Gettinf Xml Serialization error when returning XMlDocument from WCF service - wcf

i have a WCF Service Method which returns XMlDocument i have added the attribut [XmlSerializerFormat]
on the method
Is there any way i can return XmlDocuemnt Object from WCf service

I could get the XmlDocument returned from my WCF Service in the following way.
My WCF service looks as shown below:
[ServiceContract]
[XmlSerializerFormat]
public interface ISampleService
{
[OperationContract]
Test GetXmlData();
}
[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Required)]
[ServiceBehavior(InstanceContextMode = InstanceContextMode.Single)]
public class SampleService : ISampleService
{
public string GetData()
{
return "Hello World";
}
public Test GetXmlData()
{
XmlDocument doc = new XmlDocument();
doc.Load(#"C:\SampleResponse.xml");
return new Test() {Doc = doc};
}
}
[Serializable]
public class Test
{
public XmlDocument Doc { get; set; }
}
The client adds a reference to the WCF Service and then calls the method GetXmlData() which returns a object Test which has the XmlDocuemnt within it.

Related

How do I overload method parameter using NET5 SoapCore

I'm trying to port an existing Soap WebService to .NET5 but am having issue with overloading a Soap method parameter.
In NET4 the code looks like this
namespace SoapWebServiceeTest.Soap
{
/// <summary>
/// Summary description for WsgSPServiceOrderService
/// </summary>
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line.
// [System.Web.Script.Services.ScriptService]
public class TextWebService : System.Web.Services.WebService
{
[WebMethod]
public string Test(
[XmlElement("object1", typeof(Object1))]
[XmlElement("object2", typeof(Object2))]
[XmlElement("object3", typeof(Object3))]
object request)
{
return $"{request.GetType().Name}";
}
}
public class Object1 { public string Param1 { get; set; } }
public class Object2 { public string Param2 { get; set; } }
public class Object3 { public string Param3 { get; set; } }
}
How do I achieve this in .NET5?
I have tried following but got reflection exception: System.Reflection.AmbiguousMatchException: 'Multiple custom attributes of the same type found.'
[ServiceContract]
public interface ITestWebService
{
[OperationContract]
string Test(
[XmlElement("object1", typeof(Object1))]
[XmlElement("object2", typeof(Object2))]
[XmlElement("object3", typeof(Object3))]
object request);
}
And also tried this but VS Add Connected Services errored with "More than one message named 'ISampleService_Test_InputMessage' was specified. Each message must have a unique name."
[OperationContract]
string Test(Object1 request);
[OperationContract]
string Test(Object2 request);
Any help would be awesome
You may try this
You can make it post or get based on your need
[OperationContract]
[WebInvoke(UriTemplate = "Test1", Method = "POST"]
string Test(Object1 request);
and
[OperationContract]
[WebInvoke(UriTemplate = "Test2", Method = "POST"]
string Test(Object2 request);
This way you can achieve objective

ServiceReference not found when return a DataContract from a OperationContract?

It is a simple class, I reference it in silverlight project in the same solution. if the operation method returns an integer, it works fine, but if I make it return a DataContract, it just says the servicereference cannot find
In web project
public class UserResult
{
....
}
[ServiceContract(Namespace = "")]
[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
public class ServiceUser
{
[OperationContract]
public UserResult UserSignIn(string userid, string password)
{
...
} /// doesn't work
public int UserSignIn(string userid, string password)
{
...
} // works
In SilverLight
ServiceReferenceUser.ServiceUserClient srUser =
new ServiceReferenceUser.ServiceUserClient();
Perhaps the UserResult class references some other DataContract. If so, that DataContract needs to be specified as a known type.

WCF Client error in creating a proxy for a WCF service

I have WCF service which accepts a xmldocument and returns a xml document, Below is the interface code
namespace CreateLabelWS
{
[ServiceContract(Namespace = "http://localhost/Create")]
public interface ICreateLabel
{
[OperationContract,XmlSerializerFormat]
[FaultContract(typeof(CustomException))]
XmlDocument CreateLabelRequestIntoDB(XmlDocument Request);
}
[DataContract(Namespace="")]
public class CustomException
{
[DataMember()]
public string Title;
[DataMember()]
public string ExceptionMessage;
[DataMember()]
public string InnerException;
[DataMember()]
public string StackTrace;
[DataMember()]
public int RowsInserted;
}
}
But when I create a proxy for this and try to access CreateLabelRequestIntoDB from the client application, I found that to be exposed as Xelement type rather than XMLDocument. Could anybody help me here and also tell me if there's any error in my code
Dins

