C# 数据库增删查改及DataGridView刷新数据

[{"title":"（ 42 个子文件 99KB ） C# 数据库增删查改及DataGridView刷新数据","children":[{"title":"C#数据库 单表 数据库 大家只要改Sql部分","children":[{"title":"给舒心的","children":[{"title":"Student.resx <span style='color:#111;'> 6.03KB </span>","children":null,"spread":false},{"title":"Student.cs <span style='color:#111;'> 6.91KB </span>","children":null,"spread":false},{"title":"Program.cs <span style='color:#111;'> 496B </span>","children":null,"spread":false},{"title":"Properties","children":[{"title":"Settings.settings <span style='color:#111;'> 249B </span>","children":null,"spread":false},{"title":"Resources.Designer.cs <span style='color:#111;'> 2.79KB </span>","children":null,"spread":false},{"title":"AssemblyInfo.cs <span style='color:#111;'> 1.32KB </span>","children":null,"spread":false},{"title":"Settings.Designer.cs <span style='color:#111;'> 1.08KB </span>","children":null,"spread":false},{"title":"Resources.resx <span style='color:#111;'> 5.48KB </span>","children":null,"spread":false}],"spread":true},{"title":"App.config <span style='color:#111;'> 265B </span>","children":null,"spread":false},{"title":"Student.Designer.cs <span style='color:#111;'> 10.40KB </span>","children":null,"spread":false},{"title":"obj","children":[{"title":"x86","children":[{"title":"Debug","children":[{"title":"wfStudy.StudentWindow.resources <span style='color:#111;'> 180B </span>","children":null,"spread":false},{"title":"给舒心的.pdb <span style='color:#111;'> 39.50KB </span>","children":null,"spread":false},{"title":"给舒心的.Properties.Resources.resources <span style='color:#111;'> 180B </span>","children":null,"spread":false},{"title":"GenerateResource.read.1.tlog <span style='color:#111;'> 426B </span>","children":null,"spread":false},{"title":"wfStudy.Properties.Resources.resources <span style='color:#111;'> 180B </span>","children":null,"spread":false},{"title":"ResolveAssemblyReference.cache <span style='color:#111;'> 8.41KB </span>","children":null,"spread":false},{"title":"WindowsFormStudy.csproj.FileListAbsolute.txt <span style='color:#111;'> 384B </span>","children":null,"spread":false},{"title":"wfStudy.pdb <span style='color:#111;'> 33.50KB </span>","children":null,"spread":false},{"title":"给舒心的.csproj.FileListAbsolute.txt <span style='color:#111;'> 2.24KB </span>","children":null,"spread":false},{"title":"TempPE","children":[{"title":"Properties.Resources.Designer.cs.dll <span style='color:#111;'> 4.50KB </span>","children":null,"spread":false}],"spread":false},{"title":"wfStudy.exe <span style='color:#111;'> 15.50KB </span>","children":null,"spread":false},{"title":"wfStudy.csproj.FileListAbsolute.txt <span style='color:#111;'> 1.29KB </span>","children":null,"spread":false},{"title":"给舒心的.exe <span style='color:#111;'> 15.50KB </span>","children":null,"spread":false},{"title":"DesignTimeResolveAssemblyReferencesInput.cache <span style='color:#111;'> 6.46KB </span>","children":null,"spread":false},{"title":"DesignTimeResolveAssemblyReferences.cache <span style='color:#111;'> 4.34KB </span>","children":null,"spread":false},{"title":"GenerateResource.write.1.tlog <span style='color:#111;'> 1.38KB </span>","children":null,"spread":false}],"spread":false}],"spread":true}],"spread":true},{"title":"SqlHelper.cs <span style='color:#111;'> 2.94KB </span>","children":null,"spread":false},{"title":"bin","children":[{"title":"Debug","children":[{"title":"给舒心的.pdb <span style='color:#111;'> 39.50KB </span>","children":null,"spread":false},{"title":"给舒心的.vshost.exe.manifest <span style='color:#111;'> 490B </span>","children":null,"spread":false},{"title":"wfStudy.pdb <span style='color:#111;'> 33.50KB </span>","children":null,"spread":false},{"title":"wfStudy.vshost.exe.config <span style='color:#111;'> 265B </span>","children":null,"spread":false},{"title":"给舒心的.vshost.exe.config <span style='color:#111;'> 265B </span>","children":null,"spread":false},{"title":"wfStudy.exe <span style='color:#111;'> 15.50KB </span>","children":null,"spread":false},{"title":"给舒心的.exe <span style='color:#111;'> 15.50KB </span>","children":null,"spread":false},{"title":"wfStudy.exe.config <span style='color:#111;'> 265B </span>","children":null,"spread":false},{"title":"给舒心的.exe.config <span style='color:#111;'> 265B </span>","children":null,"spread":false},{"title":"wfStudy.vshost.exe <span style='color:#111;'> 11.33KB </span>","children":null,"spread":false},{"title":"wfStudy.vshost.exe.manifest <span style='color:#111;'> 490B </span>","children":null,"spread":false}],"spread":false},{"title":"Release","children":null,"spread":false}],"spread":true},{"title":"wfStudy.csproj <span style='color:#111;'> 3.75KB </span>","children":null,"spread":false}],"spread":true},{"title":"数据库增删查改.sln <span style='color:#111;'> 868B </span>","children":null,"spread":false},{"title":"数据库增删查改.suo <span style='color:#111;'> 28.00KB </span>","children":null,"spread":false}],"spread":true},{"title":"Students.sql <span style='color:#111;'> 442B </span>","children":null,"spread":false}],"spread":true}]