WCF Exception: Type 'MyType' with Data Contract Name 'Some Name' is not Expected

Prev: dotnet35sp1
Next: WCF Exception: Type 'MyType' with Data Contract Name 'Some Name'is not Expected

From: Charles on 25 Feb 2010 07:37

---

I am trying to modify a MSDN WCF sample, and am getting this error in my
client app.

"There was an error while trying to serialize parameter
http://Microsoft.ServiceModel.Samples:obj. The InnerException message was
'Type 'Client.Form1' with data contract name
'Form1:http://schemas.datacontract.org/2004/07/Client' is not expected. Add
any types not known statically to the list of known types - for example, by
using the KnownTypeAttribute attribute or by adding them to the list of
known types passed to DataContractSerializer.'. Please see InnerException
for more details."

The WCF project is hosted by a Windows service, and this builds and starts
up successfully.

The sample is the Calculator sample, which works fine except for my
addition. The purpose of the addition is to allow a client to register
itself with the service so that it can receive notifications whilst it is
alive. The service defines the INotify interface, which is implemented by
the client. The client tries to register itself with the service by sending
a reference to itself in the Register call, but this is where I get the
exception.

I have Googled the exception, but none of the answers I have found address
the particular thing I am trying to do, so they don't really make sense in
my context.

I'm not sure how much code to post, but here is the bulk of the Windows
service

<code>
[ServiceContract(Namespace = "http://Microsoft.ServiceModel.Samples")]
public interface ICalculator
{
[OperationContract]
double Add(double n1, double n2);
[OperationContract]
double Subtract(double n1, double n2);
[OperationContract]
void Register(INotify notifiable);
}

[ServiceContract(Namespace = "http://Microsoft.ServiceModel.Samples")]
[DataContractFormat()]
public interface INotify
{
void Notify(string s);
}

// Implement the ICalculator service contract in a service class.
public class CalculatorService : ICalculator
{
private INotify m_Notifiable;

// Implement the ICalculator methods.
public double Add(double n1, double n2)
{
double result = n1 + n2;

m_Notifiable.Notify("Done adding");

return result;
}

public double Subtract(double n1, double n2)
{
double result = n1 - n2;

m_Notifiable.Notify("Done subtracting");

return result;
}

public void Register(INotify notifiable)
{
// Save for notifications
m_Notifiable = notifiable;
}
}
</code>

Here is the client:

<code>
Public Class Form1

Implements Microsoft.ServiceModel.Samples.INotify

Private Client As CalculatorClient

Private Sub ConnectButton_Click(ByVal sender As System.Object, ByVal e
As System.EventArgs) Handles ConnectButton.Click

' Step 1: Create an endpoint address and an instance of the WCF
Client.
Dim epAddress As New
EndpointAddress("http://localhost:8000/ServiceModelSamples/Service")

Client = New CalculatorClient(New WSHttpBinding(), epAddress)

'Step 2: Call the service operations.
''m_Notifiable = New Notifiable

Client.Register(Me)

ConnectButton.Enabled = False
DisconnectButton.Enabled = True

End Sub

Private Sub DisconnectButton_Click(ByVal sender As System.Object, ByVal
e As System.EventArgs) Handles DisconnectButton.Click

' Step 3: Closing the client gracefully closes the connection and
cleans up resources.
Client.Close()

ConnectButton.Enabled = True
DisconnectButton.Enabled = False

End Sub

Public Sub Notify(ByVal s As String) Implements
Microsoft.ServiceModel.Samples.INotify.Notify

Label1.Text = s

End Sub
End Class
</code>

The exception is thrown on the line

Client.Register(Me)

Can anyone suggest a solution?

TIA

Charles

From: sloan on 25 Feb 2010 08:49

---

Read this:
Shared Types vs Shared Contracts

http://blogs.msdn.com/sowmy/archive/2006/06/06/all-about-knowntypes.aspx



And this:

http://social.msdn.microsoft.com/Forums/en-US/wcf/thread/6b70e9f4-52bc-4fa9-a0ff-c0859e041e85?prof=required



and send me a paypal payment, because that took weeks of my time to figure
that stuff out !!



