I've got a WPF C# application in which I have many RadComboBoxes.  Sometimes when  I fire it up and click on one of the combo boxes, my entire application hangs.  Sometimes it does not.  It *seems* that if I wait long enough before clicking the dropdown, it doesn't happen.  And I have a lot of other initialization going on so that would make some sense.  But I can't figure out howBut it has happened in both release and debug mode.

When I break into the debugger I see the main thread all locked up in combase.dll.  I have attempted to attach the complete stack track to this messsage but since it won't let me attach a txt file I couldn't get a snapshot of the whole thing.  So I also pasted the entire stack trace in text form at the bottom of this message.

None of the other threads in the entire application is doing anything.  They don't have anything locked that I can see. I went through every single one. Not a single one of them has a stack trace more then 4 or 5 calls deep.  They're all at the start of their thread processes.

The action (in the main thread stack track) appears to start with Telerik RadToggleButton.OnClick.  Here is the line in the main thread stack trace

     Telerik.Windows.Controls.dll!Telerik.Windows.Controls.RadToggleButton.OnClick()UnknownNo symbols loaded.


I don't know where to go with this.  I cannot make it happen in a simple, standalone app.  My app has background work going on but, as I said, none of the threads are doing anything.   

Any idea where to go from here?

The Stack Trace:

