The .Net framework delivers value with much faster with time to market, improved flexibility and reduced costs..Net has been one of the most integral Microsoft windows component for building and running applications and XML Web Services.
ASP.NET has evolved over the years over ASP. However ASP.NET differs from ASP in many ways. ASP uses a Code Render block, where as ASP.NET uses a compiled Code Declaration block. ASP is based on Request and Response whereas ASP.NET is Event Drive, Object Oriented, supports Exception Handling, supports Cultures, etc. You can say good bye to your ASP client side validations because ASP.NET supports inbuilt client side validations. In ASP sessions were not transferable, however ASP.NET sessions can span across Servers, it can survive server crashes and can also work with browsers which do not support cookies. ASP apparently is built on top of windows & IIS, it was always a separate entity and its functionality was limited, thus it required a lot of 3rd party tools. ASP.NET is an integral part of the OS under the .Net framework.
Discover the top reasons for developers to build and convert applications using the .NET framework.
Compiled Execution
ASP.NET is much faster than classic ASP; however, no explicit compile step is required! ASP.NET automatically detects any changes, dynamically compiles the files if needed, and store the compiled results to reuse for subsequent requests. Dynamic compilation ensures that your application is always up to date, and compiled execution makes it fast. Most applications migrated see a 3x to 5x increase in pages served.
Output Caching
ASP.NET output caching can dramatically improve the performance and scalability of your application. When output caching is enabled on a page, ASP.NET executes the page just once, and saves the result in memory in addition to sending it to the user. When another user requests the same page, ASP.NET serves the cached result from memory without re-executing the page. Output caching is configurable, and can be used to cache individual regions or an entire page. Output caching can dramatically improve the performance of data-driven pages by eliminating the need to query the database on every request.
Web-Farm Session State
ASP.NET session state lets you share session data user-specific state values across all machines in your Web farm. Now a user can hit different servers in the web farm over multiple requests and still have full access to his/her session. And since business components created with the .NET Framework are free-threaded, you no longer need to worry about thread affinity.
Enhanced Reliability
ASP.NET automatically detects and recovers from errors like deadlocks and memory leaks to ensure your application is always available to your users.
Easy Development
The .NET Framework makes it easy to deploy, run, and manage applications. Application isolation and automatic version control of components can help prevent versioning conflicts. ASP.NET now lets you update compiled components without restarting the web server. In the past with classic COM components, the developer would have to restart the web server each time he deployed an update. With ASP.NET, you simply copy the component over the existing DLL; ASP.NET will automatically detect the change and start using the new code. ASP.NET dramatically simplifies installation of your application. With ASP.NET, you can deploy an entire application as easily as an HTML page: just copy it to the server. No need to run regsvr32 to register any components, and configuration settings are stored in an XML file within the application.
Mobility Support
ASP.NET Mobile Controls let you easily target cell phones, PDA's and other smart devices. Over 80 mobile Web devices are using ASP.NET. You write your application just once, and the mobile controls automatically generate WAP/WML, HTML, or iMode as required by the requesting device.
Native XML Web Service Support
XML Web services allow applications to communicate and share data over the Internet, regardless of operating system or programming language. ASP.NET makes XML Web Services simple to use. Any class can be converted into an XML Web Service with just a few lines of code, and can be called by any SOAP client. Likewise, ASP.NET makes it incredibly easy to call XML Web Services from your application.
Powerful, Granular Security
For today's internet environment .NET framework gives you code access security. The .Net framework can collect evidence about the origin of the author of any application. Then the .Net framework run time environment can combine these evidences with administrator-set or default security policies to make fine grained decision about whether to run that application or enable it to access a particular resource.
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