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Entity Framework Core 3.0 was released on 23 September 2019 (5 years ago) () along with Visual Studio 2019 16.3 and ASP.NET Core 3.0, [19] Entity Framework Core 3.1 (EF Core 3.1) was formally released for production use on 3 December 2019 (5 years ago) () and will be the preferred long-term supported version until at least 3 December 2022. [20 ...
This is a feature of C# 9.0. Similar to in scripting languages, top-level statements removes the ceremony of having to declare the Program class with a Main method. Instead, statements can be written directly in one specific file, and that file will be the entry point of the program. Code in other files will still have to be defined in classes.
ASP.NET Core is an open-source modular web-application framework. It is a redesign of ASP.NET that unites the previously separate ASP.NET MVC and ASP.NET Web API into a single programming model . [ 3 ] [ 4 ] Despite being a new framework, built on a new web stack, it does have a high degree of concept compatibility with ASP.NET.
C# makes use of reification to provide "first-class" generic objects that can be used like any other class, with code generation performed at class-load time. [29] Furthermore, C# has added several major features to accommodate functional-style programming, culminating in the LINQ extensions released with C# 3.0 and its supporting framework of ...
[32] [33] [34] As the framework evolved, additional object–relational tools were added, such as the Entity Framework and LINQ to SQL, both introduced in .NET Framework 3.5. These tools reduced the significance and popularity of third-party object–relational libraries.
In April 2009, the ASP.NET MVC source code was released under the Microsoft Public License (MS-PL). [8] "ASP.NET MVC framework is a lightweight, [9] highly testable presentation framework that is integrated with existing ASP.NET features. Some of these integrated features are master pages and membership-based authentication.
For example, consider an address book entry that represents a single person along with zero or more phone numbers and zero or more addresses. This could be modeled in an object-oriented implementation by a "Person object " with an attribute/field to hold each data item that the entry comprises: the person's name, a list of phone numbers, and a ...
The factory method design pattern solves problems such as: How can an object's subclasses redefine its subsequent and distinct implementation? The pattern involves creation of a factory method within the superclass that defers the object's creation to a subclass's factory method.