asp.net ajax异常处理详细说明

1，注册scriptmanager的asyncpostbackerror事件，并在服务器实现它，并抛出被处理过的异常（根据是否为null,可能需要抛出e.exception或e.exception.innerexception）

2，客户端用js来响应，sys.webforms.pagerequestmanager.getinstance().add_endrequest(endrequesthandler);添加处理程序

3，实现endrequesthandler，错误信息基本在第二个参数"args“里面，

4，此时已经完成，由于网上没搜到现成文档（有的话请留言），这个args里面到底有什么经过我的枚举，暂列如下

内容比较多，我还是先把枚举的方法写出来吧

sys.webforms.pagerequestmanager.getinstance().add_endrequest(endrequesthandler);

function endrequesthandler(sender, args) {
    //if (args.get_error() != undefined) {alert(args.get_error().message.replace(/.*exception:/,'')); args.set_errorhandled(true);  }
    if (args.get_error() != undefined) {
        var members = 'the 'args' members are:nn';
        for (var i in args) {
            members += 't' + i;
            var ai = eval("args." + i);
            if (typeof ai == "function") {
                try {
                    members += "()";
                    ai = eval("args." + i+"()");
                } catch (err) {
                    members += " not implement n";
                    continue;
                }
            }
            members += 'n';
            if (typeof ai == "string") continue;
            for (var t in ai) {
                members += 'tt' + t;
                if (typeof ai == "function")
                    var ait = eval("args." + i + "()." + t);
                else
                    var ait = eval("args." + i + "." + t);
                if (typeof ait == "function") {
                    try {
                        members += "()";
                        ait = eval("args." + i + "." + t + "()");
                    } catch (err) {
                        members += " not implement n";
                        continue;
                    }
                }
                members += "n";
                if (typeof ait == "string") continue;
                for (var m in ait) {
                    members += 'ttt' + m + 'n';
                }
            }
        }
        document.write(""+members+"");//members如果显示请自行处理
        args.set_errorhandled(true);
     }
}

the 'args' members are:

 _errorhandled
 _error
  message
  name
  https教程tatuscode
   format
   localeformat
   _toformattedstring
  stack
  filename
  linenumber
   format
   localeformat
   _toformattedstring
  popstackframe()
 _dataitems
 _response
  _webrequest
   _url
   _headers
   _body
   _usercontext
   _httpverb
   _executor
   _invokecalled
   _timeout
   _events
   add_completed
   remove_completed
   completed
   _get_eventhandlerlist
   get_url
   set_url
   get_headers
   get_httpverb
   set_httpverb
   get_body
   set_body
   get_usercontext
   set_usercontext
   get_executor
   set_executor
   get_timeout
   set_timeout
   getresolvedurl
   invoke
   constructor
  _resultobject
  _xmlhttprequest
   dispatchevent
   removeeventlistener
   onreadystatechange
   open
   readystate
   setrequestheader
   send
   status
   responsetext
   channel
   responsexml
   statustext
   abort
   getallresponseheaders
   getresponseheader
   sendasbinary
   overridemimetype
   multipart
   mozbackgroundrequest
   withcredentials
   upload
   onuploadprogress
   onabort
   onerror
   onload
   onloadstart
   onprogress
   getinterface
  _responseavailable
  _timedout
  _timer
  _aborted
  _started
  _onreadystatechange()
  _cleartimer()
  _ontimeout()
  get_timedout()
  get_started()
  get_responseavailable()
  get_aborted()
  executerequest() not implement
  getresponseheader() not implement
  getallresponseheaders() not implement
  get_responsedata() not implement
  get_statuscode() not implement
  get_statustext() not implement
  get_xml() not implement
  abort()
  constructor()
  get_webrequest()
  _set_webrequest()
  get_object() not implement
 get_dataitems()
 get_error()
  message
  name
  httpstatuscode
  stack
  filename
  linenumber
  popstackframe
 get_errorhandled()
 set_errorhandled() not implement
 get_response()
  _webrequest
  _resultobject
  _xmlhttprequest
  _responseavailable
  _timedout
  _timer
  _aborted
  _started
  _onreadystatechange
  _cleartimer
  _ontimeout
  get_timedout
  get_started
  get_responseavailable
  get_aborted
  executerequest
  getresponseheader
  getallresponseheaders
  get_responsedata
  get_statuscode
  get_statustext
  get_xml
  abort
  constructor()
   callbasemethod
   getbasemethod
   getbasetype
   getinterfaces
   getname
   implementsinterface
   inheritsfrom
   initializebase
   isimplementedby
   isinstanceoftype
   registerclass
   registerinterface
   resolveinheritance
   registerenum
  get_webrequest
  _set_webrequest
  get_object
 constructor() not implement