win32u.dll!NtUserMsgWaitForMultipleObjectsEx()UnknownSymbols loaded.
user32.dll!RealMsgWaitForMultipleObjectsEx()UnknownSymbols loaded.
combase.dll!CCliModalLoop::BlockFn(void * * ahEvent=0x0000009e70bf9060, unsigned long cEvents=1, unsigned long * lpdwSignaled=0x0000009e70bf90a0)C++Symbols loaded.
combase.dll!ModalLoop(CSyncClientCall * pClientCall=0x000001b4c8f86a20)C++Symbols loaded.
combase.dll!ClassicSTAThreadDispatchCrossApartmentCall(tagRPCOLEMESSAGE * pMessage=0x0000009e70bf9ae0, OXIDEntry * pOXIDEntry, CSyncClientCall * pClientCall=0x000001b4c8f86a20)C++Symbols loaded.
[Inline Frame] combase.dll!CSyncClientCall::SwitchAptAndDispatchCall(tagRPCOLEMESSAGE * pMessage=0x0000009e70bf9ae0)C++Symbols loaded.
combase.dll!CSyncClientCall::SendReceive2(tagRPCOLEMESSAGE * pMessage=0x0000009e70bf9ae0, unsigned long * pstatus=0x0000009e70bf9778)C++Symbols loaded.
[Inline Frame] combase.dll!SyncClientCallRetryContext::SendReceiveWithRetry(tagRPCOLEMESSAGE *)C++Symbols loaded.
[Inline Frame] combase.dll!CSyncClientCall::SendReceiveInRetryContext(SyncClientCallRetryContext *)C++Symbols loaded.
combase.dll!ClassicSTAThreadSendReceive(CSyncClientCall * pClientCall=0x000001b4c8f86a20, tagRPCOLEMESSAGE * pMsg=0x0000009e70bf9ae0, unsigned long * pulStatus=0x0000009e70bf9778)C++Symbols loaded.
combase.dll!CSyncClientCall::SendReceive(tagRPCOLEMESSAGE * pMessage=0x0000009e70bf9ae0, unsigned long * pulStatus=0x0000009e70bf9778)C++Symbols loaded.
[Inline Frame] combase.dll!CClientChannel::SendReceive(tagRPCOLEMESSAGE *)C++Symbols loaded.
combase.dll!NdrExtpProxySendReceive(void * pThis=0x0000009e70bf9f20, _MIDL_STUB_MESSAGE * pStubMsg=0x0000009e70bf98f0)C++Symbols loaded.
rpcrt4.dll!NdrpClientCall3()UnknownSymbols loaded.
combase.dll!ObjectStublessClient(void * ParamAddress=0x0000009e70bf9f50, __int64 * FloatRegisters=0x0000009e70bf9f20, long Method)C++Symbols loaded.
combase.dll!ObjectStubless()UnknownSymbols loaded.
combase.dll!CObjectContext::InternalContextCallback(HRESULT(*)(void *) pfnCallback=0x00007fff83986700, void * pParam=0x0000000000000201, const _GUID & riid={...}, int iMethod=2, IUnknown * pUnk=0x0000000000000000)C++Symbols loaded.
combase.dll!CGIPTable::GetInterfaceFromGlobal(unsigned long dwCookie, const _GUID & riid={...}, void * * ppv=0x0000009e70bfa1d0)C++Symbols loaded.
[Inline Frame] combase.dll!GetInterfaceFromStdGlobal(unsigned long)C++Symbols loaded.
combase.dll!CProcessActivator::GetApartmentActivator(ActivationPropertiesIn * pInActProperties=0x0000009e70bfa720, ISystemActivator * * ppActivator=0x0000009e70bfa1d0)C++Symbols loaded.
combase.dll!CProcessActivator::CCICallback(unsigned long dwContext=0, IUnknown * pUnkOuter=0x0000000000000000, ActivationPropertiesIn * pActIn=0x0000009e70bfa720, IActivationPropertiesIn * pInActProperties=0x0000009e70bfa958, IActivationPropertiesOut * * ppOutActProperties=0x0000009e70bfb210)C++Symbols loaded.
combase.dll!CProcessActivator::AttemptActivation(ActivationPropertiesIn * pActIn, IUnknown * pUnkOuter, IActivationPropertiesIn * pInActProperties, IActivationPropertiesOut * * ppOutActProperties=0x0000009e70bfb210, HRESULT(CProcessActivator::*)(unsigned long, IUnknown *, ActivationPropertiesIn *, IActivationPropertiesIn *, IActivationPropertiesOut * *) pfnCtxActCallback=0x00007fff839ca400, unsigned long dwContext=1)C++Symbols loaded.
combase.dll!CProcessActivator::ActivateByContext(ActivationPropertiesIn * pActIn=0x0000009e70bfa720, IUnknown * pUnkOuter=0x0000000000000000, IActivationPropertiesIn * pInActProperties=0x0000009e70bfa958, IActivationPropertiesOut * * ppOutActProperties=0x0000009e70bfb210, HRESULT(CProcessActivator::*)(unsigned long, IUnknown *, ActivationPropertiesIn *, IActivationPropertiesIn *, IActivationPropertiesOut * *) pfnCtxActCallback=0x00007fff839ca400)C++Symbols loaded.
combase.dll!CProcessActivator::CreateInstance(IUnknown * pUnkOuter=0x0000000000000000, IActivationPropertiesIn * pInActProperties=0x0000009e70bfa958, IActivationPropertiesOut * * ppOutActProperties=0x0000009e70bfb210)C++Symbols loaded.
