那位大侠解释以下这段话?
Microsoft provides two solutions for managing asynchronous postbacks in an ASP.NET 2.0 Web application: a callback framework solution using ASP.NET client callbacks and a full framework solution using ASP.NET AJAX.
在ESRI的帮助中看这段话,不太能理解。希望高手能解释一下这两种异步回传机制。
能贴上相关资料或网址就更感谢了!