When the installation of the package is finished, open the .csproj file and you'll find that an item package has been added. Next, you need to add a reference to “System.Linq;” Namespace for the .cs file.
Now try to run the following code: using. System; using.System.Linq; namespace CSharpSampleProjects { Class Program { Static void Mai(string [] args) { Int[] arr={1,2,3}; Var query = arr.Select()n => n*10; For each(var item in query) { Console,writeLine(item); } } } } Output Looking for an eminent .NET development company ? Your search ends here! Connect us How to use LinQ with ASP.NET? Objects are responsible for connecting to data access components - called the Data Access Layer (DAL). Here we must consider three points: Not all data required in an application is stored in a single source. The source can be a relational database, some business object, an XML file, or a web service. The data accessed is not directly used but needs to be sorted, ordered, grouped, replaced, etc. Accessing an in-memory object is easier and less expensive than accessing data from a database or XML file. LINQ will be fully integrated with the next release of Visual Studio (code-name: Orcas) and will include some very cool framework and tool support (including full IntelliSense and designer support). The LINQ team published the CTP drop of LINQ recently, which works well with Visual Studio 2005 and enables you to start learning about it right away. Upcoming improvements to LINQ in .NET Core 6 “Ordefault” value for default methods
The Enumerable.FirstOrDefault to a method returns a sequence's first element, or a default value if there are no items in the sequence. You can also override the default value for the SingleOrDefault and LastOrDefault methods. List list1 = new() { 1, 2, 3 }; int item1 = list1.FirstOrDefault(i => i == 4, -1); Console.WriteLine(item1); // -1 List list2 = new() { "Item1" }; string item2 = list2.SingleOrDefault(i => i == "Item2", "Not found"); Console.WriteLine(item2); // Not found Read More: Cutting-edge Technologies for Custom Software Development in 2022 A new Chunk method With the launch of the new Enumerable.chunk extension method in .NET Core 6, you are no longer required to implement the requirement to divide elements of the sequence into chunks. IEnumerable numbers = Enumerable.Range(1, 505); IEnumerable chunks = numbers.Chunk(100); foreach (int[] chunk in chunks) { Console.WriteLine($"{chunk.First()}...{chunk.Last()}"); } // Output: // 1...100 // 101...200 // 201...300 // 301...400 // 401...500 // 501...505 New *By methods Another crucial feature that gets added in .NET Core 6 is the new Enumerable.By* methods. It makes use of a 'key selector' and compares elements for further process. Take a look at the new methods listed below. MaxBy MinBy DistinctBy IntersectBy ExceptBy UnionBy List products = new() { new() { Name = "Product1", Price = 100 }, new() { Name = "Product2", Price = 5 }, new() { Name = "Product3", Price = 50 }, }; Product theCheapestProduct = products.MinBy(x => x.Price); Product theMostExpensiveProduct = products.MaxBy(x => x.Price); Console.WriteLine(theCheapestProduct); // Output: Product { Name = Product2, Price = 5 } Console.WriteLine(theMostExpensiveProduct); // Output: Product { Name = Product1, Price = 100 } record Product { public string Name { get; set; } public decimal Price { get; set; } } Searching for the best custom software development company ? Contact us Three-way Zip method The three-way zip method (Enumerable.Zip extension method) produces the tuple with the element from the two given sequences. Now, with .NET 6 developers can combine tuples from three sequences and send them to the extension method. int[] numbers = { 1, 2, 3, 4, }; string[] months = { "Jan", "Feb", "Mar" }; string[] seasons = { "Winter", "Winter", "Spring" }; var test = numbers.Zip(months).Zip(seasons); foreach ((int, string, string) zipped in numbers.Zip(months, seasons)) { Console.WriteLine($"{zipped.Item1} {zipped.Item2} {zipped.Item3}"); } // Output: // 1 Jan Winter // 2 Feb Winter // 3 Mar Spring Index support in the ElementAt the method The new unary to the prefix "hat" operator () is supported by the C# compiler thanks to the introduction of the Index struct in .NET Core 3.0. Now, in .NET 6, Enumerable.ElementAt method would be used to index “from the end” of the collection. IEnumerable numbers = new int[] { 1, 2, 3, 4, 5 }; int last = numbers.ElementAt(^0); Console.WriteLine(last); // 5IEnumerable numbers = new int[] { 1, 2, 3, 4, 5 }; int last = numbers.ElementAt(^0); Console.WriteLine(last); // 5 The Range support in the “Take method” In .NET Core 3.0, Range support for the struct was added. The function is used by the C# compiler to support the range operator "..". To support the range, .NET 6 makes use of a “Range struct” while code implementation. IEnumerable numbers = new int[] { 1, 2, 3, 4, 5 }; IEnumerable taken1 = numbers.Take(2..4); foreach (int I in taken1) Console.WriteLine(i); // Output: // 3 // 4 IEnumerable taken2 = numbers.Take(..3); foreach (int i in taken2) Console.WriteLine(i); // Output: // 1 // 2 // 3 IEnumerable taken3 = numbers.Take(3..); foreach (int i in taken3) Console.WriteLine(i); // Output: // 4 // 5 Read More: What's New in .NET 7: A Quick Overview of Key Features and Updates The .NET 6 Avoiding Enumeration with TryGetNonEnumeratedCount The .NET 6 introduces a new Enumerable.TryGetNonEnumerated to the method. It tries to determine the number of elements in the sequence without forcing an enumeration. This method can be used with IQueryable while calling Enumerable.Count that you don't want to evaluate the entire query. IEnumerable numbers = GetNumbers(); TryGetNonEnumeratedCount(numbers); // Output: Could not get a count of numbers without enumerating the sequence IEnumerable enumeratedNumbers = numbers.ToList(); var test = enumeratedNumbers.ElementAt(-1); TryGetNonEnumeratedCount(enumeratedNumbers); // Output: Count: 5 void TryGetNonEnumeratedCount(IEnumerable numbers) { if (numbers.TryGetNonEnumeratedCount(out int count)) Console.WriteLine($"Count: {count}"); else Console.WriteLine("Could not get a count of numbers without enumerating the sequence"); } IEnumerable GetNumbers() { yield return 1; yield return 2; yield return 3; yield return 4; yield return 5; } Conclusion Every version of the .NET framework has included some incredible features and libraries. The same goes with .NET Core 6 as well. The continuous LINQ updates have greatly streamlined web development and enabled amazing potential. Not just that, but these .NET 6 community-driven features will assist developers in reducing code and enhancing code quality. In this blog, we discussed the anticipated improvements to LINQ in the .NET Core 6, and how will it simplify the software development process.