combase.dll!ActivationPropertiesIn::DelegateCreateInstance(IUnknown * pUnkOuter=0x0000000000000000, IActivationPropertiesOut * * ppActPropsOut=0x0000009e70bfb210)C++Symbols loaded.
combase.dll!CClientContextActivator::CreateInstance(IUnknown * pUnkOuter=0x0000000000000000, IActivationPropertiesIn * pInActProperties=0x0000009e70bfa958, IActivationPropertiesOut * * ppOutActProperties=0x0000009e70bfb210)C++Symbols loaded.
combase.dll!ActivationPropertiesIn::DelegateCreateInstance(IUnknown * pUnkOuter=0x0000000000000000, IActivationPropertiesOut * * ppActPropsOut=0x0000009e70bfb210)C++Symbols loaded.
combase.dll!ICoCreateInstanceEx(const _GUID & OriginalClsid, IUnknown * punkOuter=0x0000000000000000, unsigned long dwClsCtx=1, _COSERVERINFO * pServerInfo=0x0000000000000000, unsigned long dwCount=1, unsigned long dwActvFlags=16384, tagMULTI_QI * pResults=0x0000009e70bfb6f0, ActivationPropertiesIn * pActIn=0x0000009e70bfa720)C++Symbols loaded.
combase.dll!CComActivator::DoCreateInstance(const _GUID & Clsid={...}, IUnknown * punkOuter=0x0000000000000000, unsigned long dwClsCtx=1, _COSERVERINFO * pServerInfo=0x0000000000000000, unsigned long dwCount=1, tagMULTI_QI * pResults=0x0000009e70bfb6f0, ActivationPropertiesIn * pActIn=0x0000000000000000)C++Symbols loaded.
[Inline Frame] combase.dll!CoCreateInstanceEx(const _GUID &)C++Symbols loaded.
combase.dll!CoCreateInstance(const _GUID & rclsid={...}, IUnknown * pUnkOuter=0x0000000000000000, unsigned long dwContext=1, const _GUID & riid, void * * ppv=0x0000009e70bfb798)C++Symbols loaded.
UIAutomationCore.dll!BlockingCoreDispatcher::CreateAndRegisterBlockingCore(void)UnknownSymbols loaded.
UIAutomationCore.dll!BlockingCoreDispatcher::FinalConstruct(void)UnknownSymbols loaded.
UIAutomationCore.dll!CUIAutomation7::FinalConstruct(void)UnknownSymbols loaded.
UIAutomationCore.dll!ATL::CComObject<class CUIAutomation7>::CreateInstance(class ATL::CComObject<class CUIAutomation7> * *)UnknownSymbols loaded.
UIAutomationCore.dll!UiaReturnRawElementProvider()UnknownSymbols loaded.
UIAutomationProvider.ni.dll!00007fff4f60a933()UnknownNo symbols loaded.
[Managed to Native Transition]Annotated Frame
UIAutomationProvider.dll!System.Windows.Automation.Provider.AutomationInteropProvider.ReturnRawElementProvider(System.IntPtr hwnd, System.IntPtr wParam, System.IntPtr lParam, System.Windows.Automation.Provider.IRawElementProviderSimple el)UnknownSymbols loaded.
PresentationFramework.dll!System.Windows.Controls.Primitives.Popup.PopupSecurityHelper.ForceMsaaToUiaBridge(System.Windows.Controls.Primitives.PopupRoot popupRoot)UnknownSymbols loaded.
PresentationFramework.dll!System.Windows.Controls.Primitives.Popup.CreateWindow(bool asyncCall)UnknownSymbols loaded.
PresentationFramework.dll!System.Windows.Controls.Primitives.Popup.OnIsOpenChanged(System.Windows.DependencyObject d, System.Windows.DependencyPropertyChangedEventArgs e)UnknownSymbols loaded.
WindowsBase.dll!System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs e)UnknownSymbols loaded.
PresentationFramework.dll!System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs e)UnknownSymbols loaded.
WindowsBase.dll!System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs args)UnknownSymbols loaded.
WindowsBase.dll!System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex entryIndex, System.Windows.DependencyProperty dp = {System.Windows.DependencyProperty}, System.Windows.PropertyMetadata metadata, System.Windows.EffectiveValueEntry oldEntry, ref System.Windows.EffectiveValueEntry newEntry = {System.Windows.EffectiveValueEntry}, bool coerceWithDeferredReference, bool coerceWithCurrentValue, System.Windows.OperationType operationType)UnknownSymbols loaded.
WindowsBase.dll!System.Windows.DependencyObject.SetValueCommon(System.Windows.DependencyProperty dp, object value, System.Windows.PropertyMetadata metadata, bool coerceWithDeferredReference, bool coerceWithCurrentValue, System.Windows.OperationType operationType, bool isInternal)UnknownSymbols loaded.
WindowsBase.dll!System.Windows.DependencyObject.SetValue(System.Windows.DependencyProperty dp, object value)UnknownSymbols loaded.
