I have a report that is using the Entity Framework for its data source.  The report is working fine.  I have added a simple string parameter to the report that I want to filter the results by.  In my ReportDataSourceProvider I inspect the reportParameters dictionary for the parameter and it is found but the value is always something other than what was typed on the screen during report execution.

Value I typed in: timothy

Value I see in code behind for the OperatorName parameter: System.Func`1[System.Object]

Here is my class:

[ReportDataSourceExport(ReportSearchPattern = "ReportOperatorList.*")]
    public class ReportOperatorListDataSourceProvider
                         : IReportDataSourceProvider, IDisposable
    {
        private EFModelEntities ctx = new EFModelEntities();
 
        public object GetDataSource(string name, IDictionary<string, ParameterValue> reportParameters)
        {
            if (reportParameters.ContainsKey("OperatorName") && reportParameters["OperatorName"].Value != null)
            {
                var opname = reportParameters["OperatorName"].Value.ToString();
 
                if (String.IsNullOrEmpty(opname))
                {
                    return ctx.Operators.OrderBy(c => c.OperatorName);
                }
                else
                {
                    return ctx.Operators.Where(o => o.OperatorName.Contains(opname)).OrderBy(c => c.OperatorName);
                }
            }
            else
            {
                return ctx.Operators.OrderBy(c => c.OperatorName);
            }
        }
 
        public void Dispose()
        {
            ctx.Dispose();
        }
    }

Any ideas on what I am most likely doing wrong?