Correct WCF implemetation?

    General discussion

  • Hey folks!

    I have developed a Silverlight Application wich is used to create mp3 playlists. The SL application uses WCF services from an existing web site. I added the services by "Add service reference..." in the SL project. Is this the propper way to add services???

    A service call looks like:

    1    CommonDataService.CommonDataServiceClient service = new PlanetDigital.Silverlight.BoxSteering.CommonDataService.CommonDataServiceClient();
    2    service.GetUserIntendedOrganisationCompleted += new EventHandler(service_GetUserIntendedOrganisationCompleted);
    3    service.GetUserIntendedOrganisationAsync();

     Here is the ServiceReference.ClientConfig:

    1    <configuration>
    2      <system.serviceModel>
    3        <bindings>
    4          <basicHttpBinding>
    5            <binding name="BasicHttpBinding_IExecutionPlanService" maxBufferSize="2147483647"
    6              maxReceivedMessageSize="2147483647">
    7              <security mode="None" />
    8            </binding>
    9            <binding name="BasicHttpBinding_IMp3PlayListService" maxBufferSize="2147483647"
    10             maxReceivedMessageSize="2147483647">
    11             <security mode="None" />
    12           </binding>
    13           <binding name="BasicHttpBinding_IMp3TitleService" maxBufferSize="2147483647"
    14             maxReceivedMessageSize="2147483647">
    15             <security mode="None" />
    16           </binding>
    17           <binding name="BasicHttpBinding_ICommonDataService" maxBufferSize="2147483647"
    18             maxReceivedMessageSize="2147483647">
    19             <security mode="None" />
    20           </binding>
    21         </basicHttpBinding>
    22       </bindings>
    23       <client>
    24         <endpoint address=""
    25           binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IExecutionPlanService"
    26           contract="ExecutionPlanService.IExecutionPlanService" name="BasicHttpBinding_IExecutionPlanService" />
    27         <endpoint address=""
    28           binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IMp3PlayListService"
    29           contract="Mp3PlayListService.IMp3PlayListService" name="BasicHttpBinding_IMp3PlayListService" />
    30         <endpoint address=""
    31           binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IMp3TitleService"
    32           contract="Mp3TitleService.IMp3TitleService" name="BasicHttpBinding_IMp3TitleService" />
    33         <endpoint address=""
    34           binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_ICommonDataService"
    35           contract="CommonDataService.ICommonDataService" name="BasicHttpBinding_ICommonDataService" />
    36       </client>
    37     </system.serviceModel>
    38   </configuration>

    As you can see, I entered the servers ip address. If so i can enter the the application and receive all data but not when I am on the server.

    If I enter localhost, I'm able to call the app from my machine but the services don't get called (no data are transmitted), I can access it directly on the server and the data is transmitted.

    What do i have to do, to reach the services from anywhere i call the sl app.

    It would be awesome if anybody can help me out of this.

    Sorry for my bad english ;)....

    Thx in adv! James

    Thursday, July 30, 2009 5:57 AM

All replies

  • Hi,

    Are you able to browse your WCF Service thorugh localhost ? Can you post your web config's system.serviceModel tag?


    Thursday, July 30, 2009 6:32 AM
  • Yes i can browse the service with:

    - http://localhost/PlanetDigital/Service/WCFServices/BoxSteering/Mp3TitleService.svc

    - http://machineName/PlanetDigital/Service/WCFServices/BoxSteering/Mp3TitleService.svc


     Here is the System.ServiceModel Tag from the web.config of the web site:


