Consume WCF service using Sharepoint Designer
By default the SharePoint Designer is unable to consume WCF services because it fails to recognize the structure of the request messages. There is a workaround if you still need to consume WCF services using the Designer. However, this does not work via the datasource wizard but instead requires some manual intervention. There are two methods to do accomplish this:
Modify the datasource Modify the code in the page The first method is easier to implement and gives you more control over the output.