I am attempting to get the pinned status of a pane in the ultradockmanager when the user is closing the app. It is clearly available in the watch window or when I check the pane in the immediate window. However, when I extend the immediate window to include the proerty itself it fails. What am I missing.

?ultraDockManagerACM.DockAreas[0].DockAreaPane.Panes[0]
{DockableControlPane (ultraExplorerBarMenus) [Unpinned]}
ActualMaximumSize: {Width = 0 Height = 0}
ActualMinimumSize: {Width = 0 Height = 0}
ActualSize: {Width = 189 Height = 548}
Closed: false
ContainingControl: {Infragistics.Win.UltraWinDock.DockableWindow}
ContentsMargins: {Infragistics.Win.UltraWinDock.Margins}
Control: {Infragistics.Win.UltraWinExplorerBar.UltraExplorerBar}
DefaultPaneSize: {Width = 100 Height = 100}
DisplaySize: {Width = 189 Height = 548}
Disposed: false
DockAreaPane: {DockAreaPane - DockedLeft}
DockedState: Docked
Element: {Infragistics.Win.UltraWinDock.PaneUIElement}
FlyoutSize: {Width = 189 Height = -1}
ForceApplyResources: null
HasSettings: true
Index: 0
InternalId: {ce4a04d3-22a5-4a76-9760-0cc5c2f7215a}
IsActive: false
IsFlyoutPaneDisplayed: false
IsInView: false
IsInitialized: true
IsLayoutSuspended: false
IsMdiChild: false
IsSelectedTab: false
IsUnpinned: true
IsVisible: false
Key: ""
KeyLowercaseInterned: ""
Manager: { [Infragistics.Win.UltraWinDock.UltraDockManager]}
Maximized: false
MaximizedResolved: false
MaximumSize: {Width = 0 Height = 0}
MaximumSizeResolved: {Width = 0 Height = 0}
MdiChildIcon: null
Metrics: {Infragistics.Win.UltraWinDock.DockablePaneBase.PaneMetrics}
Minimized: false
MinimizedResolved: false
MinimumSize: {Width = 0 Height = 0}
MinimumSizeResolved: {Width = 0 Height = 21}
NestDepth: 1
OriginalControlBounds: {X = 80 Y = 40 Width = 200 Height = 365}
Parent: {DockAreaPane - DockedLeft}
ParentDocked: {DockAreaPane - DockedLeft}
ParentFloating: null
ParentGroupSettingsResolved: {Infragistics.Win.UltraWinDock.GroupSettingsResolved}
Pinned: false
PrimaryCollection: {Infragistics.Win.UltraWinDock.DockablePanesCollection}
Settings: {Infragistics.Win.UltraWinDock.PaneSettings}
SettingsResolved: {Infragistics.Win.UltraWinDock.PaneSettingsResolved}
Size: {Width = 100 Height = 100}
SubObjectPropChangeHandler: {Method = {Void OnSubObjectPropChanged(Infragistics.Shared.PropChangeInfo)}}
Tag: null
Text: "Menus"
TextTab: null
TextTabResolved: "Menus"
ToolTipCaption: ""
ToolTipTab: null
UIRole: {Infragistics.Win.AppStyling.UIRole}
UIRoleContentArea: {Infragistics.Win.AppStyling.UIRole}
tagValue: null

?ultraDockManagerACM.DockAreas[0].DockAreaPane.Panes[0].Pinned
error CS1061: 'DockablePaneBase' does not contain a definition for 'Pinned' and no accessible extension method 'Pinned' accepting a first argument of type 'DockablePaneBase' could be found (are you missing a using directive or an assembly reference?)