basic winform operating in c#

winfrom增删改操作
.................\bill
.................\....\bill.csproj
.................\....\bin
.................\....\...\Debug
.................\....\...\.....\bill.dll
.................\....\...\.....\bill.pdb
.................\....\...\.....\sql.dll
.................\....\...\.....\sql.pdb
.................\....\obj
.................\....\...\Debug
.................\....\...\.....\bill.csproj.FileListAbsolute.txt
.................\....\...\.....\bill.dll
.................\....\...\.....\bill.pdb
.................\....\...\.....\Refactor
.................\....\...\.....\ResolveAssemblyReference.cache
.................\....\...\.....\TempPE
.................\....\Properties
.................\....\..........\AssemblyInfo.cs
.................\....\yuju.cs
.................\sql
.................\...\bin
.................\...\...\Debug
.................\...\...\.....\sql.dll
.................\...\...\.....\sql.pdb
.................\...\Class1.cs
.................\...\obj
.................\...\...\Debug
.................\...\...\.....\sql.csproj.FileListAbsolute.txt
.................\...\...\.....\sql.dll
.................\...\...\.....\sql.pdb
.................\...\...\.....\TempPE
.................\...\Properties
.................\...\..........\AssemblyInfo.cs
.................\...\sql.csproj
.................\WindowsFormsApplication1
.................\........................\app.config
.................\........................\bin
.................\........................\...\Debug
.................\........................\...\.....\bill.dll
.................\........................\...\.....\bill.pdb
.................\........................\...\.....\Database1.mdf
.................\........................\...\.....\Database1_log.ldf
.................\........................\...\.....\sql.dll
.................\........................\...\.....\sql.pdb
.................\........................\...\.....\WindowsFormsApplication1.exe
.................\........................\...\.....\WindowsFormsApplication1.exe.config
.................\........................\...\.....\WindowsFormsApplication1.pdb
.................\........................\...\.....\WindowsFormsApplication1.vshost.exe
.................\........................\...\.....\WindowsFormsApplication1.vshost.exe.config
.................\........................\...\.....\WindowsFormsApplication1.vshost.exe.manifest
.................\........................\Form1.cs
.................\........................\Form1.Designer.cs
.................\........................\Form1.resx
.................\........................\obj
.................\........................\...\Debug
.................\........................\...\.....\ResolveAssemblyReference.cache
.................\........................\...\.....\TempPE
.................\........................\...\.....\......\Database1DataSet.Designer.cs.dll
.................\........................\...\.....\WindowsFormsApplication1.csproj.FileListAbsolute.txt
.................\........................\...\.....\WindowsFormsApplication1.csproj.GenerateResource.Cache
.................\........................\...\.....\WindowsFormsApplication1.exe
.................\........................\...\.....\WindowsFormsApplication1.Form1.resources
.................\........................\...\.....\WindowsFormsApplication1.pdb
.................\........................\...\.....\WindowsFormsApplication1.Properties.Resources.resources
.................\........................\Program.cs
.................\........................\Properties
.................\........................\..........\AssemblyInfo.cs
.................\........................\..........\Resources.Designer.cs
.................\........................\..........\Resources.resx
.................\........................\..........\Settings.Designer.cs
.................\........................\..........\Settings.settings
.................\........................\WindowsFormsApplication1.csproj
.................\..........

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