"Charles" <blank(a)nowhere.com> wrote in message
news:%23U6nLdhtKHA.2072(a)TK2MSFTNGP02.phx.gbl...
>I am trying to modify a MSDN WCF sample, and am getting this error in my
>client app.
>
> "There was an error while trying to serialize parameter
> http://Microsoft.ServiceModel.Samples:obj. The InnerException message was
> 'Type 'Client.Form1' with data contract name
> 'Form1:http://schemas.datacontract.org/2004/07/Client' is not expected.
> Add any types not known statically to the list of known types - for
> example, by using the KnownTypeAttribute attribute or by adding them to
> the list of known types passed to DataContractSerializer.'. Please see
> InnerException for more details."
>
> The WCF project is hosted by a Windows service, and this builds and starts
> up successfully.
>
> The sample is the Calculator sample, which works fine except for my
> addition. The purpose of the addition is to allow a client to register
> itself with the service so that it can receive notifications whilst it is
> alive. The service defines the INotify interface, which is implemented by
> the client. The client tries to register itself with the service by
> sending a reference to itself in the Register call, but this is where I
> get the exception.
>
> I have Googled the exception, but none of the answers I have found address
> the particular thing I am trying to do, so they don't really make sense in
> my context.
>
> I'm not sure how much code to post, but here is the bulk of the Windows
> service
>
> <code>
> [ServiceContract(Namespace = "http://Microsoft.ServiceModel.Samples")]
> public interface ICalculator
> {
> [OperationContract]
> double Add(double n1, double n2);
> [OperationContract]
> double Subtract(double n1, double n2);
> [OperationContract]
> void Register(INotify notifiable);
> }
>
> [ServiceContract(Namespace = "http://Microsoft.ServiceModel.Samples")]
> [DataContractFormat()]
> public interface INotify
> {
> void Notify(string s);
> }
>
> // Implement the ICalculator service contract in a service class.
> public class CalculatorService : ICalculator
> {
> private INotify m_Notifiable;
>
> // Implement the ICalculator methods.
> public double Add(double n1, double n2)
> {
> double result = n1 + n2;
>
> m_Notifiable.Notify("Done adding");
>
> return result;
> }
>
> public double Subtract(double n1, double n2)
> {
> double result = n1 - n2;
>
> m_Notifiable.Notify("Done subtracting");
>
> return result;
> }
>
> public void Register(INotify notifiable)
> {
> // Save for notifications
> m_Notifiable = notifiable;
> }
> }
> </code>
>
> Here is the client:
>
> <code>
> Public Class Form1
>
> Implements Microsoft.ServiceModel.Samples.INotify
>
> Private Client As CalculatorClient
>
> Private Sub ConnectButton_Click(ByVal sender As System.Object, ByVal e
> As System.EventArgs) Handles ConnectButton.Click
>
> ' Step 1: Create an endpoint address and an instance of the WCF
> Client.
> Dim epAddress As New
> EndpointAddress("http://localhost:8000/ServiceModelSamples/Service")
>
> Client = New CalculatorClient(New WSHttpBinding(), epAddress)
>
> 'Step 2: Call the service operations.
> ''m_Notifiable = New Notifiable
>
> Client.Register(Me)
>
> ConnectButton.Enabled = False
> DisconnectButton.Enabled = True
>
> End Sub
>
> Private Sub DisconnectButton_Click(ByVal sender As System.Object, ByVal
> e As System.EventArgs) Handles DisconnectButton.Click
>
> ' Step 3: Closing the client gracefully closes the connection and
> cleans up resources.
> Client.Close()
>
> ConnectButton.Enabled = True
> DisconnectButton.Enabled = False
>
> End Sub
>
> Public Sub Notify(ByVal s As String) Implements
> Microsoft.ServiceModel.Samples.INotify.Notify
>
> Label1.Text = s
>
> End Sub
> End Class
> </code>
>
> The exception is thrown on the line
>
> Client.Register(Me)
>
> Can anyone suggest a solution?
>
> TIA
>
> Charles
>
>

