mart posted on Tuesday, February 13, 2007
I am attempting to connect from a Web Service to the Dataportal. I have setup & tested the Dataportal which seems to be working. However when making a call through the web service i continuallly receive the following error message
Value cannot be null.
Parameter name: type
I have seen this message before under different circumstances and was down to a key entry missing from the config file. As yet i havent been able to find anything that is missing.
The application is in development and both the WebService and the Dataportal reside on the same machine.
Extract from DataPortal config<system.runtime.remoting>
<application>
<service>
<wellknown mode="SingleCall" objectUri="DataPortal.rem" type="CSLA.Server.DataPortal, CSLA.Server.DataPortal" />
<wellknown mode="SingleCall" objectUri="ServicedDataPortal.rem" type="CSLA.Server.ServicedDataPortal.DataPortal, CSLA.Server.ServicedDataPortal" />
</service>
<channels>
<channel ref="http">
<serverProviders>
<provider ref="wsdl"/>
<formatter ref="soap" typeFilterLevel="Full"/>
<formatter ref="binary" typeFilterLevel="Full"/>
</serverProviders>
</channel>
</channels>
</application>
</system.runtime.remoting>
<appSettings>
<add key="Authentication" value="Windows" />
<add key="DB:RSS" value="data source=IS4;initial catalog=i34; integrated security=SSPI" />
</appSettings>
Extract from web service config <appSettings>
<add key="Authentication" value="Windows" />
<add key="PortalServer" value="http://localhost/DataPortal/DataPortal.rem" />
<add key="ServicedPortalServer" value="http://localhost/DataPortal/ServicedDataPortal.rem" />
</appSettings>
<system.web>
<webServices>
<protocols>
<add name="HttpGet" />
<add name="HttpPost" />
</protocols>
</webServices>
<system.web>
