Thorsten Viel wrote:

> Thorsten Viel wrote:
>
> it seems that my Object User is the problem. But I work sometimes with own
> classes. And normally they got defined as complex types in wsdl.
>
>
>
>> Hi @all,
>>
>> this is not my first webservice and everytime it worked that way, by now
>> i got following exception when trying to call http://<url>?wsdl in my
>> browser:
>>
>> System.NullReferenceException: Object reference not set to an instance of
>> an object.
>> at
>>
>
System.Runtime.Remoting.MetadataServices.WsdlGenerator.RealSchemaType.PrintMessageWsdl(TextWriter
>> textWriter, StringBuilder sb, String indent, ArrayList refNames)
>> at
>>
>
System.Runtime.Remoting.MetadataServices.WsdlGenerator.XMLNamespace.PrintMessageWsdl(TextWriter
>> textWriter, StringBuilder sb, String indent, ArrayList refNames)
>> at System.Runtime.Remoting.MetadataServices.WsdlGenerator.PrintWsdl()
>> at System.Runtime.Remoting.MetadataServices.WsdlGenerator.Generate()
>> at
>>
>
System.Runtime.Remoting.MetadataServices.MetaData.ConvertTypesToSchemaToStream(ServiceType[]
>> serviceTypes, SdlType sdlType, Stream outputStream)
>> at
>>
>
System.Runtime.Remoting.MetadataServices.SdlChannelSink.GenerateSdl(SdlType
>> sdlType, IServerResponseChannelSinkStack sinkStack, ITransportHeaders
>> requestHeaders, ITransportHeaders responseHeaders, Stream& outputStream)
>> at
>>
>
System.Runtime.Remoting.MetadataServices.SdlChannelSink.ProcessMessage(IServerChannelSinkStack
>> sinkStack, IMessage requestMsg, ITransportHeaders requestHeaders, Stream
>> requestStream, IMessage& responseMsg, ITransportHeaders& responseHeaders,
>> Stream& responseStream)
>> at
>>
>
System.Runtime.Remoting.Channels.Http.HttpServerTransportSink.ServiceRequest(Object
>> state)
>> at System.Runtime.Remoting.Channels.SocketHandler.ProcessRequestNow()
>>
>>
>>
>> The class is more than simple:
>>
>> class UserProvider : MarshalByRefObject {
>>
>> public UserProvider() {
>> }
>>
>> public User[] search(User user, int offset, int limit) {
>>
>> User[] users = user.Search(offset, limit);
>> return users;
>> }
>> }
>>
>>
>> W/o the method it works (but also w/o any function ;-).
>>
>> This class gets registered as WellKnownService in an HttpChannel to
>> provide the webservice functionality. It is the second Service registered
>> there, but as the only one it doesn't work either.
>>
>> Any hint?
>>
>> Thanks Thorsten