"The target '__Page' for the callback could not be found or did not implement ICallbackEventHandler."的解决办法 .

"The target '__Page' for the callback could not be found or did not implement ICallbackEventHandler."的解决办法

其实这个问题很简单，解决办法可能出乎大家的意料。就是在public partial class Default : System.Web.UI.Page后面加上“, ICallbackEventHandler” 变为：public partial class Default : System.Web.UI.Page, ICallbackEventHandler

就这么简单问题就解决了^_^