Telerik.Windows.Controls.dll!Telerik.Windows.Controls.AutoClosePopupWrapper.IsOpen.set(bool value)UnknownNo symbols loaded.
Telerik.Windows.Controls.Input.dll!Telerik.Windows.Controls.RadComboBox.OpenDropDownInternal()UnknownNo symbols loaded.
Telerik.Windows.Controls.Input.dll!Telerik.Windows.Controls.RadComboBox.OnIsDropDownOpenChanged(bool oldValue, bool newValue)UnknownNo symbols loaded.
Telerik.Windows.Controls.Input.dll!Telerik.Windows.Controls.RadComboBox.OnIsDropDownOpenChanged(System.Windows.DependencyObject sender, System.Windows.DependencyPropertyChangedEventArgs e)UnknownNo symbols loaded.
WindowsBase.dll!System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs e)UnknownSymbols loaded.
PresentationFramework.dll!System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs e)UnknownSymbols loaded.
WindowsBase.dll!System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs args)UnknownSymbols loaded.
WindowsBase.dll!System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex entryIndex, System.Windows.DependencyProperty dp = {System.Windows.DependencyProperty}, System.Windows.PropertyMetadata metadata, System.Windows.EffectiveValueEntry oldEntry, ref System.Windows.EffectiveValueEntry newEntry = {System.Windows.EffectiveValueEntry}, bool coerceWithDeferredReference, bool coerceWithCurrentValue, System.Windows.OperationType operationType)UnknownSymbols loaded.
WindowsBase.dll!System.Windows.DependencyObject.SetValueCommon(System.Windows.DependencyProperty dp, object value, System.Windows.PropertyMetadata metadata, bool coerceWithDeferredReference, bool coerceWithCurrentValue, System.Windows.OperationType operationType, bool isInternal)UnknownSymbols loaded.
WindowsBase.dll!System.Windows.DependencyObject.SetValue(System.Windows.DependencyProperty dp, object value)UnknownSymbols loaded.
Telerik.Windows.Controls.Input.dll!Telerik.Windows.Controls.RadComboBox.DropDownButtonClick(object sender, System.Windows.RoutedEventArgs e)UnknownNo symbols loaded.
PresentationCore.dll!System.Windows.EventRoute.InvokeHandlersImpl(object source = {Telerik.Windows.Controls.RadToggleButton}, System.Windows.RoutedEventArgs args = {System.Windows.RoutedEventArgs}, bool reRaised = false)UnknownSymbols loaded.
PresentationCore.dll!System.Windows.UIElement.RaiseEventImpl(System.Windows.DependencyObject sender = {Telerik.Windows.Controls.RadToggleButton}, System.Windows.RoutedEventArgs args = {System.Windows.RoutedEventArgs})UnknownSymbols loaded.
PresentationFramework.dll!System.Windows.Controls.Primitives.ButtonBase.OnClick()UnknownSymbols loaded.
Telerik.Windows.Controls.dll!Telerik.Windows.Controls.RadToggleButton.OnClick()UnknownNo symbols loaded.
PresentationFramework.dll!System.Windows.Controls.Primitives.ButtonBase.OnMouseLeftButtonDown(System.Windows.Input.MouseButtonEventArgs e)UnknownSymbols loaded.
PresentationCore.dll!System.Windows.RoutedEventArgs.InvokeHandler(System.Delegate handler, object target)UnknownSymbols loaded.
PresentationCore.dll!System.Windows.RoutedEventHandlerInfo.InvokeHandler(object target, System.Windows.RoutedEventArgs routedEventArgs)UnknownSymbols loaded.
PresentationCore.dll!System.Windows.EventRoute.InvokeHandlersImpl(object source = {Telerik.Windows.Controls.RadToggleButton}, System.Windows.RoutedEventArgs args = {System.Windows.Input.MouseButtonEventArgs}, bool reRaised = true)UnknownSymbols loaded.
PresentationCore.dll!System.Windows.UIElement.ReRaiseEventAs(System.Windows.DependencyObject sender = {Telerik.Windows.Controls.RadToggleButton}, System.Windows.RoutedEventArgs args = {System.Windows.Input.MouseButtonEventArgs}, System.Windows.RoutedEvent newEvent)UnknownSymbols loaded.
PresentationCore.dll!System.Windows.UIElement.OnMouseDownThunk(object sender, System.Windows.Input.MouseButtonEventArgs e)UnknownSymbols loaded.
PresentationCore.dll!System.Windows.RoutedEventArgs.InvokeHandler(System.Delegate handler, object target)UnknownSymbols loaded.
