\left1.gif
.................\........\..\......\left2.gif
.................\........\..\......\right1.gif
.................\........\..\......\right2.gif
.................\........\..\popcalendar.j