From: sloan on 25 Feb 2010 08:59

---

PS
Since I just went through this:

[OperationContract]
void Register(INotify notifiable);


The above is where I would start:


From the second url I showed you:

[OperationContract]
[ServiceKnownType(typeof(EmployeeConcrete))]
void AddPerson(IPerson);


What the post says is that you cannot put these into the .config file like
you can KnownType.

So you can either "hard wire" up the Concrete (as seen above with the
EmployeeConcrete)..........

or use the "types.txt" solution in the second post.

.................

Below is how you can wire up KnownType via config. (seen in the first url I
gave you).
You ~~cannot~~ do the same with ServiceKnownType (unless you use the
workaround via the second url I showed you).........<< and this is the magic
nugget of information that will save you hours of trial and error and
googling.

<system.runtime.serialization>

<dataContractSerializer>

<declaredTypes>

<add type="MyCompany.Library.Shape`1,

MyAssembly, Version=2.0.0.0, Culture=neutral,

PublicKeyToken=XXXXXX, processorArchitecture=MSIL">

<knownType type="MyCompany.Library.Circle`1,

MyAssembly, Version=2.0.0.0, Culture=neutral,

PublicKeyToken=XXXXXX, processorArchitecture=MSIL">

<parameter index="0"/>

</knownType>

</add>

</declaredTypes>

</dataContractSerializer>

</system.runtime.serialization>



"sloan" <sloan(a)ipass.net> wrote in message
news:eXM9sFitKHA.3904(a)TK2MSFTNGP02.phx.gbl...
>
> Read this:
> Shared Types vs Shared Contracts
>
> http://blogs.msdn.com/sowmy/archive/2006/06/06/all-about-knowntypes.aspx
>
>
>
> And this:
>
> http://social.msdn.microsoft.com/Forums/en-US/wcf/thread/6b70e9f4-52bc-4fa9-a0ff-c0859e041e85?prof=required
>
>
>
> and send me a paypal payment, because that took weeks of my time to figure
> that stuff out !!
>
>
>
> "Charles" <blank(a)nowhere.com> wrote in message
> news:%23U6nLdhtKHA.2072(a)TK2MSFTNGP02.phx.gbl...
>>I am trying to modify a MSDN WCF sample, and am getting this error in my
>>client app.
>>
>> "There was an error while trying to serialize parameter
>> http://Microsoft.ServiceModel.Samples:obj. The InnerException message was
>> 'Type 'Client.Form1' with data contract name
>> 'Form1:http://schemas.datacontract.org/2004/07/Client' is not expected.
>> Add any types not known statically to the list of known types - for
>> example, by using the KnownTypeAttribute attribute or by adding them to
>> the list of known types passed to DataContractSerializer.'. Please see
>> InnerException for more details."
>>
>> The WCF project is hosted by a Windows service, and this builds and
>> starts up successfully.
>>
>> The sample is the Calculator sample, which works fine except for my
>> addition. The purpose of the addition is to allow a client to register
>> itself with the service so that it can receive notifications whilst it is
>> alive. The service defines the INotify interface, which is implemented by
>> the client. The client tries to register itself with the service by
>> sending a reference to itself in the Register call, but this is where I
>> get the exception.
>>
