Asp.Net programmers use the term “postback” to refer to a page refresh that accesses the server. A page momentarily flickers during postback because the user’s browser momentarily wipes the page clean before rendering the newly received content. Microsoft, recognizing this problem, provides programmers with several methods of eliminating flickering during postback, including its Ajax framework. Ajax, or Asynchronous Javascript and Xml, eliminates flickering by limiting postbacks to only the portion of the page requesting data. Writer Bio
