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Chapter 22: Introduction and Applying LINQ
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Chapter22/BeginningCSharp7_22_10_GroupQuery/BeginningCSharp7_22_10_GroupQuery.sln
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
|
|
||
| Microsoft Visual Studio Solution File, Format Version 12.00 | ||
| # Visual Studio 15 | ||
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| MinimumVisualStudioVersion = 10.0.40219.1 | ||
| Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BeginningCSharp7_22_10_GroupQuery", "BeginningCSharp7_22_10_GroupQuery\BeginningCSharp7_22_10_GroupQuery.csproj", "{67AEA3AE-9761-466C-B916-A0CECCBF652A}" | ||
| EndProject | ||
| Global | ||
| GlobalSection(SolutionConfigurationPlatforms) = preSolution | ||
| Debug|Any CPU = Debug|Any CPU | ||
| Release|Any CPU = Release|Any CPU | ||
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| GlobalSection(ProjectConfigurationPlatforms) = postSolution | ||
| {67AEA3AE-9761-466C-B916-A0CECCBF652A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU | ||
| {67AEA3AE-9761-466C-B916-A0CECCBF652A}.Debug|Any CPU.Build.0 = Debug|Any CPU | ||
| {67AEA3AE-9761-466C-B916-A0CECCBF652A}.Release|Any CPU.ActiveCfg = Release|Any CPU | ||
| {67AEA3AE-9761-466C-B916-A0CECCBF652A}.Release|Any CPU.Build.0 = Release|Any CPU | ||
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| EndGlobalSection | ||
| EndGlobal |
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Chapter22/BeginningCSharp7_22_10_GroupQuery/BeginningCSharp7_22_10_GroupQuery/App.config
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| <?xml version="1.0" encoding="utf-8"?> | ||
| <configuration> | ||
| <startup> | ||
| <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.1"/> | ||
| </startup> | ||
| </configuration> |
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..._10_GroupQuery/BeginningCSharp7_22_10_GroupQuery/BeginningCSharp7_22_10_GroupQuery.csproj
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| <?xml version="1.0" encoding="utf-8"?> | ||
| <Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> | ||
| <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" /> | ||
| <PropertyGroup> | ||
| <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration> | ||
| <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform> | ||
| <ProjectGuid>{67AEA3AE-9761-466C-B916-A0CECCBF652A}</ProjectGuid> | ||
| <OutputType>Exe</OutputType> | ||
| <RootNamespace>BeginningCSharp7_22_10_GroupQuery</RootNamespace> | ||
| <AssemblyName>BeginningCSharp7_22_10_GroupQuery</AssemblyName> | ||
| <TargetFrameworkVersion>v4.7.1</TargetFrameworkVersion> | ||
| <FileAlignment>512</FileAlignment> | ||
| <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects> | ||
| <TargetFrameworkProfile /> | ||
| </PropertyGroup> | ||
| <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' "> | ||
| <PlatformTarget>AnyCPU</PlatformTarget> | ||
| <DebugSymbols>true</DebugSymbols> | ||
| <DebugType>full</DebugType> | ||
| <Optimize>false</Optimize> | ||
| <OutputPath>bin\Debug\</OutputPath> | ||
| <DefineConstants>DEBUG;TRACE</DefineConstants> | ||
| <ErrorReport>prompt</ErrorReport> | ||
| <WarningLevel>4</WarningLevel> | ||
| </PropertyGroup> | ||
| <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' "> | ||
| <PlatformTarget>AnyCPU</PlatformTarget> | ||
| <DebugType>pdbonly</DebugType> | ||
| <Optimize>true</Optimize> | ||
| <OutputPath>bin\Release\</OutputPath> | ||
| <DefineConstants>TRACE</DefineConstants> | ||
| <ErrorReport>prompt</ErrorReport> | ||
| <WarningLevel>4</WarningLevel> | ||
| </PropertyGroup> | ||
| <ItemGroup> | ||
| <Reference Include="System" /> | ||
| <Reference Include="System.Core" /> | ||
| <Reference Include="System.Xml.Linq" /> | ||
| <Reference Include="System.Data.DataSetExtensions" /> | ||
| <Reference Include="Microsoft.CSharp" /> | ||
| <Reference Include="System.Data" /> | ||
