I recently inherited a work in progress, which included reports written in Reporting Services. They were originally written in RS 2008, and I updated them to 2010, including updating the references to Microsoft.ReportViewer.*.
The report shows data using this format:
Trip (column) Status (col) Zone (col) Etc.... (cols)
So there is a heading level for the employee (note - not a header or footer) and columns that apply to that heading. This structure works as deployed under the old version; however, after being upgraded to 2010, The employee field shows "#ERROR", and when I right-click on the field, select "Expression.." and look at the "Fields" list, no fields are available, and a message appears "Report item not linked to a dataset." I can not find any place to link it to a dataset. The columns below this field are linked and show the data you would expect from the underlying table.
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