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Type serialization issues for .NET WCF service: WSDL service defines empty types in XSD

I am writing a web service using WCF.

  • I created data contracts.

  • I created my service contract (interface). I defined methods (the parameters of which are typed as for data contracts).

  • I fulfilled the service contract by creating a service class.

  • I hosted my service using the svc file and IIS.

  • I tried my service, looked for http: //localhost/myvirtdiriis/myservice.svc → The service was downloaded, and a good web page describing the availability of my service showed.

  • I wanted to see the WSDL. Using the provided link, I see that types are defined only, I see only the definition of types (for example <complexType>), but nothing inside (types are empty).

  • I encoded a simple client, the operation call went well, but when it returns the type it is empty (internal fields have construction values, and my service places some values ​​there), for example, a call to an operation that returns a type that has three lines specified by the operation contract method, for "Hello", "Hello2" and "Hello3", returns the type for which these strings are set to ""(construction values, as if no changes had occurred).

What happened?

There seems to be a serialization failure.

I provide:

A1) Part of the service contract:

[ServiceContract(Namespace = "http://opcfoundation.org/webservices/XMLDA/1.0/")]
   public interface IOCXSService {
      [OperationContract(Action = "http://opcfoundation.org/webservices/XMLDA/1.0/Browse")]
      BrowseResponse Browse(BrowseRequest request);
      ...
}

A2) Service implementation:

public class MyService : IOCXSService {
      ...
      public BrowseResponse Browse(BrowseRequest request) {
         ...
      }
      ...
   }

B) Types:

[DataContract(Namespace = "http://opcfoundation.org/webservices/XMLDA/1.0/", Name = "BrowseResponse")]
    [System.ServiceModel.MessageContractAttribute(WrapperName = "BrowseResponse", WrapperNamespace = "http://opcfoundation.org/webservices/XMLDA/1.0/", IsWrapped = true)]
    public class BrowseResponse {

        [DataMember(Name = "BrowseResult", Order = 0)]
        public OCXS.OCXSServiceLibrary.OPCXMLDA10.ReplyBase BrowseResult;

        [DataMember(Name = "Elements", Order = 1)]
        public BrowseElement[] Elements;

        [DataMember(Name = "Errors", Order = 2)]
        public OPCError[] Errors;

        [DataMember(Name = "ContinuationPoint", Order = 3)]
        public string ContinuationPoint;

        [DataMember(Name = "MoreElements", Order = 4)]
        public bool MoreElements;

        public BrowseResponse() {
        }

        public BrowseResponse(OCXS.OCXSServiceLibrary.OPCXMLDA10.ReplyBase BrowseResult, BrowseElement[] Elements, OPCError[] Errors, string ContinuationPoint, bool MoreElements) {
            this.BrowseResult = BrowseResult;
            this.Elements = Elements;
            this.Errors = Errors;
            this.ContinuationPoint = ContinuationPoint;
            this.MoreElements = MoreElements;
        }

[DataContract(Namespace = "http://opcfoundation.org/webservices/XMLDA/1.0/", Name = "ReplyBase")]
    public class ReplyBase : System.ComponentModel.INotifyPropertyChanged {

        private System.DateTime rcvTimeField;

        private System.DateTime replyTimeField;

        private string clientRequestHandleField;

        private string revisedLocaleIDField;

        private serverState serverStateField;

        [DataMember(Name = "RcvTime", Order = 0)]
        public System.DateTime RcvTime {
            get {
                return this.rcvTimeField;
            }
            set {
                this.rcvTimeField = value;
                this.RaisePropertyChanged("RcvTime");
            }
        }

        [DataMember(Name = "ReplyTime", Order = 1)]
        public System.DateTime ReplyTime {
            get {
                return this.replyTimeField;
            }
            set {
                this.replyTimeField = value;
                this.RaisePropertyChanged("ReplyTime");
            }
        }

        [DataMember(Name = "ClientRequestHandle", Order = 2)]
        public string ClientRequestHandle {
            get {
                return this.clientRequestHandleField;
            }
            set {
                this.clientRequestHandleField = value;
                this.RaisePropertyChanged("ClientRequestHandle");
            }
        }

