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ASP.NET Web Forms
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<p>ASP.NET Web Forms is a <a href="/facts/Web_application_framework/8f1CVHDX">web application framework</a> and one of several programming models supported by the <a href="/facts/Microsoft/nGIDDXdx">Microsoft</a> <a href="/facts/ASP.NET/xq7KM8mN">ASP.NET</a> technology. Web Forms applications can be written in any <a href="/facts/Programming_language/cWTYbgWa">programming language</a> which supports the <a href="/facts/Common_Language_Runtime/4Y0cUdkd">Common Language Runtime</a>, such as <a href="/facts/C_Sharp_/UC2gxeyb">C#</a> or <a href="/facts/Visual_Basic_.NET/09mPEo4q">Visual Basic</a>. The main building blocks of Web Forms pages are <i>server controls</i>, which are reusable components responsible for rendering <a href="/facts/HTML/sSc3fT78">HTML</a> markup and responding to events. A technique called <i>view state</i> is used to persist the <a href="/facts/State_(computer_science)/4Yu8xXHS">state</a> of server controls between normally <a href="/facts/Stateless_protocol/TgJncyPa">stateless</a> <a href="/facts/Hypertext_Transfer_Protocol/TWtvf7JD">HTTP</a> requests. </p><p>Web Forms was included in the original <a href="/facts/.NET_Framework/J6QDAUhP">.NET Framework</a> 1.0 release in 2002 (see <a href="/facts/.NET_Framework_version_history/9LBLRl6q">.NET Framework version history</a> and <a href="/facts/ASP.NET/xq7KM8mN">ASP.NET version history</a>), as the first programming model available in ASP.NET. Unlike newer ASP.NET components, Web Forms is not supported by <a href="/facts/ASP.NET_Core/t93JjWxg">ASP.NET Core</a>. </p>