ASP.NET goes through a series of stages in the life cycle of each page. Page request. The user requests a page. ASP.NET decides whether to compile it or serve it from a cache. Page Start. The Request and Response objects are created. Page Initialization. All page controls are initialized, and any themes are applied. Page Load. ASP.NET uses the view state and control state properties to set the control properties. Default values are set in the controls. Postback event handling….

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A PostBack happens when a user takes some action (like submitting a form) that sends information from the page to the server for processing via POST method. In ASP.NET, “PostBack” refers to the process by which a form is submitted to the server for processing. When a user interacts with a web page, such as clicking a button or selecting an option in a dropdown list, a PostBack occurs. This triggers an HTTP POST request to the server, which processes…

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Request flow handles the request from the clients and passes it to the server. Request hits the controller coming from the client. Controller plays its role and decides which model to use in order to serve the request further, passing that model to view which then transforms the model and generates an appropriate response that is rendered to the client.

Microsoft is providing the full .NET server stack in open source which means it is a ‘free’ download. This includes ASP.NET, the .NET compiler, the .NET Core Runtime, Framework, and Libraries, enabling developers to build with .NET across Windows, Mac or Linux. When discussing ASP.NET being open-source in an interview context, you can provide the following explanation: ASP.NET is indeed open-source, which means that its source code is freely available for anyone to view, modify, and distribute under licenses that…

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Roslyn is the name of the compiler used by .NET Framework. In ASP.NET, the compiler used depends on the version of ASP.NET being used: ASP.NET Web Forms (Traditional ASP.NET): In this case, the C# or VB.NET code is typically compiled at runtime using the ASP.NET runtime compiler, which compiles the code into Intermediate Language (IL) and then further into native code by the Just-In-Time (JIT) compiler. ASP.NET Core: ASP.NET Core applications can use either the .NET Core CLR or the…

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The web.config file is crucial because it contains the configuration settings for the application. It keeps your entire configuration separate from your code so you can easily change settings without code changes. It also allows you to potentially encrypt the configuration settings for increased security. In ASP.NET, the web.config file is a configuration file that is used to store settings and configurations for a web application. It is an XML-based file that resides in the root directory of an ASP.NET…

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If one intends to build a server component that can be easily utilized by an array of clients then ASP.NET Web API is the way to go. If, however, the project is purely going to be used as a web application, then ASP.NET MVC is a more appropriate choice. The choice between ASP.NET MVC and ASP.NET Web API depends on the specific requirements and goals of your project: ASP.NET MVC (Model-View-Controller): Best suited for applications that require rich UI interactions…

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ASP.NET Web API is used purely for building backend web APIs which can be used by an array of clients, from the web to desktop to mobile. It forms the server component in the RESTful (Representational State Transfer) architecture. An ASP.NET Web API framework is a framework provided by Microsoft for building HTTP services that can be consumed by various clients, including web browsers, mobile devices, and desktop applications. It is designed to facilitate the development of RESTful APIs using…

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ASP.NET MVC is a web application framework for the .NET Platform used for building full stack web applications using the Model-View-Controller pattern. The correct answer to the question “What is ASP.NET MVC framework?” would be: ASP.NET MVC (Model-View-Controller) is a web application framework developed by Microsoft that implements the MVC design pattern. MVC separates an application into three main components: Model: Represents the application’s data and business logic. View: Represents the user interface and presentation layer of the application. Controller:…

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ExecuteScalar returns output value where as ExecuteNonQuery does not return any value but the number of rows affected by the query. ExecuteScalar used for fetching a single value and ExecuteNonQuery used to execute Insert and Update statements. In the context of ASP.NET and database interactions, ExecuteScalar and ExecuteNonQuery are methods provided by ADO.NET for executing SQL commands against a database. Here’s the difference between them: ExecuteScalar: The ExecuteScalar method is used when you expect your SQL query to return a…

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