Active Server Page Extended ASP.NET Script Format
Microsoft
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Files with the .ASPX extension contain website code generated and executed by the server. It can contain scripts written in VBScript or C#, but it is only the created HTML source code that is sent to the browser.

ASPX files are executed by servers in the ASP.NET environment, and web pages written in this language, referred to as .NET forms, can often be identified as having this extension. To edit ASPX files, one can use software from the MS Visual family or a text editor.

ASPX (Active Server Page Extended) files are web page files generatd by webserver. Sometimes referred to as NET Web Forms, the format was developed for Microsoft ASP.NET paltform. ASPX files store scripts ans source code written in Visual Basic or C# language.

Th goal of ASPX files

The goal of ASPX file is to inform server how to open the page and which elements should be added during rendering process. Thanks to ASPX file browsers has access to information regarding text, images, Javascript scripts, and other elements to be rendered in the browser’s window.

Use of ASPX files

Scripts stored in ASPX files allow programes to create dynamic websites, apps, and web services. ASPX are commonly created using Microsoft Visual Web Developer tool, which is a part of Microsoft ASP.NET.

Identifying ASPX files in the browser

Presence of ASPX files can be easily identified in a web browser when the URL ends with ‘.aspx’. Such situations are rather rare as ASPX will only show when the ASPX file was sent by the server and not loaded from file directory. This can signal errors related to the file or the URL.

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