Self-host (No IIS or WAS) WCF with a service that requires parameters

Hopefully this is an easy one. I'm wondering if this is possible - perhaps it is not. I'm attempting to self-host a WCF service (in my example below it is a console application). The service does not have a default constructor. It only contains a single parameter signature constructor. I need the service to be able to handle user sessions. Currently I am using Ninject DI. Here is a simple code solution I came up with to demonstrate my issue:
using System;
using System.ServiceModel;
using System.ServiceModel.Web;
using Ninject.Modules;
namespace ConsoleApplication1
{
public class Program
{
static void Main()
{
using (var webServiceHost = new WebServiceHost(typeof(MyWcf)))
{
var webHttpBinding = new WebHttpBinding();
var uri = new Uri("http://localhost:8000/");
webServiceHost.AddServiceEndpoint(typeof(IMyWcf), webHttpBinding, uri);
webServiceHost.Open();
Console.WriteLine("Service is ready...");
Console.ReadKey();
}
}
}
[ServiceContract]
public interface IMyWcf
{
[OperationContract, WebGet(UriTemplate = "")]
string HelloWorld();
}
[ServiceBehavior(InstanceContextMode = InstanceContextMode.PerSession)]
public class MyWcf : IMyWcf
{
private readonly IMessage _customMessage = new Message("Default Message.");
public MyWcf(IMessage message)
{
_customMessage = message;
}
public string HelloWorld()
{
return _customMessage.Text;
}
}
public interface IMessage
{
string Text { get; }
}
public class Message : IMessage
{
public Message (string message)
{
Text = message;
}
public string Text { get; set; }
}
public class NinjectSetup : NinjectModule
{
public override void Load()
{
Bind<IMessage>().To<Message>()
.WithConstructorArgument("message", "Injected String Message.");
}
}
}
Obviously commenting out the parameterized constructor allows the service to run. But that does me no good. I don't want to use ServiceHostFactory because that apparently requires me to have a .svc/IIS. Is there a way around this? Can I just create a new MyWebServiceHost that inherits from WebServiceHost and override some method that will create a instance for the service?
Using Ruben's suggestion (in the comments) above, I was able to locate a working example within the Ninject.Extensions.Wcf source repository.

Importing ASMX Web Service metadata to WCF Endpoint

I am interested in impersonating well-known Web Services and Wcf Services for integration test purposes. To this end, I would like to capture service metadata, auto-generate service stubs, and host service stubs in a self-hosted environment.
Following this article here, I am able to obtain remote Wcf Service metadata and generate contracts. However, I am having some difficulty doing the same for remote Asmx Web Services.
I have a set of mickey-mouse solutions for vetting this out.
My Asmx solution contains a default "Hello World" web service, found below
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
public class SimpleAsmxService : System.Web.Services.WebService
{
[WebMethod]
public string HelloWorld () { return "Hello World"; }
}
My Wcf solution contains a default "Hello World" service, also found below
[ServiceContract]
public interface ISimpleWcfService
{
[OperationContract]
string GetData(int value);
[OperationContract]
CompositeType GetDataUsingDataContract(CompositeType composite);
}
[DataContract]
public class CompositeType
{
[DataMember]
public bool BoolValue { get; set; }
[DataMember]
public string StringValue { get; set; }
}
public class SimpleWcfService : ISimpleWcfService
{
public string GetData(int value)
{
return string.Format("You entered: {0}", value);
}
public CompositeType GetDataUsingDataContract(CompositeType composite)
{
if (composite.BoolValue)
{
composite.StringValue += "Suffix";
}
return composite;
}
}
Finally, the little console-that-could looks like
class Program
{
public const string UrlWcf =
"http://localhost:8731/Design_Time_Addresses/SimpleWcfService/mex";
public const string UrlAsmx =
"http://localhost:1803/SimpleAsmxService.asmx?WSDL";
static void Main(string[] args)
{
EndpointAddress mexAddress = new EndpointAddress (UrlWcf);
MetadataExchangeClient mexClient =
new MetadataExchangeClient (mexAddress);
mexClient.ResolveMetadataReferences = true;
// NOTE: blows up if we use UrlAsmx
MetadataSet metaSet = mexClient.GetMetadata ();
WsdlImporter importer = new WsdlImporter (metaSet);
Collection<ContractDescription> contracts =
importer.ImportAllContracts();
}
}
It seems to me that I should be able to pull Wsdl from a well-known Asmx Web Service and generate contracts [and from contracts to code], but cannot seem to contort the preceding sample to do so. Any help would be much appreciated,
Thanks!
NOTE: the error generated when invoking MetadataSet metaSet = mexClient.GetMetadata(); above is a System.InvalidOperationException with message of
Metadata contains a reference that cannot be resolved : 'http://localhost:1803/SimpleAsmxService.asmx?WSDL'
With a System.InvalidOperationException inner exception with message of
<?xml version="1.0" encoding="utf-16"?>
<Fault xmlns="http://www.w3.org/2003/05/soap-envelope">
<Code>
<Value>Sender</Value>
</Code>
<Reason>
<Text xml:lang="en">
System.Web.Services.Protocols.SoapException: Unable to handle request without a valid action parameter. Please supply a valid soap action.
at System.Web.Services.Protocols.Soap12ServerProtocolHelper.RouteRequest()
at System.Web.Services.Protocols.SoapServerProtocol.RouteRequest(SoapServerMessage message)
at System.Web.Services.Protocols.SoapServerProtocol.Initialize()
at System.Web.Services.Protocols.ServerProtocol.SetContext(Type type, HttpContext context, HttpRequest request, HttpResponse response)
at System.Web.Services.Protocols.ServerProtocolFactory.Create(Type type, HttpContext context, HttpRequest request, HttpResponse response, Boolean& abortProcessing)
</Text>
</Reason>
</Fault>
The way to get it to work with an ASMX web service is to specify the MetadataExchangeClientMode
...
MetadataExchangeClient mexClient =
new MetadataExchangeClient (new Uri(), MetadataExchangeClientMode.HttpGet);
...
using MetadataExchangeClientMode.HttpGet for your ASMX services
and MetadataExchangeClientMode.MetadataExchange for your WCF services.