Microsoft has release Visual Studio 2011 Developer preview. Visual Studio 11 Developer Preview is an integrated development environment that seamlessly spans the entire life cycle of software creation, including architecture, user interface design, code creation, code insight and analysis, code deployment, testing, and validation. Download from here

Most of the time we are in the job of developing web page which gets user inputs.  In all of these forms we need to check for changes in these fields ,when the user leaves from the current page alert them. This has been a tedious job and have to ...