Hi! I have a problem
I build client server application on silverlight  2.0
I implement webService project - ChatService and asp.net project Chat.Display project
I need to use in Chat.Display the webService  ChatService
How can i add web reference to Chat.Display project?
I can just Add Service Link not Add web Reference?

Thanks 

Use the "Add Service Reference" function, it does effectively the same thing as the old familiar "Add Web Reference" used to do for other project types. :)

Microsoft Xbox MVP

Understood
I add web service reference to my project

web service contain just one method

[WebMethod]
public string HelloWorld()
{
    return "Hello World";
}
 

Could you tell me or give me the code sample how to use this method from Page.xaml.cs code file please 

Thank you very much!
 

 Assuming your Web service in your web project is named HelloWebService you'd do the following from your Silverlight Application project:

1. Build the Web service project.
   
2. Click "Add Service Reference".
3. Click the Discover button and choose "Services in Solution".
4. Select HelloWebService.asmx.
5. Enter a Namespace, e.g. "Testing".
   
6. Click OK.
7. Goto your Page.xaml.cs file and add a using class for your namespace.
   
8. In a method or even the constructor Page() enter: "HelloWebServiceSoapClient client = new HelloWebServiceSoapClient();"
   
9. This will instantiate an instance of the proxy class.
10. Next assign a callback event handler like this: "client.HelloWorldCompleted += HelloWorldCompletedEventArgs>(ClientHelloWorldCompleted);" Use the code generator helper for this. i.e. press TAB.
    
11. Call the method asynchronously: "client.HelloWorldAsync();"
12. Then in the ClientHelloWorldCompleted method inspect the e.Result.

Microsoft Xbox MVP

Yes it simple
But i have some error 

An exception of type 'System.ServiceModel.ProtocolException' occurred in System.ServiceModel.dll but was not handled in user code
Additional information: [UnexpectedHttpResponseCode]
Arguments:Not Found
Debugging resource strings are unavailable. Often the key and arguments provide sufficient information to diagnose the problem. See http://go.microsoft.com/fwlink/?linkid=106663&Version=2.0.30226.2&File=System.ServiceModel.dll&Key=UnexpectedHttpResponseCode

Code:

public Page()
        {
            InitializeComponent();


            ChatService.ChatSoapClient client = new Addition.Chat.Silverlight.ChatService.ChatSoapClient();           

            client.HelloWorldCompleted += new EventHandler<Addition.Chat.Silverlight.ChatService.HelloWorldCompletedEventArgs>(client_HelloWorldCompleted);
            client.HelloWorldAsync();
        }
        //----------------------------------------------------------------------------------------------------------------
        void client_HelloWorldCompleted(object sender, Addition.Chat.Silverlight.ChatService.HelloWorldCompletedEventArgs e)
        {
            String s = "";
        }

Do you have any idea?

Thanks
 

That sounds like you are trying to call cross-domain. Create a clientaccesspolicy.xml file as per here (http://msdn2.microsoft.com/en-us/library/cc197955(VS.95).aspx) and put it in the root of the web site. Note this is not in the web service directory, but rather the root of the whole site. You should be able to access it using your web browser.

Does that solve the problem?
 

Microsoft Xbox MVP

 Thank you - it works

Its not working for me ........ following is the exception for..

Debugging resource strings are unavailable. Often the key and arguments provide sufficient information to diagnose the problem. See http://go.microsoft.com/fwlink/?linkid=106663&Version=2.0.30226.2&File=System.ServiceModel.dll&Key=UnexpectedHttpResponseCode

Please show your code

I continually have the Arguments Not Found error and I have been working on it all day to no avail. Nothing seems to have an impact. i even built an application completely from scratch, all localhost, all defaults, and the same thing happens.

I am on IE7 and using VS2008 with Cassini for testing.

Web service call:

Ok, I pulled this completely out of Cassini and it worked. It didn't work when I tried it on 2 separate machines and I ran into the same error. I am going to put as much detail of this error here so it gets ht by the search engines and may help others.