        [DataMember(Name = "RevisedLocaleID", Order = 3)]
        public string RevisedLocaleID {
            get {
                return this.revisedLocaleIDField;
            }
            set {
                this.revisedLocaleIDField = value;
                this.RaisePropertyChanged("RevisedLocaleID");
            }
        }

        [DataMember(Name = "ServerState", Order = 4)]
        public serverState ServerState {
            get {
                return this.serverStateField;
            }
            set {
                this.serverStateField = value;
                this.RaisePropertyChanged("ServerState");
            }
        }

        public event System.ComponentModel.PropertyChangedEventHandler PropertyChanged;

        protected void RaisePropertyChanged(string propertyName) {
            System.ComponentModel.PropertyChangedEventHandler propertyChanged = this.PropertyChanged;
            if ((propertyChanged != null)) {
                propertyChanged(this, new System.ComponentModel.PropertyChangedEventArgs(propertyName));
            }
        }
    }

[DataContract(Namespace = "http://opcfoundation.org/webservices/XMLDA/1.0/", Name = "BrowseElement")]
    public class BrowseElement : INotifyPropertyChanged {

        private ItemProperty[] propertiesField;

        private string nameField;

        private string itemPathField;

        private string itemNameField;

        private bool isItemField;

        private bool hasChildrenField;

        [DataMember(Name = "Properties", Order = 0)]
        public ItemProperty[] Properties {
            get {
                return this.propertiesField;
            }
            set {
                this.propertiesField = value;
                this.RaisePropertyChanged("Properties");
            }
        }

        [DataMember(Name = "Name", Order = 1)]
        public string Name {
            get {
                return this.nameField;
            }
            set {
                this.nameField = value;
                this.RaisePropertyChanged("Name");
            }
        }

        [DataMember(Name = "ItemPath", Order = 2)]
        public string ItemPath {
            get {
                return this.itemPathField;
            }
            set {
                this.itemPathField = value;
                this.RaisePropertyChanged("ItemPath");
            }
        }

        [DataMember(Name = "ItemName", Order = 3)]
        public string ItemName {
            get {
                return this.itemNameField;
            }
            set {
                this.itemNameField = value;
                this.RaisePropertyChanged("ItemName");
            }
        }

        [DataMember(Name = "IsItem", Order = 4)]
        public bool IsItem {
            get {
                return this.isItemField;
            }
            set {
                this.isItemField = value;
                this.RaisePropertyChanged("IsItem");
            }
        }

        [DataMember(Name = "HasChildren", Order = 5)]
        public bool HasChildren {
            get {
                return this.hasChildrenField;
            }
            set {
                this.hasChildrenField = value;
                this.RaisePropertyChanged("HasChildren");
            }
        }

        public event System.ComponentModel.PropertyChangedEventHandler PropertyChanged;

        protected void RaisePropertyChanged(string propertyName) {
            System.ComponentModel.PropertyChangedEventHandler propertyChanged = this.PropertyChanged;
            if ((propertyChanged != null)) {
                propertyChanged(this, new System.ComponentModel.PropertyChangedEventArgs(propertyName));
            }
        }

    }

[DataContract(Namespace = "http://opcfoundation.org/webservices/XMLDA/1.0/", Name = "OPCError")]
    public class OPCError : System.ComponentModel.INotifyPropertyChanged {

        private string textField;

        private System.Xml.XmlQualifiedName idField;

        [DataMember(Name = "Text", Order = 0)]
        public string Text {
            get {
                return this.textField;
            }
            set {
                this.textField = value;
                this.RaisePropertyChanged("Text");
            }
        }

        [DataMember(Name = "ID", Order = 1)]
        public System.Xml.XmlQualifiedName ID {
            get {
                return this.idField;
            }
            set {
                this.idField = value;
                this.RaisePropertyChanged("ID");
            }
        }

        public event System.ComponentModel.PropertyChangedEventHandler PropertyChanged;

        protected void RaisePropertyChanged(string propertyName) {
            System.ComponentModel.PropertyChangedEventHandler propertyChanged = this.PropertyChanged;
            if ((propertyChanged != null)) {
                propertyChanged(this, new System.ComponentModel.PropertyChangedEventArgs(propertyName));
            }
        }
    }