PresentationCore.dll!System.Windows.RoutedEventHandlerInfo.InvokeHandler(object target, System.Windows.RoutedEventArgs routedEventArgs)UnknownSymbols loaded.
PresentationCore.dll!System.Windows.EventRoute.InvokeHandlersImpl(object source = {System.Windows.Controls.TextBlock}, System.Windows.RoutedEventArgs args = {System.Windows.Input.MouseButtonEventArgs}, bool reRaised = false)UnknownSymbols loaded.
PresentationCore.dll!System.Windows.UIElement.RaiseEventImpl(System.Windows.DependencyObject sender = {System.Windows.Controls.TextBlock}, System.Windows.RoutedEventArgs args = {System.Windows.Input.MouseButtonEventArgs})UnknownSymbols loaded.
PresentationCore.dll!System.Windows.UIElement.RaiseTrustedEvent(System.Windows.RoutedEventArgs args = {System.Windows.Input.MouseButtonEventArgs})UnknownSymbols loaded.
PresentationCore.dll!System.Windows.Input.InputManager.ProcessStagingArea()UnknownSymbols loaded.
PresentationCore.dll!System.Windows.Input.InputManager.ProcessInput(System.Windows.Input.InputEventArgs input)UnknownSymbols loaded.
PresentationCore.dll!System.Windows.Input.InputProviderSite.ReportInput(System.Windows.Input.InputReport inputReport)UnknownSymbols loaded.
PresentationCore.dll!System.Windows.Interop.HwndMouseInputProvider.ReportInput(System.IntPtr hwnd, System.Windows.Input.InputMode mode, int timestamp, System.Windows.Input.RawMouseActions actions, int x, int y, int wheel)UnknownSymbols loaded.
PresentationCore.dll!System.Windows.Interop.HwndMouseInputProvider.FilterMessage(System.IntPtr hwnd = 0x0000000000901c48, MS.Internal.Interop.WindowMessage msg = WM_LBUTTONDOWN, System.IntPtr wParam = 0x0000000000000001, System.IntPtr lParam = 0x00000000019d01ee, ref bool handled = false)UnknownSymbols loaded.
PresentationCore.dll!System.Windows.Interop.HwndSource.InputFilterMessage(System.IntPtr hwnd = 0x0000000000901c48, int msg, System.IntPtr wParam = 0x0000000000000001, System.IntPtr lParam = 0x00000000019d01ee, ref bool handled = false)UnknownSymbols loaded.
WindowsBase.dll!MS.Win32.HwndWrapper.WndProc(System.IntPtr hwnd = 0x0000000000901c48, int msg, System.IntPtr wParam = 0x0000000000000001, System.IntPtr lParam = 0x00000000019d01ee, ref bool handled = false)UnknownSymbols loaded.
WindowsBase.dll!MS.Win32.HwndSubclass.DispatcherCallbackOperation(object o)UnknownSymbols loaded.
WindowsBase.dll!System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate callback, object args, int numArgs)UnknownSymbols loaded.
WindowsBase.dll!System.Windows.Threading.ExceptionWrapper.TryCatchWhen(object source = {System.Windows.Threading.Dispatcher}, System.Delegate callback, object args, int numArgs, System.Delegate catchHandler = null)UnknownSymbols loaded.
WindowsBase.dll!System.Windows.Threading.Dispatcher.LegacyInvokeImpl(System.Windows.Threading.DispatcherPriority priority, System.TimeSpan timeout, System.Delegate method, object args, int numArgs)UnknownSymbols loaded.
WindowsBase.dll!MS.Win32.HwndSubclass.SubclassWndProc(System.IntPtr hwnd = 0x0000000000901c48, int msg, System.IntPtr wParam = 0x0000000000000001, System.IntPtr lParam = 0x00000000019d01ee)UnknownSymbols loaded.
[Native to Managed Transition]Annotated Frame
user32.dll!UserCallWinProcCheckWow()UnknownSymbols loaded.
user32.dll!DispatchMessageWorker()UnknownSymbols loaded.
WindowsBase.ni.dll!00007fff1d2bbd98()UnknownNo symbols loaded.
[Managed to Native Transition]Annotated Frame
WindowsBase.dll!System.Windows.Threading.Dispatcher.PushFrameImpl(System.Windows.Threading.DispatcherFrame frame = {System.Windows.Threading.DispatcherFrame})UnknownSymbols loaded.
PresentationFramework.dll!System.Windows.Application.RunDispatcher(object ignore)UnknownSymbols loaded.
PresentationFramework.dll!System.Windows.Application.RunInternal(System.Windows.Window window)UnknownSymbols loaded.
GelSight.Mobile.exe!GelSight.Mobile.App.Main()UnknownSymbols loaded.
[Native to Managed Transition]Annotated Frame
mscoreei.dll!_CorExeMain()UnknownSymbols loaded.
mscoree.dll!_CorExeMain_Exported()UnknownSymbols loaded.
kernel32.dll!BaseThreadInitThunk()UnknownSymbols loaded.
ntdll.dll!RtlUserThreadStart()UnknownSymbols loaded.