>> I have Googled the exception, but none of the answers I have found
>> address the particular thing I am trying to do, so they don't really make
>> sense in my context.
>>
>> I'm not sure how much code to post, but here is the bulk of the Windows
>> service
>>
>> <code>
>> [ServiceContract(Namespace = "http://Microsoft.ServiceModel.Samples")]
>> public interface ICalculator
>> {
>> [OperationContract]
>> double Add(double n1, double n2);
>> [OperationContract]
>> double Subtract(double n1, double n2);
>> [OperationContract]
>> void Register(INotify notifiable);
>> }
>>
>> [ServiceContract(Namespace = "http://Microsoft.ServiceModel.Samples")]
>> [DataContractFormat()]
>> public interface INotify
>> {
>> void Notify(string s);
>> }
>>
>> // Implement the ICalculator service contract in a service class.
>> public class CalculatorService : ICalculator
>> {
>> private INotify m_Notifiable;
>>
>> // Implement the ICalculator methods.
>> public double Add(double n1, double n2)
>> {
>> double result = n1 + n2;
>>
>> m_Notifiable.Notify("Done adding");
>>
>> return result;
>> }
>>
>> public double Subtract(double n1, double n2)
>> {
>> double result = n1 - n2;
>>
>> m_Notifiable.Notify("Done subtracting");
>>
>> return result;
>> }
>>
>> public void Register(INotify notifiable)
>> {
>> // Save for notifications
>> m_Notifiable = notifiable;
>> }
>> }
>> </code>
>>
>> Here is the client:
>>
>> <code>
>> Public Class Form1
>>
>> Implements Microsoft.ServiceModel.Samples.INotify
>>
>> Private Client As CalculatorClient
>>
>> Private Sub ConnectButton_Click(ByVal sender As System.Object, ByVal e
>> As System.EventArgs) Handles ConnectButton.Click
>>
>> ' Step 1: Create an endpoint address and an instance of the WCF
>> Client.
>> Dim epAddress As New
>> EndpointAddress("http://localhost:8000/ServiceModelSamples/Service")
>>
>> Client = New CalculatorClient(New WSHttpBinding(), epAddress)
>>
>> 'Step 2: Call the service operations.
>> ''m_Notifiable = New Notifiable
>>
>> Client.Register(Me)
>>
>> ConnectButton.Enabled = False
>> DisconnectButton.Enabled = True
>>
>> End Sub
>>
>> Private Sub DisconnectButton_Click(ByVal sender As System.Object,
>> ByVal e As System.EventArgs) Handles DisconnectButton.Click
>>
>> ' Step 3: Closing the client gracefully closes the connection and
>> cleans up resources.
>> Client.Close()
>>
>> ConnectButton.Enabled = True
>> DisconnectButton.Enabled = False
>>
>> End Sub
>>
>> Public Sub Notify(ByVal s As String) Implements
>> Microsoft.ServiceModel.Samples.INotify.Notify
>>
>> Label1.Text = s
>>
>> End Sub
>> End Class
>> </code>
>>
>> The exception is thrown on the line
>>
>> Client.Register(Me)
>>
>> Can anyone suggest a solution?
>>
>> TIA
>>
>> Charles
>>
>>
>
>

From: Charles on 25 Feb 2010 10:05

---

Hi Sloan

Thanks for the reply. I'll look through the posts carefully. From a quick
glance, does it mean that I have to somehow declare the Form1 class to the
service as a known type, or have I misunderstood? If I'm right, I was hoping
to avoid that by having Form1 implement the INotify interface, which the
service _does_ know about, because it defines it.

