Hello,
I have dock that starts out docked right. When I undock it, and try to add it to the document host (center) on the right side, I get a null reference exception before I even realease the mouse. The exception detail is listed below, as well as a shortened version of the docking I am using. Any idea why this might happen?
EDIT: Using Q2, WPF, .Net 4.0
Thanks,
Eric
System.NullReferenceException was unhandled
HResult=-2147467261
Message=Object reference not set to an instance of an object.
Source=Telerik.Windows.Controls.Docking
StackTrace:
at Telerik.Windows.Controls.RadDocking.GetElementPositionAtScreenRoot(FrameworkElement element) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\Docking\RadDocking.cs:line 1473
at Telerik.Windows.Controls.RadDocking.GetCuePosition(RadPaneGroup targetGroup, DockPosition position, Size draggedElementRelativeSize) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\Docking\RadDocking.cs:line 1370
at Telerik.Windows.Controls.RadDocking.AdjustCueSizeAndLocation(Size draggedElementRelativeSize, Size draggedElementInitialSize) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\Docking\RadDocking.cs:line 1385
at Telerik.Windows.Controls.RadDocking.OnDragContainer(RadSplitContainer container, Point globalMousePosition) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\Docking\RadDocking.cs:line 389
at Telerik.Windows.Controls.RadDocking.OnToolWindowDrag(ToolWindow window, Point globalMousePosition) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\Docking\RadDocking.cs:line 276
at Telerik.Windows.Controls.Docking.ToolWindow.OnDragDelta(Point globalMousePosition, Rect initialRect, Rect destinationRect, Boolean isResize) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\Parts\ToolWindow.cs:line 522
at Telerik.Windows.Controls.WindowBase.Telerik.Windows.Controls.InternalWindow.IDragAware.OnDragDelta(Point globalMousePosition, Rect initialRect, Rect destinationRect, Boolean isResize) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\Navigation\Window\WindowBase.cs:line 1267
at Telerik.Windows.Controls.InternalWindow.WindowHostBase.OnDragDelta(Point globalMousePosition, Rect initialRect, Rect destinationRect, Boolean isResize) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\Navigation\Window\InternalWindow\WindowHostBase.cs:line 85
at Telerik.Windows.Controls.InternalWindow.ChromelessWindowHelper.OnWindowPositionUpdating(Rect windowPosition) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\Navigation\Window\InternalWindow\WindowChrome\ChromelessWindowHelper.cs:line 350
at Telerik.Windows.Controls.InternalWindow.ChromelessWindowHelper.HandleMoving(IntPtr hwnd, IntPtr wParam, IntPtr lParam, Boolean& handled) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\Navigation\Window\InternalWindow\WindowChrome\ChromelessWindowHelper.cs:line 551
at Telerik.Windows.Controls.InternalWindow.ChromelessWindowHelper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\Navigation\Window\InternalWindow\WindowChrome\ChromelessWindowHelper.cs:line 857
at System.Windows.Interop.HwndSource.PublicHooksFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
InnerException:
I have dock that starts out docked right. When I undock it, and try to add it to the document host (center) on the right side, I get a null reference exception before I even realease the mouse. The exception detail is listed below, as well as a shortened version of the docking I am using. Any idea why this might happen?
EDIT: Using Q2, WPF, .Net 4.0
Thanks,
Eric
<
telerik:RadDocking
Grid.Row
=
"1"
x:Name
=
"radDock"
telerikQuickStart:ThemeAwareBackgroundBehavior.IsEnabled
=
"True"
BorderThickness
=
"0"
Padding
=
"0"
Visibility
=
"Hidden"
>
<
telerik:RadDocking.DocumentHost
>
<
telerik:RadPaneGroup
x:Name
=
"MainGroup"
>
<
telerik:RadPane
x:Name
=
"GanttPane"
Header
=
"Build Directories"
ContextMenuTemplate
=
"{x:Null}"
>
<
Grid
>
</
Grid
>
</
telerik:RadPane
>
</
telerik:RadPaneGroup
>
</
telerik:RadDocking.DocumentHost
>
<
telerik:RadSplitContainer
telerik:DockingPanel.InitialSize
=
"300,800"
x:Name
=
"RightContainer"
InitialPosition
=
"DockedRight"
>
<
telerik:RadPaneGroup
x:Name
=
"RightGroup"
>
<
telerik:RadPane
x:Name
=
"DirInfoPane"
Header
=
"Directory Information"
IsHidden
=
"True"
>
<
ListBox
ScrollViewer.HorizontalScrollBarVisibility
=
"Disabled"
>
</
ListBox
>
</
telerik:RadPane
>
</
telerik:RadPaneGroup
>
</
telerik:RadSplitContainer
>
</
telerik:RadDocking
>
System.NullReferenceException was unhandled
HResult=-2147467261
Message=Object reference not set to an instance of an object.
Source=Telerik.Windows.Controls.Docking
StackTrace:
at Telerik.Windows.Controls.RadDocking.GetElementPositionAtScreenRoot(FrameworkElement element) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\Docking\RadDocking.cs:line 1473
at Telerik.Windows.Controls.RadDocking.GetCuePosition(RadPaneGroup targetGroup, DockPosition position, Size draggedElementRelativeSize) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\Docking\RadDocking.cs:line 1370
at Telerik.Windows.Controls.RadDocking.AdjustCueSizeAndLocation(Size draggedElementRelativeSize, Size draggedElementInitialSize) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\Docking\RadDocking.cs:line 1385
at Telerik.Windows.Controls.RadDocking.OnDragContainer(RadSplitContainer container, Point globalMousePosition) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\Docking\RadDocking.cs:line 389
at Telerik.Windows.Controls.RadDocking.OnToolWindowDrag(ToolWindow window, Point globalMousePosition) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\Docking\RadDocking.cs:line 276
at Telerik.Windows.Controls.Docking.ToolWindow.OnDragDelta(Point globalMousePosition, Rect initialRect, Rect destinationRect, Boolean isResize) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\Parts\ToolWindow.cs:line 522
at Telerik.Windows.Controls.WindowBase.Telerik.Windows.Controls.InternalWindow.IDragAware.OnDragDelta(Point globalMousePosition, Rect initialRect, Rect destinationRect, Boolean isResize) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\Navigation\Window\WindowBase.cs:line 1267
at Telerik.Windows.Controls.InternalWindow.WindowHostBase.OnDragDelta(Point globalMousePosition, Rect initialRect, Rect destinationRect, Boolean isResize) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\Navigation\Window\InternalWindow\WindowHostBase.cs:line 85
at Telerik.Windows.Controls.InternalWindow.ChromelessWindowHelper.OnWindowPositionUpdating(Rect windowPosition) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\Navigation\Window\InternalWindow\WindowChrome\ChromelessWindowHelper.cs:line 350
at Telerik.Windows.Controls.InternalWindow.ChromelessWindowHelper.HandleMoving(IntPtr hwnd, IntPtr wParam, IntPtr lParam, Boolean& handled) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\Navigation\Window\InternalWindow\WindowChrome\ChromelessWindowHelper.cs:line 551
at Telerik.Windows.Controls.InternalWindow.ChromelessWindowHelper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\Navigation\Window\InternalWindow\WindowChrome\ChromelessWindowHelper.cs:line 857
at System.Windows.Interop.HwndSource.PublicHooksFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
InnerException: