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[Prolifik]
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Lines changed: 218 additions & 1 deletion

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‎LearningCSharp.Cmd/LearningCSharp.Cmd.csproj‎

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<WarningLevel>4</WarningLevel>
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</PropertyGroup>
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<PropertyGroup>
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<StartupObject>LearningCSharp.Cmd.Series4.LINQ.Tester</StartupObject>
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<StartupObject>LearningCSharp.Cmd.Series4.LINQPlus.Tester1</StartupObject>
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</PropertyGroup>
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<ItemGroup>
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<Reference Include="System" />
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<Compile Include="Series3\Delegates\Tester.cs" />
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<Compile Include="Series3\ExtensionPlus\Excercise.cs" />
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<Compile Include="Series3\ExtensionPlus\Program.cs" />
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<Compile Include="Series4\LINQPlus\Tester.cs" />
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<Compile Include="Series4\LINQPlus\Tester1.cs" />
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<Compile Include="Series4\LINQ\Program.cs" />
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<Compile Include="Series4\LINQ\Tester.cs" />
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<Compile Include="Types\Tester.cs" />

‎LearningCSharp.Cmd/Series4/LINQPlus/Tester.cs‎

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using LearningCSharp.Topics.LINQ;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace LearningCSharp.Cmd.Series4.LINQPlus
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{
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public class Tester
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{
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public static void Main()
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{
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var keywords = CollectionManager.GetTechWords();
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var keyList = CollectionManager.KeyList;
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Dictionary<string, string> dictionary2 =
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new Dictionary<string, string>();
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dictionary2.Add("CLR", "Common Language Runtime(2)");
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var j = keywords.Union(dictionary2);
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foreach (var item in j)
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{
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Console.WriteLine($"{item.Key}: {item.Value}");
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}
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Console.WriteLine("===============================");
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keywords["CLR"] = "Common Language Runtime (2)";
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//if (!keywords.ContainsKey("CLR"))
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//{
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// keywords.Add("CLR", "Common Language Runtime");
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//}
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foreach (var item in keywords)
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{
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Console.WriteLine($"{item.Key}: {item.Value}");
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}
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Console.ReadLine();
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//IEnumerable<KeyValuePair<string, string>> a = keywords.Where(n => n.Value.Contains("a"))
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// .OrderBy(n => n.Value.Length)
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// .Select(n => n);
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var a = from k in keywords
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let nk = k.Value.Replace("a", "")
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where nk.Length > 9
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select k;
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}
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}
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}

‎LearningCSharp.Cmd/Series4/LINQPlus/Tester1.cs‎

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using LearningCSharp.Topics.Domains;
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using LearningCSharp.Topics.LINQ;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace LearningCSharp.Cmd.Series4.LINQPlus
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{
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public class Tester1
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{
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public static void Main()
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{
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List<Category> squad = new List<Category>()
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{
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new Category(){ Name = "Jersey" },
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new Category(){ Name = "Boot" },
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};
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var squadResult = squad.Last(s => s.Name.Contains("gaby"));
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Console.WriteLine(squadResult);
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var name1 = new List<dynamic> { new { Name = "Prolifik", Id = 1 } };
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var name2 = new List<dynamic> { new { Name = "Lexzy", Id = 2 } };
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var name1Name2 = from n1 in name1
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join n2 in name2
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on n1.Id equals n2.Id
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select new { FullName = $"{n1.Name} {n2.Name}" };
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foreach (var item in name1Name2)
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{
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Console.WriteLine(item.FullName);
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}
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Console.WriteLine("======================");
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List<string> names = new List<string>()
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{
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"Gaby",
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"Prolifik",
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"Lola"
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};
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names.ForEach(n => { Console.WriteLine(n); });
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var categories = names.Select(n => new { Name = n });
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Console.WriteLine(names.Skip(2).Last());
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var prodList = CollectionManager.GetProduct().GroupBy(p => p.Category);
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foreach (var groupKey in prodList)
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{
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Console.Write(groupKey.Key);
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Console.WriteLine("======================");
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foreach (var item in groupKey)
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{
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Console.WriteLine($"{item.Category}: {item.Name}");
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}
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}
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Console.Read();
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}
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}
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}

‎LearningCSharp.Topics/Domains/Category.cs‎

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namespace LearningCSharp.Topics.Domains
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{
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public class Category
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{
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public string Name { get; set; }
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}
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}

‎LearningCSharp.Topics/Domains/Product.cs‎

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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace LearningCSharp.Topics.Domains
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{
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public class Product
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{
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public int Id { get; set; }
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public string Name { get; set; }
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public string Category { get; set; }
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}
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}

‎LearningCSharp.Topics/LINQ/CollectionManager.cs‎

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using LearningCSharp.Topics.Domains;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace LearningCSharp.Topics.LINQ
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{
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public class CollectionManager
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{
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public static List<Product> GetProduct()
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{
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string[] categories = new string[]
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{
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"BEVERAGES",
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"DETERGENT",
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};
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List<Product> productList = new List<Product>();
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productList.Add(new Product()
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{
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Category = categories.First(),
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Id = 1,
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Name = "Milo"
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});
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productList.Add(new Product()
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{
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Category = categories.Last(),
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Id = 2,
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Name = "Good mama"
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});
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productList.Add(new Product()
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{
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Category = categories.First(),
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Id = 3,
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Name = "Milk shake"
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});
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return productList;
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}
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public static List<KeyValuePair<string, string>> KeyList { get; set; } = new List<KeyValuePair<string, string>>();
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public static Dictionary<string, string> GetTechWords()
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{
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Dictionary<string, string> dictionary =
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new Dictionary<string, string>
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{
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{ "CLR", "Common Language Runtime" },
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{ "CTS", "Common Type System"},
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{ "CLI", "Common Language Infrstructure"}
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};
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KeyList = dictionary.ToList();
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KeyValuePair<string, string>[] v = dictionary.ToArray();
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return dictionary;
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}
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}
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}

‎LearningCSharp.Topics/LearningCSharp.Topics.csproj‎

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</ItemGroup>
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<ItemGroup>
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<Compile Include="Delegates\Shape.cs" />
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<Compile Include="Domains\Category.cs" />
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<Compile Include="Domains\Product.cs" />
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<Compile Include="Enumeration\People.cs" />
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<Compile Include="LINQ\CollectionManager.cs" />
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<Compile Include="Properties\AssemblyInfo.cs" />
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<Compile Include="TryException\MyCustomEx.cs" />
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</ItemGroup>

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