System.Net.WebException异常处理问题

[menglongfeihu007]

用户代码未处理 System.Reflection.TargetInvocationException
Message=操作过程中出现异常，结果无效。有关异常的详细信息，请查看 InnerException。
StackTrace:
位于 System.ComponentModel.AsyncCompletedEventArgs.RaiseExceptionIfNecessary()
位于 Silverlight.DBOperationService.ISSelectCompletedEventArgs.get_Result()
位于 Silverlight.Events.ReportEvents.sys_ISSelect(Object sender, ISSelectCompletedEventArgs e)
位于 Silverlight.DBOperationService.DBOperationClient.OnISSelectCompleted(Object state)
InnerException: System.ServiceModel.CommunicationException
Message=远程服务器返回了错误: NotFound。
StackTrace:
位于 System.ServiceModel.AsyncResult.End[TAsyncResult](IAsyncResult result)
位于 System.ServiceModel.Channels.ServiceChannel.SendAsyncResult.End(SendAsyncResult result)
位于 System.ServiceModel.Channels.ServiceChannel.EndCall(String action, Object[] outs, IAsyncResult result)
位于 System.ServiceModel.ClientBase`1.ChannelBase`1.EndInvoke(String methodName, Object[] args, IAsyncResult result)
位于 Silverlight.DBOperationService.DBOperationClient.DBOperationClientChannel.EndISSelect(IAsyncResult result)
位于 Silverlight.DBOperationService.DBOperationClient.Silverlight.DBOperationService.IDBOperation.EndISSelect(IAsyncResult result)
位于 Silverlight.DBOperationService.DBOperationClient.OnEndISSelect(IAsyncResult result)
位于 System.ServiceModel.ClientBase`1.OnAsyncCallCompleted(IAsyncResult result)
InnerException: System.Net.WebException
Message=远程服务器返回了错误: NotFound。
StackTrace:
位于 System.Net.Browser.AsyncHelper.BeginOnUI(SendOrPostCallback beginMethod, Object state)
位于 System.Net.Browser.BrowserHttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
位于 System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelAsyncRequest.CompleteGetResponse(IAsyncResult result)
InnerException: System.Net.WebException
Message=远程服务器返回了错误: NotFound。
StackTrace:
位于 System.Net.Browser.BrowserHttpWebRequest.InternalEndGetResponse(IAsyncResult asyncResult)
位于 System.Net.Browser.BrowserHttpWebRequest.<>c__DisplayClass5.<EndGetResponse>b__4(Object sendState)
位于 System.Net.Browser.AsyncHelper.<>c__DisplayClass2.<BeginOnUI>b__0(Object sendState)
InnerException:

[bdmh]

反射的错误，还是仔细查查是不是类型不对

[许文君]

引用 1 楼 bdmh 的回复:

反射的错误，还是仔细查查是不是类型不对

+1

[menglongfeihu007]

引用 1 楼 bdmh 的回复:

反射的错误，还是仔细查查是不是类型不对

主要还是下面的错误，System.ServiceModel.CommunicationException Message=远程服务器返回了错误: NotFound。 StackTrace: 位于 System.ServiceModel.AsyncResult.End[TAsyncResult](IAsyncResult result) 位于 System.ServiceModel.Channels.ServiceChannel.SendAsyncResult.End(SendAsyncResult result) 位于 System.ServiceModel.Channels.ServiceChannel.EndCall(String action, Object[] outs, IAsyncResult result) 位于 System.ServiceModel.ClientBase`1.ChannelBase`1.EndInvoke(String methodName, Object[] args, IAsyncResult result) 位于 Silverlight.DBOperationService.DBOperationClient.DBOperationClientChannel.EndISSelect(IAsyncResult result) 位于 Silverlight.DBOperationService.DBOperationClient.Silverlight.DBOperationService.IDBOperation.EndISSelect(IAsyncResult result) 位于 Silverlight.DBOperationService.DBOperationClient.OnEndISSelect(IAsyncResult result) 位于 System.ServiceModel.ClientBase`1.OnAsyncCallCompleted(IAsyncResult result) InnerException: System.Net.WebException Message=远程服务器返回了错误: NotFound。 StackTrace: 位于 System.Net.Browser.AsyncHelper.BeginOnUI(SendOrPostCallback beginMethod, Object state) 位于 System.Net.Browser.BrowserHttpWebRequest.EndGetResponse(IAsyncResult asyncResult) 位于 System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelAsyncRequest.CompleteGetResponse(IAsyncResult result) InnerException: System.Net.WebException Message=远程服务器返回了错误: NotFound。 StackTrace: 位于 System.Net.Browser.BrowserHttpWebRequest.InternalEndGetResponse(IAsyncResult asyncResult) 位于 System.Net.Browser.BrowserHttpWebRequest.<>c__DisplayClass5.<EndGetResponse>b__4(Object sendState) 位于 System.Net.Browser.AsyncHelper.<>c__DisplayClass2.<BeginOnUI>b__0(Object sendState) InnerException:

[风一样的大叔]

遇到此问题 多半是 this.Dispatcher.BeginInvoke((Action)delegate(){}) 大括号中的代码出了异常 如里面访问的数组单元被外部线程清空等 但是vs又捕捉不到 主程序会崩溃