Entity Framework Core 6 and C# 10 Features

C# 10 Features

.NET 6 introduces support for C# 10, which includes a number of new language features. Some of the most notable improvements include:

1. File-scoped namespaces

C# 10 allows for file-scoped namespaces, which means that namespaces can be declared at the top of a file, rather than being required to wrap every class. This can simplify code and make it easier to understand the relationship between different files.

// File1.cs
namespace MyNamespace; class MyClass1 { } // File2.cs namespace MyNamespace; class MyClass2 { }

2. Improved "interpolated" strings

C# 10 improves interpolated strings by allowing for more complex expressions inside the braces. This can make it easier to format strings and reduce the amount of code required.

int age = 30; string name = "Alice"; Console.WriteLine($"My name is {name}, and I am {age} years old. In 5 years, I will be {age + 5}.");

3. global keyword

C# 10 introduces a global keyword, which can be used to specify that a namespace should be searched globally, rather than in the current namespace or file. This can be useful when working with external libraries or namespaces.

global::System.Console.WriteLine("Hello, world!");

Entity Framework Core 6 Features

Entity Framework Core 6 introduces a number of new features and improvements that make it easier to work with databases and data models. Some of the most notable improvements include:

1. Global query filters

Entity Framework Core 6 introduces support for global query filters, which can be used to apply filters to all queries for a particular entity. This can be useful for filtering out deleted records, applying business rules, or any other scenario where certain records should be excluded from all queries by default.

modelBuilder.Entity<Person>().HasQueryFilter(p => !p.Deleted);

2. Batch updates and deletes

Entity Framework Core 6 introduces support for batch updates and deletes, which can improve performance when updating or deleting multiple records at once. This can be especially helpful when working with large datasets.

context.People.Where(p => p.LastName == "Smith").BatchDelete();

3. Improved translation of LINQ queries

Entity Framework Core 6 introduces improved translation of LINQ queries, which can improve performance and reduce the amount of data transferred between the database and the application. This is achieved through better translation of more complex queries, and improved support for querying JSON data.

context.People .Where(p => p.Address.ZipCode.StartsWith("10")) .Select(p => new { p.Name, p.Address }) .ToList();

Conclusion

.NET 6 and Entity Framework Core 6 introduce a number of new features and improvements that make developing applications easier and more efficient. By taking advantage of these features, developers can write cleaner, more concise code, and improve the performance of their applications.

 

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