WCF client returns empty array - XML response seems OK

I'm trying to create a simple WCF Client (C#) for a web service hosted on our intranet. Using Fiddler and SoapUI I can see the request and response seems OK, but when I run the code an empty array is returned. I'll try to paste only the relevant lines (and yet will be a LOT of stuff), but feel free to ask if I missed something: WSDL: ``` <s0:definitions name="Workforce_2_1_0" targetNamespace="ld:Logical/Workforce_2_1_0_ws" xmlns:s0="http://schemas.xmlsoap.org/wsdl/" xmlns:s1="http://schemas.xmlsoap.org/ws/2004/09/policy" xmlns:s2="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" xmlns:s3="ld:Logical/Workforce_2_1_0_ws" xmlns:s4="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:wsp="http://schemas.xmlsoap.org/ws/2004/09/policy"> <s0:documentation>Oracle Data Service Integrator Web Service</s0:documentation> <s1:Policy s2:Id="Mtom.xml"> <wsoma:OptimizedMimeSerialization xmlns:wsoma="http://schemas.xmlsoap.org/ws/2004/09/policy/optimizedmimeserialization"/> </s1:Policy> <wsp:UsingPolicy s0:Required="true"/> <s0:types> <xs:schema elementFormDefault="qualified" targetNamespace="ld:Logical/Workforce_2_1_0_ws" xmlns:dsns0="http://schemata.enterprise.biz/hr/2.1" xmlns:s1="ld:Logical/Workforce_2_1_0_ws" xmlns:s2="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:stns="ld:Logical/Workforce_2_1_0_ws" xmlns:tns="ld:Logical/Workforce_2_1_0_ws" xmlns:xs="http://www.w3.org/2001/XMLSchema"> <xs:import namespace="http://schemata.enterprise.biz/hr/2.1" schemaLocation="http://server123.enterprise.com:31900/MyService/Services/Workforce_2-1-0?SCHEMA%2FMyService%2FResources%2FSchemas%2FWorkForce_2.1"/> <xs:element name="getByKey"> <xs:complexType> <xs:sequence> <xs:element name="key" type="xs:string"/> </xs:sequence> </xs:complexType> </xs:element> </xs:schema> </s0:types> <s0:message name="getByKeyIn"> <s0:part element="s3:getByKey" name="parameters"/> </s0:message> <s0:message name="getByKeyOut"> <s0:part element="s3:getByKeyResponse" name="parameters"/> </s0:message> <s0:portType name="Workforce_2_1_0PT"> <s0:operation name="getByKey"> <s0:input message="s3:getByKeyIn"/> <s0:output message="s3:getByKeyOut"/> </s0:operation> </s0:portType> <s0:binding name="Workforce_2_1_0SoapBinding" type="s3:Workforce_2_1_0PT"> <s4:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/> <wsp:Policy> <wsp:PolicyReference URI="#Mtom.xml"/> </wsp:Policy> <s0:operation name="getByKey"> <s4:operation soapAction="ld:Logical/Workforce_2_1_0_ws/getByKey" style="document"/> <s0:input> <s4:body use="literal"/> </s0:input> <s0:output> <s4:body use="literal"/> </s0:output> </s0:operation> </s0:binding> <s0:service name="Workforce_2_1_0SoapService"> <s0:port binding="s3:Workforce_2_1_0SoapBinding" name="Workforce_2_1_0SoapPort"> <s4:address location="http://server123.enterprise.com:31900/MyService/Services/Workforce_2-1-0"/> </s0:port> </s0:service> </s0:definitions> ``` Binding configuration: ``` <basicHttpBinding> <binding name="Workforce_2_1_0SoapBinding" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00" allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard" maxBufferSize="65536" maxBufferPoolSize="524288" maxReceivedMessageSize="65536" messageEncoding="Mtom" textEncoding="utf-8" transferMode="Buffered" useDefaultWebProxy="true"> <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384" maxBytesPerRead="4096" maxNameTableCharCount="16384" /> <security mode="TransportCredentialOnly"> <transport clientCredentialType="Basic" proxyCredentialType="None" realm="" /> <message clientCredentialType="UserName" algorithmSuite="Default" /> </security> </binding> </basicHttpBinding> ``` Endpoint: ``` <endpoint address="http://server123.enterprise.com:31900/MyService/Services/Workforce_2-1-0" binding="basicHttpBinding" bindingConfiguration="Workforce_2_1_0SoapBinding" contract="Workforce.Workforce_2_1_0PT" name="Workforce_2_1_0SoapPort" /> ``` Request (through Fiddler): ``` <s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/"> <s:Body xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <getByKey xmlns="ld:Logical/Workforce_2_1_0_ws"> <key>ABCDEFGH</key> </getByKey> </s:Body> </s:Envelope> ``` Response (through Fiddler): ``` <soapenv:Envelope xmlns:soapenv='http://schemas.xmlsoap.org/soap/envelope/'> <soapenv:Header></soapenv:Header> <soapenv:Body> <ns:getByKeyResponse xmlns:ns='ld:Logical/Workforce_2_1_0_ws'> <ns0:basicWorkforce xmlns:ns0="http://schemata.enterprise.biz/hr/2.1"> <ns0:key>ABCDEFGH</ns0:key> <ns0:name>JUAN PABLO MONTOYA</ns0:name> </ns0:basicWorkforce> </ns:getByKeyResponse> </soapenv:Body> </soapenv:Envelope> ``` Client code: ``` Workforce_2_1_0PTClient client = new Workforce_2_1_0PTClient(); client.ClientCredentials.UserName.UserName = "MyUsername"; client.ClientCredentials.UserName.Password = "MyPassword"; var result = client.getByKey("ABCDEFGH"); ``` EDIT: Including proxy code, generated by Visual Studio ``` [System.Diagnostics.DebuggerStepThroughAttribute()] [System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "4.0.0.0")] [System.ComponentModel.EditorBrowsableAttribute(System.ComponentModel.EditorBrowsableState.Advanced)] [System.ServiceModel.MessageContractAttribute(WrapperName="getByKey", WrapperNamespace="ld:Logical/Workforce_2_1_0_ws", IsWrapped=true)] public partial class getByKeyRequest { [System.ServiceModel.MessageBodyMemberAttribute(Namespace="ld:Logical/Workforce_2_1_0_ws", Order=0)] public string key; public getByKeyRequest() { } public getByKeyRequest(string key) { this.key = key; } } [System.Diagnostics.DebuggerStepThroughAttribute()] [System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "4.0.0.0")] [System.ComponentModel.EditorBrowsableAttribute(System.ComponentModel.EditorBrowsableState.Advanced)] [System.ServiceModel.MessageContractAttribute(WrapperName="getByKeyResponse", WrapperNamespace="ld:Logical/Workforce_2_1_0_ws", IsWrapped=true)] public partial class getByKeyResponse { [System.ServiceModel.MessageBodyMemberAttribute(Namespace="http://schemata.enterprise.biz/hr/2.1", Order=0)] [System.Xml.Serialization.XmlElementAttribute("basicWorkforce")] public basicWorkforce[] basicWorkforce; public getByKeyResponse() { } public getByKeyResponse(basicWorkforce[] basicWorkforce) { this.basicWorkforce = basicWorkforce; } } [System.CodeDom.Compiler.GeneratedCodeAttribute("System.Xml", "4.0.30319.225")] [System.SerializableAttribute()] [System.Diagnostics.DebuggerStepThroughAttribute()] [System.ComponentModel.DesignerCategoryAttribute("code")] [System.Xml.Serialization.XmlTypeAttribute(Namespace = "http://schemata.enterprise.biz/hr/2.1")] public partial class basicWorkforce : object, System.ComponentModel.INotifyPropertyChanged { private string keyField; private string nameField; [System.Xml.Serialization.XmlElementAttribute(Order=0)] public string key { get { return this.keyField; } set { this.keyField = value; this.RaisePropertyChanged("key"); } } [System.Xml.Serialization.XmlElementAttribute(Order=1)] public string name { get { return this.nameField; } set { this.nameField = value; this.RaisePropertyChanged("name"); } } } ``` Even if the response contains one `basicWorkforce` element, the `result` variable is an empty array of `basicWorkforce`. Sorry about the long post and thanks in advance for the help.