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POError Consuming a RPC/Encoded SOAP web service in .NET
 

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  1. POError Consuming a RPC/Encoded SOAP web service in .NET
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    <p>I am receiving the following error when calling a web service method.</p> <p><strong>Cannot assign object of type System.Xml.XmlNode[] to an object of type System.String.</strong></p> <p>The web service is a PHP service. I created my proxy class using wsdl.exe from the wsdl document defined here - <a href="http://webservice.intelecast.com.au/traffic/PublicSoap/server.php?wsdl" rel="nofollow noreferrer">http://webservice.intelecast.com.au/traffic/PublicSoap/server.php?wsdl</a></p> <p>Below is the proxy client method I am calling.</p> <pre><code>[System.Web.Services.Protocols.SoapRpcMethodAttribute("http://webservice.intelecast.com.au/traffic/PublicSoap/server.php#getAllTraffic", RequestNamespace="http://webservice.intelecast.com.au/traffic/PublicSoap/server.php", ResponseNamespace="http://webservice.intelecast.com.au/traffic/PublicSoap/server.php")] [return: System.Xml.Serialization.SoapElementAttribute("return")] public TmcInfo[] getAllTmcTraffic(string[] States, int[] EventCodes) { object[] results = this.Invoke("getAllTmcTraffic", new object[] { //Error here States, EventCodes}); </code></pre> <p>It appear the proxy class is failing to deal with the complex types/arrays defined in the wsdl...I am unsure now how to proceed can't find a solution on the web anywhere.</p> <p>Below is the SOAP response i am receiving. This all appears valid.</p> <pre><code>&lt;?xml version="1.0" encoding="iso-8859-1"?&gt; &lt;SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:tns="http://webservice.intelecast.com.au/traffic/PublicSoap/server.php"&gt; &lt;SOAP-ENV:Body&gt; &lt;ns1:getAllTrafficResponse xmlns:ns1="http://webservice.intelecast.com.au/traffic/PublicSoap/server.php"&gt; &lt;return xsi:type="SOAP-ENC:Array" SOAP-ENC:arrayType="tns:TrafficInfo[2]"&gt; &lt;item xsi:type="tns:TrafficInfo"&gt; &lt;id xsi:type="xsd:string"&gt;1245632068110&lt;/id&gt; &lt;entryDate xsi:type="xsd:datetime"&gt;22/06/2009 10:54:28&lt;/entryDate&gt; &lt;direction xsi:type="xsd:int"&gt;0&lt;/direction&gt; &lt;extent xsi:type="xsd:int"&gt;1&lt;/extent&gt; &lt;locationCode xsi:type="xsd:int"&gt;31593&lt;/locationCode&gt; &lt;countryCode xsi:type="xsd:int"&gt;4&lt;/countryCode&gt; &lt;ltn xsi:type="xsd:int"&gt;56&lt;/ltn&gt; &lt;diversionAdvice xsi:type="xsd:int"&gt;0&lt;/diversionAdvice&gt; &lt;slAdvice xsi:type="xsd:int"&gt;0&lt;/slAdvice&gt; &lt;quantifier xsi:type="xsd:int"&gt;0&lt;/quantifier&gt; &lt;suppInfoCode xsi:type="xsd:int"&gt;0&lt;/suppInfoCode&gt; &lt;addEvent xsi:type="xsd:int"&gt;0&lt;/addEvent&gt; &lt;detDivAdvice xsi:type="xsd:int"&gt;0&lt;/detDivAdvice&gt; &lt;destinations xsi:type="xsd:int"&gt;0&lt;/destinations&gt; &lt;clSourceProblem xsi:type="xsd:int"&gt;0&lt;/clSourceProblem&gt; &lt;eventCode xsi:type="xsd:int"&gt;802&lt;/eventCode&gt; &lt;timeInfo xsi:type="tns:TimeInfo"&gt; &lt;start xsi:type="xsd:string"&gt;21/06/2009 14:00:00&lt;/start&gt; &lt;finish