Charles


"sloan" <sloan(a)ipass.net> wrote in message
news:eXM9sFitKHA.3904(a)TK2MSFTNGP02.phx.gbl...
>
> Read this:
> Shared Types vs Shared Contracts
>
> http://blogs.msdn.com/sowmy/archive/2006/06/06/all-about-knowntypes.aspx
>
>
>
> And this:
>
> http://social.msdn.microsoft.com/Forums/en-US/wcf/thread/6b70e9f4-52bc-4fa9-a0ff-c0859e041e85?prof=required
>
>
>
> and send me a paypal payment, because that took weeks of my time to figure
> that stuff out !!
>
>
>
> "Charles" <blank(a)nowhere.com> wrote in message
> news:%23U6nLdhtKHA.2072(a)TK2MSFTNGP02.phx.gbl...
>>I am trying to modify a MSDN WCF sample, and am getting this error in my
>>client app.
>>
>> "There was an error while trying to serialize parameter
>> http://Microsoft.ServiceModel.Samples:obj. The InnerException message was
>> 'Type 'Client.Form1' with data contract name
>> 'Form1:http://schemas.datacontract.org/2004/07/Client' is not expected.
>> Add any types not known statically to the list of known types - for
>> example, by using the KnownTypeAttribute attribute or by adding them to
>> the list of known types passed to DataContractSerializer.'. Please see
>> InnerException for more details."
>>
>> The WCF project is hosted by a Windows service, and this builds and
>> starts up successfully.
>>
>> The sample is the Calculator sample, which works fine except for my
>> addition. The purpose of the addition is to allow a client to register
>> itself with the service so that it can receive notifications whilst it is
>> alive. The service defines the INotify interface, which is implemented by
>> the client. The client tries to register itself with the service by
>> sending a reference to itself in the Register call, but this is where I
>> get the exception.
>>
>> I have Googled the exception, but none of the answers I have found
>> address the particular thing I am trying to do, so they don't really make
>> sense in my context.
>>
>> I'm not sure how much code to post, but here is the bulk of the Windows
>> service
>>
>> <code>
>> [ServiceContract(Namespace = "http://Microsoft.ServiceModel.Samples")]
>> public interface ICalculator
>> {
>> [OperationContract]
>> double Add(double n1, double n2);
>> [OperationContract]
>> double Subtract(double n1, double n2);
>> [OperationContract]
>> void Register(INotify notifiable);
>> }
>>
>> [ServiceContract(Namespace = "http://Microsoft.ServiceModel.Samples")]
>> [DataContractFormat()]
>> public interface INotify
>> {
>> void Notify(string s);
>> }
>>
>> // Implement the ICalculator service contract in a service class.
>> public class CalculatorService : ICalculator
>> {
>> private INotify m_Notifiable;
>>
>> // Implement the ICalculator methods.
>> public double Add(double n1, double n2)
>> {
>> double result = n1 + n2;
>>
>> m_Notifiable.Notify("Done adding");
>>
>> return result;
>> }
>>
>> public double Subtract(double n1, double n2)
>> {
>> double result = n1 - n2;
>>
>> m_Notifiable.Notify("Done subtracting");
>>
>> return result;
>> }
>>
>> public void Register(INotify notifiable)
>> {
>> // Save for notifications
>> m_Notifiable = notifiable;
>> }
>> }
>> </code>
>>
>> Here is the client:
>>
>> <code>
>> Public Class Form1
>>
>> Implements Microsoft.ServiceModel.Samples.INotify
>>
>> Private Client As CalculatorClient
>>
>> Private Sub ConnectButton_Click(ByVal sender As System.Object, ByVal e
>> As System.EventArgs) Handles ConnectButton.Click
>>
>> ' Step 1: Create an endpoint address and an instance of the WCF
>> Client.
>> Dim epAddress As New
>> EndpointAddress("http://localhost:8000/ServiceModelSamples/Service")
>>
>> Client = New CalculatorClient(New WSHttpBinding(), epAddress)
>>
>> 'Step 2: Call the service operations.
>> ''m_Notifiable = New Notifiable
>>
>> Client.Register(Me)
>>
>> ConnectButton.Enabled = False
>> DisconnectButton.Enabled = True
>>
>> End Sub
>>
>> Private Sub DisconnectButton_Click(ByVal sender As System.Object,
>> ByVal e As System.EventArgs) Handles DisconnectButton.Click
>>
>> ' Step 3: Closing the client gracefully closes the connection and
>> cleans up resources.
>> Client.Close()
>>
>> ConnectButton.Enabled = True
>> DisconnectButton.Enabled = False
>>
>> End Sub
>>
>> Public Sub Notify(ByVal s As String) Implements
>> Microsoft.ServiceModel.Samples.INotify.Notify
>>
>> Label1.Text = s
>>
>> End Sub
>> End Class
>> </code>
>>
>> The exception is thrown on the line
>>
>> Client.Register(Me)
>>
>> Can anyone suggest a solution?
>>
>> TIA
>>
>> Charles
>>
>>
>
>

From: sloan on 25 Feb 2010 10:34

---

You question (after only taking a "quick glance") is very hard to
understand.

