ASP.NET Web Forms are a part of the ASP.NET framework that allows developers to create dynamic, interactive websites and web applications using the .NET framework. It is a server-side technology, meaning that all the processing is done on the server before the page is sent to the user’s browser.
Web Forms use a page-based programming model where pages are composed of controls and code-behind files. Controls are elements that provide user interface capabilities such as text boxes, labels, and buttons. Code-behind files contain the logic that is executed when a page is requested.
For example, a web form might have a text box, a label, and a button. When the user enters a value into the text box and clicks the button, the code-behind file will be executed and the label will be updated with the value entered in the text box.