![]() ![]() ![]() One solution to this is quite simple, fortunately. Object reference not set to an instance of an object.” Not so good. When I ran through the wizard, the wizard ended with the error “Error consuming WCF service metadata. The second option was perfect for our situation. The wizard can import directly from a running service, or it can import directly from a WSDL and associated XSD’s. Right-click the project and select “Add” then “Add Generated Items…”, then choose the “Consume WCF Service” option. In a great example of unfriendly UI design, to reach this tool you must first have a BizTalk project open. BizTalk can generate a proxy (message and port types and schemas) for a service using the WCF Service Consuming Wizard. In my case the service client is BizTalk Server 2006 R2, using its built-in support for WCF. Since we can’t download metadata from the service, the developers gave us a copy of their XSD’s and WSDL file (the latter generated by WSCF). The service contract is defined by the XSD’s. NET proxy classes and WSDL files from XML schemas. The company that built the service uses the Web Services Contract First (WSCF) tool from Thinktecture to generate serializable. The Service Model Metadata Tool (a.k.a svcutil.exe) can connect to the service for metadata download (svcutil.exe /t:metadata ), but the result is a brief WSDL that contains no type information (no messages, no bindings, no schema at all). I’ve recently been working with an existing WCF service that does not properly export its metadata. ![]()
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