In my project, I want to modify the XAML template of the GridView (Literally I only need to change the colors of the Windows8TouchPallete, but I want to do it in XAML not code behind). So, I extracted the XAML template from the Themes.Implicit (I'm using the NoXAML binaries) and included the template as a resource.

The XAML designer shows an error "ArgumentNullException: Key cannot be null. Parameter name: key" when ever I build the project.

I have created a VERY SIMPLE project that reproduces the issue, zipped it up and uploaded it to Dropbox if you would like to take a look at the issue.

https://www.dropbox.com/s/wk94vf6a9k3mz54/TestDataGridTheme.zip?dl=0

Any help is appreciated. Alternatively, if there is a way to modify the Windows8TouchPallete from XAML (in an external XAML file is preferred) then, I would rather do that.

I am having an issue where on non Win10 clients the popups are completely transparent which leads to unreadable lists in the column filter control.  This is my main area of concern.  Is there anyway to override the background of that control, and if so can you provide an example?

Thanks!

Hi; 

I had try to change a text "Close" on close button RadDateTimePicker without success. First i used Blend , but i get som error and second i tried to add Culture to the local language. 

What can i do more.

Salutation

Muheto

Hi All,

How can I prevent RadMaskedTextInput from wrapping onto a second line if the text is too long to fit in the space available. What I would like is for the text to scroll horizontally.

Many thanks

Hi Telerik Team,

I have a requirement in which I need to export the whole gantt area including non visible area (hidden inside scrollviewer) in to image. With the normal scrollviewer I could easily export the contents even in non visible area by passing the content of the scrollviewer. But RadGanttView doesn't have scrollviewer, instead it has two scrollbars. Kindly provide me the solution to export all gantt tasks including in non visible area to image.

Thanks and Regards,

Muhammad Azhar Shah

MSC Technology

Hi,

I'm buidling a window that displays a list of countries by continent. It consists of two elements:

• Combo box: displays a list of continents
• Grid view: displays a list of countries belonging to the selected continent

These are the requirements:

• Filter grid with combo box:

1. Filter rows based on combo box selection

• Keyboard support on grid:

1. Keep focus
2. Select first row by default
3. Navigate through rows with key up/down and page up/down
4. Open pop-up on Enter

• Mouse support on grid:

1. Open pop-up on click

• Refresh grid:

1. Periodically using a timer
2. After pop-up closed

I used the following technologies:

• C#
• WPF
• MVVM
• Telerik UI for WPF
• Caliburn.Micro

The problem I'm experiencing:

PreviewKeyDown on row not working after refresh grid.

• HOW: The ViewModel sets a new value for the bound ItemsSource property, and resets the bound SelectedItem property if possible.
• WHEN: Each time the grid receives new data:

1. initially
2. pop-up closed (after click or enter on row)
3. after periodic refresh

• RESULT:

1. PreviewKeyDown on GridRow is not handled
2. underlining of first cell disappears (I'm using the Material theme)
3. selection style however is visible

• WORKAROUND:

1. use keyboard arrows to change selected row (strange: arrows don't work, enter doesn't).

I've attached two screenshots: one regular, and the other one is showing the problem.

You can download my Visual Studio project following this WeTransfer link.

Please let me know if you need any further information.

The snippet below is from an application for a machine shop which has a rather utilitarian menu.... I've been asked to add hot keys to some of the items; one of the menu items (as seen in the code below) I need to add the F6 key as a hotkey (note the idendical Command for clicking vs hotkey)...   clicking on it works as desired, but the hotkey has seemingly no effect whatsoever.

What am I missing, or otherwise doing wrong? Thanks in advance for your help.