>> Public Class Form1
>>>> Implements Microsoft.ServiceModel.Samples.INotify


I don't like that design at all.

If you want your form to be aware of things (being "Notified"), then you
need to declare a object at the class level and subscribe to its
events........and not wire up the form directly to the interface. What
you're doing (on the surface) seems to be mixing and spaghetti'ing things
together.

All you need to think is "If Form2 needed to be notified, how much duplicate
code would I have"....Your answer would be "Alot". Because you're
spaghetti'ing together the Form1 and the "getting notified".


I would suggest looking at the Observer Design Pattern.
http://www.dofactory.com/Patterns/PatternObserver.aspx
And get a feel for it. That is less about WCF and more about OO design.

Here is a hint (from the dofactory example)

IBM ibm = new IBM("IBM", 120.00);

ibm.Attach(new Investor("Sorros"));

ibm.Attach(new Investor("Berkshire"));





class Investor : IInvestor

Then you could raise events in the Investor class.............and then
have Form1 (or Form2 or Form3) subscribe to those events.







I don't know. You'll have to hash it out, I'm just writing out a few
thoughts...............take what I say with a grain of salt.





The concept is more important than my exact words. "Observer Pattern" over
hardwiring up Form1. <<That's the principal I'm trying to convey.







................



You got some digging to do dude............ A little OO and then some WCF.



But try some things out before asking "at a glance" questions........."at a
glance" questions usually confuse the audience and the originator.



Good luck!







