Silverlight and Webservice Exceptions

you need to have fault hadling in your WCF service

http://msdn.microsoft.com/en-us/library/ms733721.aspx -> from MSDN

http://www.c-sharpcorner.com/UploadFile/ankithakur/ExceptionHandlingWCF12282007072617AM/ExceptionHandlingWCF.aspx -> i would prefer this

I tried those but they did not work, Maybe I am missing something. below is an example of an error thrown in my webservice that I want to get the details of in silverlight. The throw exception detail is what I want to catch in silverlight on the return.

sub somefunction
       try
          'do something
       Catch ex As Exception
            Throw New Exception(ex.Message)
       End Try
end sub

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it should be Throw New FaultException(ex.Message)..if that doest work can you post you config file for service

Ok I changed it to throw faultexception below is my web.config. Thank you again for looking at this

<?xml version="1.0" encoding="utf-8"?>
<!--
  For more information on how to configure your ASP.NET application, please visit
  http://go.microsoft.com/fwlink/?LinkId=169433
  -->
<configuration>
  <system.webServer>
    <modules runAllManagedModulesForAllRequests="true">
      <add name="DomainServiceModule" preCondition="managedHandler" type="System.ServiceModel.DomainServices.Hosting.DomainServiceHttpModule, System.ServiceModel.DomainServices.Hosting, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
    </modules>
    <validation validateIntegratedModeConfiguration="false" />
  </system.webServer>
  <system.web>
    <httpModules>
      <add name="DomainServiceModule" type="System.ServiceModel.DomainServices.Hosting.DomainServiceHttpModule, System.ServiceModel.DomainServices.Hosting, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
    </httpModules>
    <compilation debug="true" strict="false" explicit="true" targetFramework="4.0">
      <assemblies>
        <add assembly="System.Data.Entity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
      </assemblies>
    </compilation>
  </system.web>
  <system.serviceModel>
    <behaviors>
      <serviceBehaviors>
        <behavior name="">
          <serviceMetadata httpGetEnabled="true" />
          <serviceDebug includeExceptionDetailInFaults="false" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <extensions>
      <behaviorExtensions>
        <add name="silverlightFaults"
          type="SilverlightFaultBehavior.SilverlightFaultBehavior,
        SilverlightFaultBehavior, Version=1.0.0.0,
        Culture=neutral, PublicKeyToken=null" />
      </behaviorExtensions>
    </extensions>
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
  </system.serviceModel>
  <connectionStrings>
    <add name="SNC_OperationsConnectionString3" connectionString="Data Source=snccostpoint;Initial Catalog=SNC_Operations;Persist Security Info=True;User ID=WT_Operations" providerName="System.Data.SqlClient" /><add name="SNC_OperationsConnectionString" connectionString="Data Source=snccostpoint;Initial Catalog=SNC_Operations;Persist Security Info=True;User ID=WT_Operations;Password=G&amp;E+KGxbg6WNjUu" providerName="System.Data.SqlClient" />
  <add name="SNC_OperationsEntities" connectionString="metadata=res://*/Operations.csdl|res://*/Operations.ssdl|res://*/Operations.msl;provider=System.Data.SqlClient;provider connection string=&quot;Data Source=snccostpoint;Initial Catalog=SNC_Operations;Persist Security Info=True;User ID=WT_Operations;Password=G&amp;E+KGxbg6WNjUu;MultipleActiveResultSets=True&quot;" providerName="System.Data.EntityClient" /><add name="SNC_OperationsEntities1" connectionString="metadata=res://*/Operations.csdl|res://*/Operations.ssdl|res://*/Operations.msl;provider=System.Data.SqlClient;provider connection string=&quot;Data Source=snccostpoint;Initial Catalog=SNC_Operations;Persist Security Info=True;User ID=WT_Operations;Password=G&amp;E+KGxbg6WNjUu;MultipleActiveResultSets=True&quot;" providerName="System.Data.EntityClient" /><add name="SNC_OperationsEntities2" connectionString="metadata=res://*/OperationsDataModel.csdl|res://*/OperationsDataModel.ssdl|res://*/OperationsDataModel.msl;provider=System.Data.SqlClient;provider connection string=&quot;Data Source=snccostpoint;Initial Catalog=SNC_Operations;Persist Security Info=True;User ID=WT_Operations;Password=G&amp;E+KGxbg6WNjUu;MultipleActiveResultSets=True&quot;" providerName="System.Data.EntityClient" /><add name="Operations_Data_ModelContainer" connectionString="metadata=res://*/Operations_Data_Model.csdl|res://*/Operations_Data_Model.ssdl|res://*/Operations_Data_Model.msl;provider=System.Data.SqlClient;provider connection string=&quot;Data Source=snccostpoint;Initial Catalog=SNC_Operations;Persist Security Info=True;User ID=WT_Operations;Password=G&amp;E+KGxbg6WNjUu;MultipleActiveResultSets=True&quot;" providerName="System.Data.EntityClient" /><add name="SNC_OperationsEntities3" connectionString="metadata=res://*/OperationsModel.csdl|res://*/OperationsModel.ssdl|res://*/OperationsModel.msl;provider=System.Data.SqlClient;provider connection string=&quot;Data Source=snccostpoint;Initial Catalog=SNC_Operations;Persist Security Info=True;User ID=WT_Operations;Password=G&amp;E+KGxbg6WNjUu;MultipleActiveResultSets=True&quot;" providerName="System.Data.EntityClient" /></connectionStrings>
</configuration>

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That was the web.config from the wevservice project. I assume that is the one you wanted

i have modified your config as below ....

under services - > service i have added a sample you will need to modify it as per your contract

<system.serviceModel>
    <behaviors>
      <endpointBehaviors>
        <behavior name="SilverlightFaultBehavior">
          <silverlightFaults/>
        </behavior>
      </endpointBehaviors>
      <serviceBehaviors>
        <behavior name="">
          <serviceMetadata httpGetEnabled="true" />
          <serviceDebug includeExceptionDetailInFaults="false" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <extensions>
      <behaviorExtensions>
        <add name="silverlightFaults"
          type="SilverlightFaultBehavior.SilverlightFaultBehavior,
        SilverlightFaultBehavior, Version=1.0.0.0,
        Culture=neutral, PublicKeyToken=null" />
      </behaviorExtensions>
    </extensions>
     <services>
      <service behaviorConfiguration="WcfService.Service1Behavior" name="WcfService.SilverlightService">
        <endpoint address="" binding="basicHttpBinding" bindingConfiguration="" contract="WcfService.ISilverlightService"
                behaviorConfiguration="SilverlightFaultBehavior"  >
          <identity>
            <dns value="localhost"/>
          </identity>
        </endpoint>
      </service>
    </services>
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
  </system.serviceModel>

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when I added your part of the web.config. I get the error message saying that this part is a invalid child element

      <behavior name="SilverlightFaultBehavior">
          <silverlightFaults/>
        </behavior>


Any ideas why?

can you post you web config file.... i cant find anything wrong with the one i posted other than the service contract names..which you would have changed while copying into your web config

When I want to catch an exception in my silverlight clients from a webservice I'll put the exception handling in the webservice and in the event of an exception return the exception details to the client.

I then build logic into the client to handle that returned data and treat it as an exception..

I tried that and  still can not find anything wrong. Can you post a sample app that can catch and display a simple "throw new exception("test message")

Thank you