        <telerik:RadMenuItem Name="ToolsMenu" Header="Tools">
            <telerik:RadMenuItem Name="ToolsUseFinishLocationMenuItem" Header="Use Finish Location For Bin" Command="{Binding ToolsUseFinishLocationForBinCommand}" InputGestureText="F6">
                <telerik:RadMenuItem.InputBindings>
                    <KeyBinding Key="F6" Command="{Binding ToolsUseFinishLocationForBinCommand}" />
                </telerik:RadMenuItem.InputBindings>
            </telerik:RadMenuItem>
        </telerik:RadMenuItem>

Hello,

I tried to launch the WPF Demos, but receive this error:

INFO ZUR PLATTFORMVERSION
Windows : 10.0.16299.0 (Win32NT)
Common Language Runtime : 4.0.30319.42000
System.Deployment.dll : 4.7.2556.0 built by: NET471REL1
clr.dll : 4.7.2600.0 built by: NET471REL1LAST
dfdll.dll : 4.7.2556.0 built by: NET471REL1
dfshim.dll : 10.0.16299.15 (WinBuild.160101.0800)

QUELLEN
Bereitstellungs-URL : file:///C:/Users/bernhard/Dropbox/Projekte/base64-wpf/packages/Telerik%20UI%20for%20WPF/DEMO/WPF%20Demos.application

IDENTITÄTEN
Bereitstellungsidentität : WPF Demos.application, Version=2018.1.116.40, Culture=neutral, PublicKeyToken=e853e47715c765ec, processorArchitecture=x86

ZUSAMMENFASSUNG FÜR ANWENDUNG
* Installierbare Anwendung.

FEHLERZUSAMMENFASSUNG
Es folgt eine Zusammenfassung der Fehler. Details zu diesen Fehlern werden später im Protokoll aufgelistet.
* Die Aktivierung von C:\Users\bernhard\Dropbox\Projekte\base64-wpf\packages\Telerik UI for WPF\DEMO\WPF Demos.application führte zu einer Ausnahme. Folgende Fehlermeldungen wurden entdeckt:
+ 'file:///C:/Users/bernhard/Dropbox/Projekte/base64-wpf/packages/Telerik UI for WPF/DEMO/Application Files/WPF Demos_2018_1_116_40/WPF Demos.exe.manifest' konnte nicht gedownloadet werden.
+ Ein Teil des Pfades "C:\Users\bernhard\Dropbox\Projekte\base64-wpf\packages\Telerik UI for WPF\DEMO\Application Files\WPF Demos_2018_1_116_40\WPF Demos.exe.manifest" konnte nicht gefunden werden.
+ Ein Teil des Pfades "C:\Users\bernhard\Dropbox\Projekte\base64-wpf\packages\Telerik UI for WPF\DEMO\Application Files\WPF Demos_2018_1_116_40\WPF Demos.exe.manifest" konnte nicht gefunden werden.
+ Ein Teil des Pfades "C:\Users\bernhard\Dropbox\Projekte\base64-wpf\packages\Telerik UI for WPF\DEMO\Application Files\WPF Demos_2018_1_116_40\WPF Demos.exe.manifest" konnte nicht gefunden werden.

FEHLERZUSAMMENFASSUNG FÜR DIE SPEICHERTRANSAKTION DER KOMPONENTE
Es wurde kein Transaktionsfehler festgestellt.

WARNUNGEN
Während dieses Vorgangs gab es keine Warnungen.

FORTSCHRITTSSTATUS DES VORGANGS
* [29.01.2018 07:31:20] : Die Aktivierung von C:\Users\bernhard\Dropbox\Projekte\base64-wpf\packages\Telerik UI for WPF\DEMO\WPF Demos.application wurde gestartet.
* [29.01.2018 07:31:20] : Das Verarbeiten des Bereitstellungsmanifestes wurde erfolgreich abgeschlossen.
* [29.01.2018 07:31:20] : Die Installation der Anwendung wurde gestartet.