xsi:type="xsd:string"&gt;05/11/2009 14:00:00&lt;/finish&gt; &lt;timeZone xsi:type="xsd:string"&gt;Australia/Brisbane&lt;/timeZone&gt; &lt;/timeInfo&gt; &lt;location xsi:type="tns:Point"&gt; &lt;lat xsi:type="xsd:float"&gt;-27.3112692120521&lt;/lat&gt; &lt;lon xsi:type="xsd:float"&gt;153.029100894928&lt;/lon&gt; &lt;/location&gt; &lt;additionalStreetInfo xsi:type="SOAP-ENC:Array" SOAP-ENC:arrayType="tns:AdditionalStreetInfo[1]"&gt; &lt;item xsi:type="tns:AdditionalStreetInfo"&gt; &lt;street xsi:type="xsd:string"&gt;Bracken Ridge Rd&lt;/street&gt; &lt;type xsi:type="xsd:string"&gt;CROSS&lt;/type&gt; &lt;/item&gt; &lt;/additionalStreetInfo&gt; &lt;address xsi:type="tns:Address"&gt; &lt;streetNumber xsi:type="xsd:string"/&gt; &lt;streetName xsi:type="xsd:string"&gt;Bracken Ridge Rd&lt;/streetName&gt; &lt;suburb xsi:type="xsd:string"&gt;Bracken Ridge&lt;/suburb&gt; &lt;state xsi:type="xsd:string"&gt;QLD&lt;/state&gt; &lt;/address&gt; &lt;/item&gt; &lt;item xsi:type="tns:TrafficInfo"&gt; &lt;id xsi:type="xsd:string"&gt;1245632111995&lt;/id&gt; &lt;entryDate xsi:type="xsd:datetime"&gt;22/06/2009 10:55:11&lt;/entryDate&gt; &lt;direction xsi:type="xsd:int"&gt;1&lt;/direction&gt; &lt;extent xsi:type="xsd:int"&gt;1&lt;/extent&gt; &lt;locationCode xsi:type="xsd:int"&gt;31592&lt;/locationCode&gt; &lt;countryCode xsi:type="xsd:int"&gt;4&lt;/countryCode&gt; &lt;ltn xsi:type="xsd:int"&gt;56&lt;/ltn&gt; &lt;diversionAdvice xsi:type="xsd:int"&gt;0&lt;/diversionAdvice&gt; &lt;slAdvice xsi:type="xsd:int"&gt;0&lt;/slAdvice&gt; &lt;quantifier xsi:type="xsd:int"&gt;0&lt;/quantifier&gt; &lt;suppInfoCode xsi:type="xsd:int"&gt;0&lt;/suppInfoCode&gt; &lt;addEvent xsi:type="xsd:int"&gt;0&lt;/addEvent&gt; &lt;detDivAdvice xsi:type="xsd:int"&gt;0&lt;/detDivAdvice&gt; &lt;destinations xsi:type="xsd:int"&gt;0&lt;/destinations&gt; &lt;clSourceProblem xsi:type="xsd:int"&gt;0&lt;/clSourceProblem&gt; &lt;eventCode xsi:type="xsd:int"&gt;802&lt;/eventCode&gt; &lt;timeInfo xsi:type="tns:TimeInfo"&gt; &lt;start xsi:type="xsd:string"&gt;21/06/2009 14:00:00&lt;/start&gt; &lt;finish xsi:type="xsd:string"&gt;05/11/2009 14:00:00&lt;/finish&gt; &lt;timeZone xsi:type="xsd:string"&gt;Australia/Brisbane&lt;/timeZone&gt; &lt;/timeInfo&gt; &lt;location xsi:type="tns:Point"&gt; &lt;lat xsi:type="xsd:float"&gt;-27.3125370752656&lt;/lat&gt; &lt;lon xsi:type="xsd:float"&gt;153.042898178101&lt;/lon&gt; &lt;/location&gt; &lt;additionalStreetInfo xsi:type="SOAP-ENC:Array" SOAP-ENC:arrayType="tns:AdditionalStreetInfo[1]"&gt; &lt;item xsi:type="tns:AdditionalStreetInfo"&gt; &lt;street xsi:type="xsd:string"&gt;Bracken Ridge Rd&lt;/street&gt; &lt;type xsi:type="xsd:string"&gt;CROSS&lt;/type&gt; &lt;/item&gt; &lt;/additionalStreetInfo&gt; &lt;address xsi:type="tns:Address"&gt; &lt;streetNumber xsi:type="xsd:string"/&gt; &lt;streetName xsi:type="xsd:string"&gt;Bracken Ridge Rd&lt;/streetName&gt; &lt;suburb xsi:type="xsd:string"&gt;Bracken Ridge&lt;/suburb&gt; &lt;state xsi:type="xsd:string"&gt;QLD&lt;/state&gt; &lt;/address&gt; &lt;/item&gt; &lt;/return&gt; &lt;/ns1:getAllTrafficResponse&gt; &lt;/SOAP-ENV:Body&gt; &lt;/SOAP-ENV:Envelope&gt; </code></pre>
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