Also, adding in a clientaccesspolicy.xml file into localhost route had no impact. However, I didn't investigate in detail how Cassini operates so I probably placed it in the wrong location. 

Basically, publish both the services website and the Silverlight website to IIS under localhost.

'e.Result' threw an exception of type 'System.Reflection.TargetInvocationException'

{System.ServiceModel.ProtocolException: [UnexpectedHttpResponseCode]
Arguments:Not Found
Debugging resource strings are unavailable. Often the key and arguments provide sufficient information to diagnose the problem. See http://go.microsoft.com/fwlink/?linkid=106663&Version=2.0.30226.2&File=System.ServiceModel.dll&Key=UnexpectedHttpResponseCode
   at System.ServiceModel.AsyncResult.End[TAsyncResult](IAsyncResult result)
   at System.ServiceModel.Channels.ServiceChannel.SendAsyncResult.End(SendAsyncResult result)
   at System.ServiceModel.Channels.ServiceChannel.EndCall(String action, Object[] outs, IAsyncResult result)
   at System.ServiceModel.ClientBase`1.ChannelBase`1.EndInvoke(String methodName, Object[] args, IAsyncResult result)
   at SilverlightApplication3.ServiceReference1.Service1SoapClient.Service1SoapClientChannel.EndHelloWorld(IAsyncResult result)
   at SilverlightApplication3.ServiceReference1.Service1SoapClient.SilverlightApplication3.ServiceReference1.Service1Soap.EndHelloWorld(IAsyncResult result)
   at SilverlightApplication3.ServiceReference1.Service1SoapClient.EndHelloWorld(IAsyncResult result)
   at SilverlightApplication3.ServiceReference1.Service1SoapClient.OnEndHelloWorld(IAsyncResult result)
   at System.ServiceModel.ClientBase`1.OnAsyncCallCompleted(IAsyncResult result)}

{System.ServiceModel.ProtocolException: [UnexpectedHttpResponseCode]
Arguments:Not Found
Debugging resource strings are unavailable. Often the key and arguments provide sufficient information to diagnose the problem. See http://go.microsoft.com/fwlink/?linkid=106663&Version=2.0.30226.2&File=System.ServiceModel.dll&Key=UnexpectedHttpResponseCode
   at System.ServiceModel.AsyncResult.End[TAsyncResult](IAsyncResult result)
   at System.ServiceModel.Channels.ServiceChannel.SendAsyncResult.End(SendAsyncResult result)
   at System.ServiceModel.Channels.ServiceChannel.EndCall(String action, Object[] outs, IAsyncResult result)
   at System.ServiceModel.ClientBase`1.ChannelBase`1.EndInvoke(String methodName, Object[] args, IAsyncResult result)
   at SilverlightApplication3.ServiceReference1.Service1SoapClient.Service1SoapClientChannel.EndHelloWorld(IAsyncResult result)
   at SilverlightApplication3.ServiceReference1.Service1SoapClient.SilverlightApplication3.ServiceReference1.Service1Soap.EndHelloWorld(IAsyncResult result)
   at SilverlightApplication3.ServiceReference1.Service1SoapClient.EndHelloWorld(IAsyncResult result)
   at SilverlightApplication3.ServiceReference1.Service1SoapClient.OnEndHelloWorld(IAsyncResult result)
   at System.ServiceModel.ClientBase`1.OnAsyncCallCompleted(IAsyncResult result)}

Hi All,

I am still facing the same error even though i had use clientpolicy xml file and publish the website

any idea

Thanks & warm Regards
Ajay Gaikwad|Software Engineer
Accenture|Delivery Centers for Technology in India
Godrej&BoyceComplex,LBSMarg ,Vikroli(West)
ajay.gaikwad@accenture.com

Hi,

i tried using add service reference instead of add web reference.

after i added that web service, in intellicence, it should show me the list of webmethods. its actually showing the methods but with "async " postfix.

is  it because these web methods are talking to backend data base? because this is only the case with methods returning some value, other void methods are perfectly working!!!

needed help immedtley.