C) WSDL (part related to type definitions)

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:tns="http://opcfoundation.org/webservices/XMLDA/1.0/" targetNamespace="http://opcfoundation.org/webservices/XMLDA/1.0/" xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
<xs:element name="Browse">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="BrowseResponse">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="GetProperties">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="GetPropertiesResponse">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="GetStatus">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="GetStatusResponse">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="Read">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="ReadResponse">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="Subscribe">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="SubscribeResponse">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="SubscriptionCancel">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="SubscriptionCancelResponse">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="SubscriptionPolledRefresh">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="SubscriptionPolledRefreshResponse">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="Write">-<xs:complexType><xs:sequence/></xs:complexType></xs:element>
      <xs:element name="WriteResponse">
         <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
</xs:schema>

The above part is given here:

<?xml version="1.0" encoding="UTF-8"?>
<wsdl:definitions xmlns:wsam="http://www.w3.org/2007/05/addressing/metadata" xmlns:wsx="http://schemas.xmlsoap.org/ws/2004/09/mex" xmlns:wsa10="http://www.w3.org/2005/08/addressing" xmlns:msc="http://schemas.microsoft.com/ws/2005/12/wsdl/contract" xmlns:wsaw="http://www.w3.org/2006/05/addressing/wsdl" xmlns:wsap="http://schemas.xmlsoap.org/ws/2004/08/addressing/policy" xmlns:wsp="http://schemas.xmlsoap.org/ws/2004/09/policy" xmlns:wsa="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:tns="http://opcfoundation.org/webservices/XMLDA/1.0/" xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" targetNamespace="http://opcfoundation.org/webservices/XMLDA/1.0/">
<wsdl:types>
<xsd:schema targetNamespace="http://opcfoundation.org/webservices/XMLDA/1.0/Imports">
<xsd:import namespace="http://opcfoundation.org/webservices/XMLDA/1.0/" schemaLocation="http://localhost/OCXS/OCXS.svc?xsd=xsd0"/></xsd:schema></wsdl:types>
<wsdl:message name="BrowseRequest"><wsdl:part name="parameters" element="tns:Browse"/></wsdl:message>
<wsdl:message name="BrowseResponse"><wsdl:part name="parameters" element="tns:BrowseResponse"/></wsdl:message>
<wsdl:message name="GetPropertiesRequest"><wsdl:part name="parameters" element="tns:GetProperties"/></wsdl:message>
<wsdl:message name="GetPropertiesResponse"><wsdl:part name="parameters" element="tns:GetPropertiesResponse"/></wsdl:message>
<wsdl:message name="GetStatusRequest"><wsdl:part name="parameters" element="tns:GetStatus"/></wsdl:message>
<wsdl:message name="GetStatusResponse"><wsdl:part name="parameters" element="tns:GetStatusResponse"/></wsdl:message>
<wsdl:message name="ReadRequest"><wsdl:part name="parameters" element="tns:Read"/></wsdl:message>-<wsdl:message name="ReadResponse"><wsdl:part name="parameters" element="tns:ReadResponse"/></wsdl:message>
<wsdl:message name="SubscribeRequest"><wsdl:part name="parameters" element="tns:Subscribe"/></wsdl:message>
<wsdl:message name="SubscribeResponse"><wsdl:part name="parameters" element="tns:SubscribeResponse"/></wsdl:message>
<wsdl:message name="SubscriptionCancelRequest"><wsdl:part name="parameters" element="tns:SubscriptionCancel"/></wsdl:message><wsdl:message name="SubscriptionCancelResponse"><wsdl:part name="parameters" element="tns:SubscriptionCancelResponse"/></wsdl:message>
<wsdl:message name="SubscriptionPolledRefreshRequest"><wsdl:part name="parameters" element="tns:SubscriptionPolledRefresh"/></wsdl:message>
<wsdl:message name="SubscriptionPolledRefreshResponse"><wsdl:part name="parameters" element="tns:SubscriptionPolledRefreshResponse"/></wsdl:message>
<wsdl:message name="WriteRequest"><wsdl:part name="parameters" element="tns:Write"/></wsdl:message>-<wsdl:message name="WriteResponse"><wsdl:part name="parameters" element="tns:WriteResponse"/></wsdl:message>
<wsdl:portType name="IOCXSService">-<wsdl:operation name="Browse"><wsdl:input name="BrowseRequest" message="tns:BrowseRequest" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/Browse"/><wsdl:output name="BrowseResponse" message="tns:BrowseResponse" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/IOCXSService/BrowseResponse"/></wsdl:operation>
<wsdl:operation name="GetProperties"><wsdl:input name="GetPropertiesRequest" message="tns:GetPropertiesRequest" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/GetProperties"/><wsdl:output name="GetPropertiesResponse" message="tns:GetPropertiesResponse" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/IOCXSService/GetPropertiesResponse"/></wsdl:operation>
<wsdl:operation name="GetStatus"><wsdl:input name="GetStatusRequest" message="tns:GetStatusRequest" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/GetStatus"/><wsdl:output name="GetStatusResponse" message="tns:GetStatusResponse" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/IOCXSService/GetStatusResponse"/></wsdl:operation>
<wsdl:operation name="Read"><wsdl:input name="ReadRequest" message="tns:ReadRequest" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/Read"/><wsdl:output name="ReadResponse" message="tns:ReadResponse" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/IOCXSService/ReadResponse"/></wsdl:operation>-<wsdl:operation name="Subscribe"><wsdl:input name="SubscribeRequest" message="tns:SubscribeRequest" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/Subscribe"/><wsdl:output name="SubscribeResponse" message="tns:SubscribeResponse" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/IOCXSService/SubscribeResponse"/></wsdl:operation>
<wsdl:operation name="SubscriptionCancel"><wsdl:input name="SubscriptionCancelRequest" message="tns:SubscriptionCancelRequest" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/SubscriptionCancel"/><wsdl:output name="SubscriptionCancelResponse" message="tns:SubscriptionCancelResponse" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/IOCXSService/SubscriptionCancelResponse"/></wsdl:operation>
<wsdl:operation name="SubscriptionPolledRefresh"><wsdl:input name="SubscriptionPolledRefreshRequest" message="tns:SubscriptionPolledRefreshRequest" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/SubscriptionPolledRefresh"/><wsdl:output name="SubscriptionPolledRefreshResponse" message="tns:SubscriptionPolledRefreshResponse" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/IOCXSService/SubscriptionPolledRefreshResponse"/></wsdl:operation>
<wsdl:operation name="Write"><wsdl:input name="WriteRequest" message="tns:WriteRequest" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/Write"/><wsdl:output name="WriteResponse" message="tns:WriteResponse" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/IOCXSService/WriteResponse"/></wsdl:operation></wsdl:portType></wsdl:definitions>

