The c# 3 layer structure, is suitable for beginners, detailed text.

Three
.....\Three
.....\.....\Bll
.....\.....\...\bin
.....\.....\...\...\Debug
.....\.....\...\...\.....\Bll.dll
.....\.....\...\...\.....\Bll.pdb
.....\.....\...\...\.....\Dal.dll
.....\.....\...\...\.....\Dal.pdb
.....\.....\...\...\.....\Models.dll
.....\.....\...\...\.....\Models.pdb
.....\.....\...\Bll.csproj
.....\.....\...\bllUser.cs
.....\.....\...\obj
.....\.....\...\...\Debug
.....\.....\...\...\.....\Bll.csproj.FileListAbsolute.txt
.....\.....\...\...\.....\Bll.dll
.....\.....\...\...\.....\Bll.pdb
.....\.....\...\...\.....\Refactor
.....\.....\...\...\.....\........\Bll.dll
.....\.....\...\...\.....\ResolveAssemblyReference.cache
.....\.....\...\...\.....\TempPE
.....\.....\...\Properties
.....\.....\...\..........\AssemblyInfo.cs
.....\.....\...\UserRole.cs
.....\.....\Dal
.....\.....\...\bin
.....\.....\...\...\Debug
.....\.....\...\...\.....\Dal.dll
.....\.....\...\...\.....\Dal.pdb
.....\.....\...\...\.....\Models.dll
.....\.....\...\...\.....\Models.pdb
.....\.....\...\Dal.csproj
.....\.....\...\dalUser.cs
.....\.....\...\DataProvider.cs
.....\.....\...\obj
.....\.....\...\...\Debug
.....\.....\...\...\.....\Dal.csproj.FileListAbsolute.txt
.....\.....\...\...\.....\Dal.dll
.....\.....\...\...\.....\Dal.pdb
.....\.....\...\...\.....\Refactor
.....\.....\...\...\.....\........\Dal.dll
.....\.....\...\...\.....\ResolveAssemblyReference.cache
.....\.....\...\...\.....\TempPE
.....\.....\...\Properties
.....\.....\...\..........\AssemblyInfo.cs
.....\.....\Models
.....\.....\......\bin
.....\.....\......\...\Debug
.....\.....\......\...\.....\Models.dll
.....\.....\......\...\.....\Models.pdb
.....\.....\......\Models.csproj
.....\.....\......\obj
.....\.....\......\...\Debug
.....\.....\......\...\.....\Models.csproj.FileListAbsolute.txt
.....\.....\......\...\.....\Models.dll
.....\.....\......\...\.....\Models.pdb
.....\.....\......\...\.....\Refactor
.....\.....\......\...\.....\........\Models.dll
.....\.....\......\...\.....\TempPE
.....\.....\......\Properties
.....\.....\......\..........\AssemblyInfo.cs
.....\.....\......\TUser.cs
.....\.....\Three.sln
.....\.....\Three.suo
.....\web
.....\...\App_Code
.....\...\........\Global.asax.cs
.....\...\App_Data
.....\...\........\T_user.mdb
.....\...\Bin
.....\...\...\Bll.dll
.....\...\...\Bll.pdb
.....\...\...\Dal.dll
.....\...\...\Dal.pdb
.....\...\...\Models.dll
.....\...\...\Models.pdb
.....\...\...\UChat.dll
.....\...\Default.aspx
.....\...\Default.aspx.cs
.....\...\Global.asax
.....\...\Register.aspx
.....\...\Register.aspx.cs
.....\...\web.config
.....\...\Welcome.aspx
.....\...\Welcome.aspx.cs

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