1、ajaxTechnical background

      It is undeniable that the popularity of ajax technology has benefited from the vigorous promotion of google , it is precisely because of google earth, google suggest and gmail etc.# The widespread application of ##ajax technology has given rise to the popularity of ajax. And this also makes Microsoft feel extremely embarrassed, because as early as 97, Microsoft had already invented the key technology in ajax , and when #99#IE5 was launched, it began to support XmlHttpRequestObject, and Microsoft has previously begun to apply ajax in some of its products, such as some applications in the MSDN website menu . Unfortunately, I don’t know what the idea was. After Microsoft invented the core technology of ajax, it did not see its potential and develop and promote it. Instead, it Set aside. I personally find this very strange, because with Microsoft's resources and its strategic vision, it should not be impossible to see the prospects of ajax technology. The only explanation may be that the disappearance of its main competitor Netscape at that time made it paralyzed and slow. After all, giants also take a nap, such as IBM once made strategic mistakes against Microsoft. It was this mistake that contributed to its current competitor google's leading position in ajax, and in factgoogleThe current technological leadership in ajax is something that Microsoft cannot achieve. I will talk about this later Ajax defects will also be mentioned.Now Microsoft is also aware of this problem, so it has begun to catch up in the ajax field, such as launching its own ajax Framework atlas, and also provides an interface for implementing asynchronous callback in .NET2.0, namely ICallBackInterface. So why is Microsoft so nervous about falling behind in ajax? Now let us analyze the profound meaning hidden behind ajax technology.