尝试捕获发送到WebService的XML失败

Question

所以我遇到了正确传递给webservice映射的数据的问题。我试图从.net C＃应用程序中捕获XML，因为它传递给Web服务。我尝试在web.config中使用Fiddler和system.diagnostics，但我只在system.diagnostics创建的文件中得到结果。我通过localhost，通过VPN（代理服务器）运行到webservice。下面是web.config中的代码以及它返回的内容。获得此返回数据的任何帮助都会很棒。

代码：

<system.diagnostics>
    <trace autoflush="true">
    </trace>
    <sharedListeners>
      <add name="console"
      type="System.Diagnostics.ConsoleTraceListener" traceOutputOptions="DateTime" />
      <add name="file"
      type="System.Diagnostics.TextWriterTraceListener" initializeData="testrequest.log"
          traceOutputOptions="DateTime, Callstack" />
    </sharedListeners>
    <sources>
      <source name="LowLevelDesign" switchValue="Verbose">
        <listeners>
          <add name="file" />
        </listeners>
      </source>
      <source name="System.Net.Http" switchValue="Verbose">
        <listeners>
          <add name="file" />
        </listeners>
      </source>
      <source name="System.Net.HttpListener" switchValue="Verbose">
        <listeners>
          <add name="file" />
        </listeners>
      </source>
      <source name="System.Net" switchValue="Verbose">
        <listeners>
          <add name="file" />
        </listeners>
      </source>
      <source name="System.Net.Sockets" switchValue="Verbose">
        <listeners>
          <add name="file" />
        </listeners>
      </source>
    </sources>
  </system.diagnostics>

生成文件的结果。

System.Net Information: 0 : [5720] Current OS installation type is 'Client'.
    DateTime=2015-06-26T03:22:58.3265794Z
    Callstack=   at System.Environment.GetStackTrace(Exception e, Boolean needFileInfo)
   at System.Environment.get_StackTrace()
   at System.Diagnostics.TraceEventCache.get_Callstack()
   at System.Diagnostics.TraceListener.WriteFooter(TraceEventCache eventCache)
   at System.Diagnostics.TraceListener.TraceEvent(TraceEventCache eventCache, String source, TraceEventType eventType, Int32 id, String message)
   at System.Diagnostics.TraceSource.TraceEvent(TraceEventType eventType, Int32 id, String message)
   at System.Net.Logging.PrintLine(TraceSource traceSource, TraceEventType eventType, Int32 id, String msg)
   at System.Net.Logging.PrintInfo(TraceSource traceSource, String msg)
   at System.Net.ComNetOS..cctor()
   at System.Net.ServicePointManager..cctor()
   at System.Net.ServicePointManager.set_InternalConnectionLimit(Int32 value)
   at System.Net.ServicePointManager.set_DefaultConnectionLimit(Int32 value)
   at System.Web.HttpRuntime.SetAutoConfigLimits(ProcessModelSection pmConfig)
   at System.Web.HttpRuntime.SetThreadPoolLimits()
   at System.Web.HttpRuntime.HostingInit(HostingEnvironmentFlags hostingFlags, PolicyLevel policyLevel, Exception appDomainCreationException)
   at System.Web.HttpRuntime.InitializeHostingFeatures(HostingEnvironmentFlags hostingFlags, PolicyLevel policyLevel, Exception appDomainCreationException)
   at System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters, PolicyLevel policyLevel, Exception appDomainCreationException)
   at System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters, PolicyLevel policyLevel)