FEHLERDETAILS
Folgende Fehler wurden bei diesem Vorgang entdeckt.
* [29.01.2018 07:31:20] System.Deployment.Application.DeploymentDownloadException (unbekannter Untertyp)
- 'file:///C:/Users/bernhard/Dropbox/Projekte/base64-wpf/packages/Telerik UI for WPF/DEMO/Application Files/WPF Demos_2018_1_116_40/WPF Demos.exe.manifest' konnte nicht gedownloadet werden.
- Quelle: System.Deployment
- Stapelüberwachung:
bei System.Deployment.Application.SystemNetDownloader.DownloadSingleFile(DownloadQueueItem next)
bei System.Deployment.Application.SystemNetDownloader.DownloadAllFiles()
bei System.Deployment.Application.FileDownloader.Download(SubscriptionState subState, X509Certificate2 clientCertificate)
bei System.Deployment.Application.DownloadManager.DownloadManifestAsRawFile(Uri& sourceUri, String targetPath, IDownloadNotification notification, DownloadOptions options, ServerInformation& serverInformation)
bei System.Deployment.Application.DownloadManager.DownloadApplicationManifest(AssemblyManifest deploymentManifest, String targetDir, Uri deploymentUri, IDownloadNotification notification, DownloadOptions options, Uri& appSourceUri, String& appManifestPath)
bei System.Deployment.Application.ApplicationActivator.DownloadApplication(SubscriptionState subState, ActivationDescription actDesc, Int64 transactionId, TempDirectory& downloadTemp)
bei System.Deployment.Application.ApplicationActivator.InstallApplication(SubscriptionState& subState, ActivationDescription actDesc)
bei System.Deployment.Application.ApplicationActivator.PerformDeploymentActivation(Uri activationUri, Boolean isShortcut, String textualSubId, String deploymentProviderUrlFromExtension, BrowserSettings browserSettings, String& errorPageUrl, Uri& deploymentUri)
bei System.Deployment.Application.ApplicationActivator.PerformDeploymentActivationWithRetry(Uri activationUri, Boolean isShortcut, String textualSubId, String deploymentProviderUrlFromExtension, BrowserSettings browserSettings, String& errorPageUrl)
--- Ende der Stapelüberwachung vom vorhergehenden Ort, an dem die Ausnahme ausgelöst wurde ---
bei System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
bei System.Deployment.Application.ApplicationActivator.PerformDeploymentActivationWithRetry(Uri activationUri, Boolean isShortcut, String textualSubId, String deploymentProviderUrlFromExtension, BrowserSettings browserSettings, String& errorPageUrl)
bei System.Deployment.Application.ApplicationActivator.ActivateDeploymentWorker(Object state)
--- Interne Ausnahme ---
System.Net.WebException
- Ein Teil des Pfades "C:\Users\bernhard\Dropbox\Projekte\base64-wpf\packages\Telerik UI for WPF\DEMO\Application Files\WPF Demos_2018_1_116_40\WPF Demos.exe.manifest" konnte nicht gefunden werden.
- Quelle: System
- Stapelüberwachung:
bei System.Net.FileWebRequest.EndGetResponse(IAsyncResult asyncResult)
bei System.Deployment.Application.SystemNetDownloader.DownloadSingleFile(DownloadQueueItem next)
--- Interne Ausnahme ---
System.Net.WebException
- Ein Teil des Pfades "C:\Users\bernhard\Dropbox\Projekte\base64-wpf\packages\Telerik UI for WPF\DEMO\Application Files\WPF Demos_2018_1_116_40\WPF Demos.exe.manifest" konnte nicht gefunden werden.
- Quelle: System
- Stapelüberwachung:
bei System.Net.FileWebResponse..ctor(FileWebRequest request, Uri uri, FileAccess access, Boolean asyncHint)
bei System.Net.FileWebRequest.GetResponseCallback(Object state)
--- Interne Ausnahme ---
System.IO.DirectoryNotFoundException
- Ein Teil des Pfades "C:\Users\bernhard\Dropbox\Projekte\base64-wpf\packages\Telerik UI for WPF\DEMO\Application Files\WPF Demos_2018_1_116_40\WPF Demos.exe.manifest" konnte nicht gefunden werden.
- Quelle: mscorlib
- Stapelüberwachung:
bei System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
bei System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)
bei System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options, String msgPath, Boolean bFromProxy)
bei System.Net.FileWebStream..ctor(FileWebRequest request, String path, FileMode mode, FileAccess access, FileShare sharing, Int32 length, Boolean async)
bei System.Net.FileWebResponse..ctor(FileWebRequest request, Uri uri, FileAccess access, Boolean asyncHint)

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