| <Reference Include="System.Net.Http" /> | ||
| <Reference Include="System.Xml" /> | ||
| </ItemGroup> | ||
| <ItemGroup> | ||
| <Compile Include="Program.cs" /> | ||
| <Compile Include="Properties\AssemblyInfo.cs" /> | ||
| </ItemGroup> | ||
| <ItemGroup> | ||
| <None Include="App.config" /> | ||
| </ItemGroup> | ||
| <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" /> | ||
| </Project> |
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Chapter22/BeginningCSharp7_22_10_GroupQuery/BeginningCSharp7_22_10_GroupQuery/Program.cs
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| using System; | ||
| using System.Collections.Generic; | ||
| using System.Linq; | ||
| using System.Text; | ||
| using System.Threading.Tasks; | ||
| using static System.Console; | ||
|
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| namespace BeginningCSharp7_22_10_GroupQuery | ||
| { | ||
| class Customer | ||
| { | ||
| public string ID { get; set; } | ||
| public string City { get; set; } | ||
| public string Country { get; set; } | ||
| public string Region { get; set; } | ||
| public decimal Sales { get; set; } | ||
|
|
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| } | ||
| class Program | ||
| { | ||
| static void Main(string[] args) | ||
| { | ||
| List<Customer> customers = new List<Customer> { | ||
| new Customer { ID="A", City="New York", Country="USA", Region="North America", Sales=9999}, | ||
| new Customer { ID="B", City="Mumbai", Country="India", Region="Asia", Sales=8888}, | ||
| new Customer { ID="C", City="Karachi", Country="Pakistan", Region="Asia", Sales=7777}, | ||
| new Customer { ID="D", City="Delhi", Country="India", Region="Asia", Sales=6666}, | ||
| new Customer { ID="E", City="São Paulo", Country="Brazil", Region="South America", Sales=5555 }, | ||
| new Customer { ID="F", City="Moscow", Country="Russia", Region="Europe", Sales=4444 }, | ||
| new Customer { ID="G", City="Seoul", Country="Korea", Region="Asia", Sales=3333 }, | ||
| new Customer { ID="H", City="Istanbul", Country="Turkey", Region="Asia", Sales=2222 }, | ||
| new Customer { ID="I", City="Shanghai", Country="China", Region="Asia", Sales=1111 }, | ||
| new Customer { ID="J", City="Lagos", Country="Nigeria", Region="Africa", Sales=1000 }, | ||
| new Customer { ID="K", City="Mexico City", Country="Mexico", Region="North America", Sales=2000 }, | ||
| new Customer { ID="L", City="Jakarta", Country="Indonesia", Region="Asia", Sales=3000 }, | ||
| new Customer { ID="M", City="Tokyo", Country="Japan", Region="Asia", Sales=4000 }, | ||
| new Customer { ID="N", City="Los Angeles", Country="USA", Region="North America", Sales=5000 }, | ||
| new Customer { ID="O", City="Cairo", Country="Egypt", Region="Africa", Sales=6000 }, | ||
| new Customer { ID="P", City="Tehran", Country="Iran", Region="Asia", Sales=7000 }, | ||
| new Customer { ID="Q", City="London", Country="UK", Region="Europe", Sales=8000 }, | ||
| new Customer { ID="R", City="Beijing", Country="China", Region="Asia", Sales=9000 }, | ||
| new Customer { ID="S", City="Bogotá", Country="Colombia", Region="South America", Sales=1001 }, | ||
| new Customer { ID="T", City="Lima", Country="Peru", Region="South America", Sales=2002 } | ||
| }; | ||
|
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| var queryResults = | ||
| from c in customers | ||
| group c by c.Region into cg | ||
| select new { TotalSales = cg.Sum(c => c.Sales), Region = cg.Key } | ||
| ; | ||
|
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| var orderedResults = | ||
| from cg in queryResults | ||
| orderby cg.TotalSales descending | ||
| select cg | ||
| ; | ||
|
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|
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| WriteLine("Total\t: By\nSales\t: Region\n-----\t ------"); | ||
| foreach (var item in orderedResults) | ||
| { | ||
| WriteLine($"{item.TotalSales}\t: {item.Region}"); | ||
| } | ||