    				<binding name="LargeBuffer" maxBufferSize="2147483647" maxReceivedMessageSize="2147483647">
    					<readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647"/>
    				<behavior name="Mp3PlayListServiceBehavior">
    					<serviceMetadata httpGetEnabled="true"/>
    					<serviceDebug includeExceptionDetailInFaults="false"/>
    				<behavior name="CommonDataServiceBehavior">
    					<serviceMetadata httpGetEnabled="true"/>
    					<serviceDebug includeExceptionDetailInFaults="false"/>
    				<behavior name="Mp3TitleServiceBehavior">
    					<serviceMetadata httpGetEnabled="true"/>
    					<serviceDebug includeExceptionDetailInFaults="false"/>
    				<behavior name="ExecutionPlanServiceBehavior">
    					<serviceMetadata httpGetEnabled="true"/>
    					<serviceDebug includeExceptionDetailInFaults="false"/>
    		<serviceHostingEnvironment aspNetCompatibilityEnabled="true"/>
    			<service behaviorConfiguration="Mp3PlayListServiceBehavior" name="Mp3PlayListService">
    				<endpoint address="" binding="basicHttpBinding" bindingConfiguration="LargeBuffer" contract="IMp3PlayListService"/>
    				<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
    			<service behaviorConfiguration="CommonDataServiceBehavior" name="CommonDataService">
    				<endpoint address="" binding="basicHttpBinding" bindingConfiguration="LargeBuffer" contract="ICommonDataService"/>
    				<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
    			<service behaviorConfiguration="Mp3TitleServiceBehavior" name="Mp3TitleService">
    				<endpoint address="" binding="basicHttpBinding" bindingConfiguration="LargeBuffer" contract="IMp3TitleService"/>
    				<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
    			<service behaviorConfiguration="ExecutionPlanServiceBehavior" name="ExecutionPlanService">
    				<endpoint address="" binding="basicHttpBinding" bindingConfiguration="LargeBuffer" contract="IExecutionPlanService"/>
    				<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
    Thursday, July 30, 2009 6:57 AM
  • Hi,

    The only difference I could find is dns tag:

    <service behaviorConfiguration="Mp3TitleServiceBehavior" name="Mp3TitleService">

    <endpoint address="" bindingConfiguration="LargeBuffer" binding="basicHttpBinding" contract="IMp3TitleService">


    <dns value="localhost" />



    <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />


    and diagnostics tag before "behaviors" tag:

    <diagnostics wmiProviderEnabled="false">

    <messageLogging logMalformedMessages="false" logMessagesAtServiceLevel="false" logMessagesAtTransportLevel="false" />


    Please add this and check. Also try to debug your WCF Service to check whether you are getting data in WCF service.

    HTH Smile

    Thursday, July 30, 2009 7:22 AM
  • Thanks for your quick reply, but nothing changed. Other ideas?

    Thursday, July 30, 2009 7:34 AM
  • Are you able to get data from WCF Service with localhost ?

    Thursday, July 30, 2009 7:47 AM
  • i can collect data through the wcf service with localhost but only if I am on the webserver per remote desktop.

    Thursday, July 30, 2009 7:57 AM
  • Hi,

    What do you mean by " webserver per remote desktop "?

    Your project is on your machine? Are you using LinToqSQL ?

    Thursday, July 30, 2009 8:17 AM
  • I'm developing on my local mashine and deploying it afterwards... to test it i surf the deploy-url and also check it directly on the webserver.

    It's a windows server (2003 or 2008) for our IPTV-CMS.

     On my local develop machine i do "Add service reference..." and when i deploy the hole solution I change the

    1    <endpoint address="http://localhost:50670/PlanetDigital/Service/WCFServices/BoxSteering/ExecutionPlanService.svc"
    2            binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IExecutionPlanService"
    3            contract="ExecutionPlanService.IExecutionPlanService" name="BasicHttpBinding_IExecutionPlanService" />


    1    <endpoint address=""
    2            binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IExecutionPlanService"
    3            contract="ExecutionPlanService.IExecutionPlanService" name="BasicHttpBinding_IExecutionPlanService" />
    I thought that "localhost:50760" makes no sense on the webserver so i changed it to "".
    I'm using Linq for some List<T> and Dictonary<T, M> Object, but no LinqToSql.
    Thursday, July 30, 2009 8:34 AM
  • Maybe i found the reason. Our system is deliverd mostly to hotels. So when the reciptionist-lady call the application, she calls

    --> http//

    When a developer connects to the system, he must connect over a vpn tunnel to the system and calls

    --> http//

    When someone calls the application directly on the server he call

    --> http//localhost/Service/WCFServices/BoxSteering/Mp3TitleService.svc

    Can i detect the URL of the host-site in my silverlight application and pass the right sourceurl to the service at runtime

    Can i pass or or localhost at runtime to my service????

    1 	ExecutionPlanService.ExecutionPlanServiceClient service = new PlanetDigital.Silverlight.BoxSteering.ExecutionPlanService.ExecutionPlanServiceClient();
    2              service.GetReferencesCompleted += new EventHandler(service_GetReferencesCompleted);
    3              service.GetReferencesAsync(DataSource.Id);
    Thursday, July 30, 2009 9:40 AM
  • I solved the problem... thanks for help

    Friday, July 31, 2009 4:53 AM