"Charles" <blank(a)nowhere.com> wrote in message
news:OlqsxvitKHA.4220(a)TK2MSFTNGP05.phx.gbl...
> Hi Sloan
>
> Thanks for the reply. I'll look through the posts carefully. From a quick
> glance, does it mean that I have to somehow declare the Form1 class to the
> service as a known type, or have I misunderstood? If I'm right, I was
> hoping to avoid that by having Form1 implement the INotify interface,
> which the service _does_ know about, because it defines it.
>
> Charles
>
>
> "sloan" <sloan(a)ipass.net> wrote in message
> news:eXM9sFitKHA.3904(a)TK2MSFTNGP02.phx.gbl...
>>
>> Read this:
>> Shared Types vs Shared Contracts
>>
>> http://blogs.msdn.com/sowmy/archive/2006/06/06/all-about-knowntypes.aspx
>>
>>
>>
>> And this:
>>
>> http://social.msdn.microsoft.com/Forums/en-US/wcf/thread/6b70e9f4-52bc-4fa9-a0ff-c0859e041e85?prof=required
>>
>>
>>
>> and send me a paypal payment, because that took weeks of my time to
>> figure that stuff out !!
>>
>>
>>
>> "Charles" <blank(a)nowhere.com> wrote in message
>> news:%23U6nLdhtKHA.2072(a)TK2MSFTNGP02.phx.gbl...
>>>I am trying to modify a MSDN WCF sample, and am getting this error in my
>>>client app.
>>>
>>> "There was an error while trying to serialize parameter
>>> http://Microsoft.ServiceModel.Samples:obj. The InnerException message
>>> was 'Type 'Client.Form1' with data contract name
>>> 'Form1:http://schemas.datacontract.org/2004/07/Client' is not expected.
>>> Add any types not known statically to the list of known types - for
>>> example, by using the KnownTypeAttribute attribute or by adding them to
>>> the list of known types passed to DataContractSerializer.'. Please see
>>> InnerException for more details."
>>>
>>> The WCF project is hosted by a Windows service, and this builds and
>>> starts up successfully.
>>>
>>> The sample is the Calculator sample, which works fine except for my
>>> addition. The purpose of the addition is to allow a client to register
>>> itself with the service so that it can receive notifications whilst it
>>> is alive. The service defines the INotify interface, which is
>>> implemented by the client. The client tries to register itself with the
>>> service by sending a reference to itself in the Register call, but this
>>> is where I get the exception.
>>>
>>> I have Googled the exception, but none of the answers I have found
>>> address the particular thing I am trying to do, so they don't really
>>> make sense in my context.
>>>
>>> I'm not sure how much code to post, but here is the bulk of the Windows
>>> service
>>>
>>> <code>
>>> [ServiceContract(Namespace =
>>> "http://Microsoft.ServiceModel.Samples")]
>>> public interface ICalculator
>>> {
>>> [OperationContract]
>>> double Add(double n1, double n2);
>>> [OperationContract]
>>> double Subtract(double n1, double n2);
>>> [OperationContract]
>>> void Register(INotify notifiable);
>>> }
>>>
>>> [ServiceContract(Namespace =
>>> "http://Microsoft.ServiceModel.Samples")]
>>> [DataContractFormat()]
>>> public interface INotify
>>> {
>>> void Notify(string s);
>>> }
>>>
>>> // Implement the ICalculator service contract in a service class.
>>> public class CalculatorService : ICalculator
>>> {
>>> private INotify m_Notifiable;
>>>
>>> // Implement the ICalculator methods.
>>> public double Add(double n1, double n2)
>>> {
>>> double result = n1 + n2;
>>>
>>> m_Notifiable.Notify("Done adding");
>>>
>>> return result;
>>> }
>>>
>>> public double Subtract(double n1, double n2)
>>> {
>>> double result = n1 - n2;
>>>
>>> m_Notifiable.Notify("Done subtracting");
>>>
>>> return result;
>>> }
>>>
>>> public void Register(INotify notifiable)
>>> {
>>> // Save for notifications
>>> m_Notifiable = notifiable;
>>> }
>>> }
>>> </code>
>>>
>>> Here is the client:
>>>
>>> <code>
>>> Public Class Form1
>>>
>>> Implements Microsoft.ServiceModel.Samples.INotify
>>>
>>> Private Client As CalculatorClient
>>>
>>> Private Sub ConnectButton_Click(ByVal sender As System.Object, ByVal
>>> e As System.EventArgs) Handles ConnectButton.Click
>>>
>>> ' Step 1: Create an endpoint address and an instance of the WCF
>>> Client.
>>> Dim epAddress As New
>>> EndpointAddress("http://localhost:8000/ServiceModelSamples/Service")
>>>
>>> Client = New CalculatorClient(New WSHttpBinding(), epAddress)
>>>
>>> 'Step 2: Call the service operations.
>>> ''m_Notifiable = New Notifiable
>>>
>>> Client.Register(Me)
>>>
>>> ConnectButton.Enabled = False
>>> DisconnectButton.Enabled = True
>>>
>>> End Sub
>>>
>>> Private Sub DisconnectButton_Click(ByVal sender As System.Object,
>>> ByVal e As System.EventArgs) Handles DisconnectButton.Click
>>>
>>> ' Step 3: Closing the client gracefully closes the connection and
>>> cleans up resources.
>>> Client.Close()
>>>
>>> ConnectButton.Enabled = True
>>> DisconnectButton.Enabled = False
>>>
>>> End Sub
>>>
>>> Public Sub Notify(ByVal s As String) Implements
>>> Microsoft.ServiceModel.Samples.INotify.Notify
>>>
>>> Label1.Text = s
>>>
>>> End Sub
>>> End Class
>>> </code>
>>>
>>> The exception is thrown on the line
>>>
>>> Client.Register(Me)
>>>
>>> Can anyone suggest a solution?
>>>
>>> TIA
>>>
>>> Charles
>>>
>>>
>>
>>

 |  Next  |  Last
Pages: 1 2
Prev: dotnet35sp1
Next: WCF Exception: Type 'MyType' with Data Contract Name 'Some Name'is not Expected