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<p class=MsoNormal><span style='color:#1F497D'>I have figured it out, capture </span><span
style='font-size:9.5pt;font-family:"Courier New";color:#2B91AF'>WebException</span><span
style='color:#1F497D'>, and get the SOAP error from its ResponseStream<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>.. try{<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>….<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;
font-family:"Courier New"'> }<span style='color:blue'>catch</span> (<span
style='color:#2B91AF'>WebException</span> ee)<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;
font-family:"Courier New"'> {<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;
font-family:"Courier New"'> <span style='color:blue'>try</span><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;
font-family:"Courier New"'> {<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;
font-family:"Courier New"'> <span style='color:#2B91AF'>Stream</span>
baseStream = ee.Response.GetResponseStream();<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;
font-family:"Courier New"'> <span style='color:#2B91AF'>StreamReader</span>
sr = <span style='color:blue'>new</span> <span style='color:#2B91AF'>StreamReader</span>(baseStream);<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;
font-family:"Courier New"'> <span style='color:blue'>string</span>
result = sr.ReadToEnd();<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;
font-family:"Courier New"'> sr.Close();<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;
font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;
font-family:"Courier New"'> <span style='color:blue'>int</span>
s = result.IndexOf(<span style='color:#A31515'>"
<SOAP-ENV:Fault>"</span>);<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;
font-family:"Courier New"'> <span style='color:blue'>int</span>
e = result.LastIndexOf(<span style='color:#A31515'>"
</SOAP-ENV:Fault>"</span>);<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;
font-family:"Courier New"'> <span style='color:blue'>if</span>
(s > 0 && e > 0)<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;
font-family:"Courier New"'> result = result.Substring(s +
16, e - s - 16);<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;
font-family:"Courier New"'> }<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;
font-family:"Courier New"'> <span style='color:blue'>catch</span>(<span
style='color:#2B91AF'>Exception</span> e2)<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;
font-family:"Courier New"'> {<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;
font-family:"Courier New"'> response = e2.Message;<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;
font-family:"Courier New"'> }<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;
font-family:"Courier New"'> }<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
vbox-dev-bounces@virtualbox.org [mailto:vbox-dev-bounces@virtualbox.org] <b>On
Behalf Of </b>DavidW<br>
<b>Sent:</b> Monday, May 31, 2010 1:32 PM<br>
<b>To:</b> vbox-dev@virtualbox.org<br>
<b>Subject:</b> [vbox-dev] How to get the return codes when call a webservice
method?<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>For example, when I do openRemoteSession on IVirtualBox, how
should I get the error codes returned? I am using HttpRequest in .NET, I found
when error happens, I only get a 550 http error. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:CharterBT-Roman'>See also: openExistingSession<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:CharterBT-Roman'>If this method fails, the following error codes
may be reported:<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:CMSY10'>_ </span><span style='font-size:9.0pt;font-family:BeraSansMono-Roman'>E_UNEXPECTED:
</span><span style='font-size:10.0pt;font-family:CharterBT-Roman'>Virtual machine
not registered.<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:CMSY10'>_ </span><span style='font-size:9.0pt;font-family:BeraSansMono-Roman'>E_INVALIDARG:
</span><span style='font-size:10.0pt;font-family:CharterBT-Roman'>Invalid
session type </span><span style='font-size:9.0pt;font-family:BeraSansMono-Roman'>type</span><span
style='font-size:10.0pt;font-family:CharterBT-Roman'>.<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:CMSY10'>_ </span><span style='font-size:9.0pt;font-family:BeraSansMono-Roman'>VBOX_E_OBJECT_NOT_FOUND:
</span><span style='font-size:10.0pt;font-family:CharterBT-Roman'>No machine
matching </span><span style='font-size:9.0pt;font-family:BeraSansMono-Roman'>machineId<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:CMSY10'>_ </span><span style='font-size:9.0pt;font-family:BeraSansMono-Roman'>VBOX_E_INVALID_OBJECT_STATE:
</span><span style='font-size:10.0pt;font-family:CharterBT-Roman'>Session
already open or being<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:CMSY10'>_ </span><span style='font-size:9.0pt;font-family:BeraSansMono-Roman'>VBOX_E_IPRT_ERROR:
</span><span style='font-size:10.0pt;font-family:CharterBT-Roman'>Launching
process for machine failed.<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:CMSY10'>_ </span><span style='font-size:9.0pt;font-family:BeraSansMono-Roman'>VBOX_E_VM_ERROR:
</span><span style='font-size:10.0pt;font-family:CharterBT-Roman'>Failed to
assign machine to session.<o:p></o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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