I am trying to create a master-detail report in VS2010 and I'm trying to follow the steps in this link.
The problem is the guide must be using the old version since a List is the same as a tablix in ReportViewer 2010.
"To do this, right-click on the List and choose Properties from the context menu. In the List Properties dialog click on Edit details group
In the guide, it has this step, but there is no Edit details group in the tablix properties.