: MessageContract BrowseResponse BrowseRequest ( , ), . , messagecontracts???

, , ... DataContract (s) ServiceContract (s) ( MessageContract (s)), . , wsdl , t ( MessageContract (s)). ( ):

, : http://opcfoundation.org/webservices/XMLDA/1.0/ - , , WSDL ( ). svc WSDL BECAUSE, , , !!!

?

+5
2

BrowseResponse [MessageContract], [DataContract]. , , , [MessageContract] ( - [MC] SOAP , , . [MessageHeader] [MessageBodyMember], , .

BrowseRequest, [MC] , [MC] , , .

+4

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.NET 2.0, .NET 4 WCF. #, . WebReference , , , . , Serializer XmlSerializerFormat, XML-, WCF DataContractSerializer.

MSDN https://msdn.microsoft.com/en-us/library/ms733901(v=vs.110).aspx

. , WCF, Webservices.

<ServiceContract()>
<XmlSerializerFormat()>
Public Interface IService    
    <OperationContract()>
    <WebMethod()>
    Function CreateLoan(ByVal LoanRequest As LoanAccount) As String
End Interface

//C# Class
public class LoanAccount
{
    [XmlElement]
    public string New { get; set; }

    [XmlElement]
    public String CustomerNo { get; set; }

    [XmlElement]
    public string AcctType { get; set; }
}
0

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