| Write("Program finished, press Enter/Return to continue:"); | ||
| ReadLine(); | ||
| } | ||
| } | ||
| } |
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...ningCSharp7_22_10_GroupQuery/BeginningCSharp7_22_10_GroupQuery/Properties/AssemblyInfo.cs
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|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| using System.Reflection; | ||
| using System.Runtime.CompilerServices; | ||
| using System.Runtime.InteropServices; | ||
|
|
||
| // General Information about an assembly is controlled through the following | ||
| // set of attributes. Change these attribute values to modify the information | ||
| // associated with an assembly. | ||
| [assembly: AssemblyTitle("BeginningCSharp7_22_10_GroupQuery")] | ||
| [assembly: AssemblyDescription("")] | ||
| [assembly: AssemblyConfiguration("")] | ||
| [assembly: AssemblyCompany("")] | ||
| [assembly: AssemblyProduct("BeginningCSharp7_22_10_GroupQuery")] | ||
| [assembly: AssemblyCopyright("Copyright © 2017")] | ||
| [assembly: AssemblyTrademark("")] | ||
| [assembly: AssemblyCulture("")] | ||
|
|
||
| // Setting ComVisible to false makes the types in this assembly not visible | ||
| // to COM components. If you need to access a type in this assembly from | ||
| // COM, set the ComVisible attribute to true on that type. | ||
| [assembly: ComVisible(false)] | ||
|
|
||
| // The following GUID is for the ID of the typelib if this project is exposed to COM | ||
| [assembly: Guid("67aea3ae-9761-466c-b916-a0ceccbf652a")] | ||
|
|
||
| // Version information for an assembly consists of the following four values: | ||
| // | ||
| // Major Version | ||
| // Minor Version | ||
| // Build Number | ||
| // Revision | ||
| // | ||
| // You can specify all the values or you can default the Build and Revision Numbers | ||
| // by using the '*' as shown below: | ||
| // [assembly: AssemblyVersion("1.0.*")] | ||
| [assembly: AssemblyVersion("1.0.0.0")] | ||
| [assembly: AssemblyFileVersion("1.0.0.0")] |
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Chapter22/BeginningCSharp7_22_11_JoinQuery/BeginningCSharp7_22_11_JoinQuery.sln
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
|
|
||
| Microsoft Visual Studio Solution File, Format Version 12.00 | ||
| # Visual Studio 15 | ||
| VisualStudioVersion = 15.0.26730.16 | ||
| MinimumVisualStudioVersion = 10.0.40219.1 | ||
| Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BeginningCSharp7_22_11_JoinQuery", "BeginningCSharp7_22_11_JoinQuery\BeginningCSharp7_22_11_JoinQuery.csproj", "{AF7D3D45-76A9-4440-A667-D665A2DF9F20}" | ||
| EndProject | ||
| Global | ||
| GlobalSection(SolutionConfigurationPlatforms) = preSolution | ||
| Debug|Any CPU = Debug|Any CPU | ||
| Release|Any CPU = Release|Any CPU | ||
| EndGlobalSection | ||
| GlobalSection(ProjectConfigurationPlatforms) = postSolution | ||
| {AF7D3D45-76A9-4440-A667-D665A2DF9F20}.Debug|Any CPU.ActiveCfg = Debug|Any CPU | ||
| {AF7D3D45-76A9-4440-A667-D665A2DF9F20}.Debug|Any CPU.Build.0 = Debug|Any CPU | ||
| {AF7D3D45-76A9-4440-A667-D665A2DF9F20}.Release|Any CPU.ActiveCfg = Release|Any CPU | ||
| {AF7D3D45-76A9-4440-A667-D665A2DF9F20}.Release|Any CPU.Build.0 = Release|Any CPU | ||
| EndGlobalSection | ||
| GlobalSection(SolutionProperties) = preSolution | ||
| HideSolutionNode = FALSE | ||
| EndGlobalSection | ||
| GlobalSection(ExtensibilityGlobals) = postSolution | ||
| SolutionGuid = {464082E1-9FEC-47A6-8F88-D2893AC41BFF} | ||
| EndGlobalSection | ||
| EndGlobal |
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Chapter22/BeginningCSharp7_22_11_JoinQuery/BeginningCSharp7_22_11_JoinQuery/App.config
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,6 @@ | ||
| <?xml version="1.0" encoding="utf-8"?> | ||
| <configuration> | ||
| <startup> | ||
| <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.1"/> | ||
| </startup> | ||
| </configuration> |
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