Thanks,

Lakshmi

hi, i have created a silver light UI.

There is a login page, which authenticates the user using a webmethod

Authenticate(uname, pwd); which returs "usercontext" data object.but after i refered the webservice which contains this method, it just shows void as return type. not usercontext. why is it happening?

Could you show your code?

string role = GetPrimaryRole(userContextData);

 Hello, you can't use "Authenticate" directly. Everything in Silverlight are in async-mode. Not sync-mode.

You have to use async-mode like below.

For example:

{

WebServiceProxy.ProductManagerSoapClient productMgrSoapClient = new SL2WebSrv.WebServiceProxy.ProductManagerSoapClient();

productMgrSoapClient.RetrieveProductsAsync();
productMgrSoapClient.RetrieveProductsCompleted +=
new EventHandler<SL2WebSrv.WebServiceProxy.RetrieveProductsCompletedEventArgs>(productMgrSoapClient_RetrieveProductsCompleted);

}

void productMgrSoapClient_RetrieveProductsCompleted(object sender, SL2WebSrv.WebServiceProxy.RetrieveProductsCompletedEventArgs e) {
if (e.Error == null)
   displayData(e.Result);
}
 

(If this has answered your question, please click on "Mark as Answer" on this post. Thank you!)

Best Regards,
Michael Sync

Microsoft WPF & Silverlight Insider
Blog : http://michaelsync.net

Try to use code bellow

 It needs to replace {Service namespace }

private RES_ServiceSoapClient service;

public Page()
{
      InitializeComponent();
      service = new RES_ServiceSoapClient();
      service.AuthenticateCompleted += new EventHandler<{Service namespace }.AuthenticateCompletedEventArgs>(Service_AuthenticateCompleted);
} 

private void Service_AuthenticateCompleted(object sender, {Service namespace }.AuthenticateCompletedEventArgs e)
{

    if(null == e.Error)
    {

          RES_ServiceSoapClient UserContext userContextData = new UserContext();
          userContextData = e.Result;        

          string role = GetPrimaryRole(userContextData);

          }
}

public void validateUser(object sender, RoutedEventArgs e)

{
    service.AuthenticateAsync(user.Text, password.Text);
}

Heyyyy, ! its built successfully with out any error, thanks a lot... :)

You are welcome - Please,Mark as Answer

m sorry to ask a stupid doubt, but how to mark it as an answer, i cudnt find that option anywhere!

lakshmi krishna:

m sorry to ask a stupid doubt, but how to mark it as an answer, i cudnt find that option anywhere!

No. You can't. Only the original poster can mark it as an answer.  I'm not sure why the team of this forum uses that way.....

(If this has answered your question, please click on "Mark as Answer" on this post. Thank you!)

Best Regards,
Michael Sync

Microsoft WPF & Silverlight Insider
Blog : http://michaelsync.net

Hi,  

i am able to build the solution, but once the user name n password is entered, its giving the below error. 

An exception of type 'System.ServiceModel.CommunicationException' occurred in System.ServiceModel.dll but was not handled in user code

Additional information: [CrossDomainError]
Arguments:
Debugging resource strings are unavailable. Often the key and arguments provide sufficient information to diagnose the problem. See http://go.microsoft.com/fwlink/?linkid=106663&Version=2.0.30226.2&File=System.ServiceModel.dll&Key=CrossDomainError

(PLS. Do let me know how to mark a post as answered !! )

hey even u have written - ( If this has answered your question, please click on "Mark as Answer" on this post. Thank you!)

could anyone please tell me how do i "mark a post as answer" ???, is there a hyper link or button by name "mark as answer" ?

lakshmi krishna:

hey even u have written - ( If this has answered your question, please click on "Mark as Answer" on this post. Thank you!)

