System.Object
   System.ComponentModel.Design.ComponentDesigner
      System.Web.UI.Design.HtmlControlDesigner
         System.Web.UI.Design.ControlDesigner
            ESRI.ArcGIS.ADF.Web.UI.WebControls.Design.Designers.TaskDesigner
               ESRI.ArcGIS.ADF.ArcGISServer.Editor.Design.EditorTaskDesigner
   System.Drawing.Design.UITypeEditor
      ESRI.ArcGIS.ADF.ArcGISServer.Editor.Design.AttributeDisplayEditor
      ESRI.ArcGIS.ADF.ArcGISServer.Editor.Design.EditableLayersEditor
      ESRI.ArcGIS.ADF.ArcGISServer.Editor.Design.MapResourceSelectionEditor
      ESRI.ArcGIS.ADF.ArcGISServer.Editor.Design.VersionIDsEditor
   System.MarshalByRefObject
      System.ComponentModel.Component
         System.Windows.Forms.Control
            System.Windows.Forms.ScrollableControl
               System.Windows.Forms.ContainerControl
                  System.Windows.Forms.Form
                     ESRI.ArcGIS.ADF.ArcGISServer.Editor.Design.AttributeDisplayEditorForm
                     ESRI.ArcGIS.ADF.ArcGISServer.Editor.Design.EditableLayersEditorForm
                     ESRI.ArcGIS.ADF.ArcGISServer.Editor.Design.MapResourceSelectionEditorForm
                     ESRI.ArcGIS.ADF.ArcGISServer.Editor.Design.VersionIDsEditorForm

Reference

ESRI.ArcGIS.ADF.ArcGISServer.Editor Assembly