System.Object
   ESRI.ArcGIS.Client.BACore.Client.BAUtilityParameters
      ESRI.ArcGIS.Client.BACore.Client.BABaseParameters
         ESRI.ArcGIS.Client.BAServer.Tasks.TradeAreas.ThresholdRingsRadiiParameters
   ESRI.ArcGIS.Client.BACore.Client.SummaryReportParameters
      ESRI.ArcGIS.Client.BACore.Client.BATaskParameters
         ESRI.ArcGIS.Client.BAServer.Tasks.TradeAreas.TradeAreaTaskParameters
            ESRI.ArcGIS.Client.BAServer.Tasks.TradeAreas.CustomerDerivedAreasParameters
            ESRI.ArcGIS.Client.BAServer.Tasks.TradeAreas.DriveTimeParameters
            ESRI.ArcGIS.Client.BAServer.Tasks.TradeAreas.GridsParameters
            ESRI.ArcGIS.Client.BAServer.Tasks.TradeAreas.RemoveOverlapParameters
            ESRI.ArcGIS.Client.BAServer.Tasks.TradeAreas.SimpleRingsParameters
            ESRI.ArcGIS.Client.BAServer.Tasks.TradeAreas.StandardLevelsOfGeographyParameters
            ESRI.ArcGIS.Client.BAServer.Tasks.TradeAreas.ThresholdRingsParameters
   ESRI.ArcGIS.Client.BAServer.Tasks.BAServerTask<TResult>
      ESRI.ArcGIS.Client.BACore.Client.BATask<TResult,TEventArgs>
         ESRI.ArcGIS.Client.BACore.Client.AbstractTask
            ESRI.ArcGIS.Client.BAServer.Tasks.TradeAreas.CustomerDerivedAreasTask
            ESRI.ArcGIS.Client.BAServer.Tasks.TradeAreas.DriveTimeTask
            ESRI.ArcGIS.Client.BAServer.Tasks.TradeAreas.GridsTask
            ESRI.ArcGIS.Client.BAServer.Tasks.TradeAreas.RemoveOverlapTask
            ESRI.ArcGIS.Client.BAServer.Tasks.TradeAreas.SimpleRingsTask
            ESRI.ArcGIS.Client.BAServer.Tasks.TradeAreas.StandardLevelsOfGeographyTask
            ESRI.ArcGIS.Client.BAServer.Tasks.TradeAreas.ThresholdRingsRadiiTask
            ESRI.ArcGIS.Client.BAServer.Tasks.TradeAreas.ThresholdRingsTask
   ESRI.ArcGIS.Client.BAServer.Tasks.TradeAreas.ThresholdRingRadii

Reference

ESRI.ArcGIS.Client.BAServer Assembly