It's my signature, man. :)

As I said in my previous thread, only original poster can mark it as an answer.. So, it won't be possible for you to do.

(If this has answered your question, please click on "Mark as Answer" on this post. Thank you!)

Best Regards,
Michael Sync

Microsoft WPF & Silverlight Insider
Blog : http://michaelsync.net

oops! ok... i got it :)

Hi, 

i am getting this error , i have been trying to fix this from many days.

An exception of type 'System.ServiceModel.ProtocolException' occurred in System.ServiceModel.dll but was not handled in user code

Additional information: The remote server returned an unexpected response: (404) Not Found.

after i edited the manifest, i am able to view the exception in detail!. as shown below. even after including clientaccesspolicy.xml and crossdomain.xml files.

An exception of type 'System.ServiceModel.ProtocolException' occurred in System.ServiceModel.dll but was not handled in user code

Additional information: The remote server returned an unexpected response: (404) Not Found.

could anyone tell me the solution for this

Hi  lakshmi

Are you trying to use you WCF service using IIS.if so then please add .SVC extension from confirgution option of property of your virtual directory.Error may occur due to access problem. your silverlight desktop apll will not understand where the service is avaiable. can you please check the address of your service in webconf file in web app and service confirgution file it should be same. please let me know if you need more clarifcation on same.

Thanks & warm Regards
Ajay Gaikwad|Software Engineer
Accenture|Delivery Centers for Technology in India
Godrej&BoyceComplex,LBSMarg ,Vikroli(West)
ajay.gaikwad@accenture.com

Hi Ajay,

Thanks. Actually i found the solution.

I am using a simple asmx service. I created one more service in the same domain as of the Application to access the cross domain service,now its workin perfectly..

Hi,

iam getting the same error wha tu mentioned in this thread

"An exception of type 'System.ServiceModel.ProtocolException' occurred in System.ServiceModel.dll but was not handled in user code".

i read the answer what u ahve given but iam not able to understand properly.

How to add "clientaccesspolicy.xml " ,and where to add???????

i have one silverlightApplication,one webservice.

iam calling webservice in silverlgiht applciation by using service reference.

and i have written the code in xaml.cs to call the web service.

iam not understanding what is the root ?where to add the "clientaccesspolicy.xml"?

iam calling webservice in the silverlgiht application ,so silverlgiht application becames the host of the webservice,Right????????

so that i added this "clientaccesspolicy.xml" in the silverlgiht applciation.

plese reply me ASAP.

Thanks & Regards

Deepika

I suppose your solution has 3 projects - the Silverlight application, the web app that hosts the Silverlight project and the Web service project, right? Your policy file should be added to the root of the third project. You can copy it next to the .svc file.

However, if you are only consuming an external service over which you have no control over, you can only hope that the provider of the service has the policy file in place.

Cross domain access without the policy file is forbidden in Silverlight to avoid cross site forgery. Read this MSDN article and three part article by Karen Corby starting here.

Hope this helps,
Jim (http://jimmangaly.blogspot.com/)

Please MARK the replies as answers if they answered your question

http://www.identitymine.com/

Please can u tell me how to add a refernce to the MSn Search lnk in a silverlight application

I want to add a refernce to the following link: http://soap.search.msn.com/webservices.asmx?wsdl 

its very urgent.

 Hi amur

You just download the file what you want to add the reference in to your project like (.dll) files . and the open your project in your project silvelright references is there .Just right click on that give add references .then click the Browse button and add the referece where you save the download file 

SimbuAarumugam India
http://simbusoftwareengineer.blogspot.com
(Mark As Answer If its Satisfy your needs)

 hi lakshmi

Did you use LINQ in your project .. please update the service reference in your project or delete and re add your service references .. this is a problem for generating the error The remote server returned an unexpected response: (404) Not Found.   Check it correctly 

SimbuAarumugam India
http://simbusoftwareengineer.blogspot.com
(Mark As Answer If its Satisfy your needs)