Hi,

I've got an application that is randomly crashing and it seems to be something with the xaml.

See below for the stack trace from the application - it doesn't seem to always happen. It's using implicit themes, I can't remember which one but its a mobile version. Is their a problem with my app or is it the xaml?

FATAL 2020-05-12 08:05:56,893 App                    UnhandledException - System.Windows.Markup.XamlParseException: 'Provide value on 'System.Windows.Markup.StaticResourceHolder' threw an exception.' Line number '4275' and line position '35'. ---> System.Exception: Cannot find resource named 'ToolTipStyle'. Resource names are case sensitive.
   at System.Windows.StaticResourceExtension.ProvideValueInternal(IServiceProvider serviceProvider, Boolean allowDeferredReference)
   at System.Windows.StaticResourceExtension.ProvideValue(IServiceProvider serviceProvider)
   at MS.Internal.Xaml.Runtime.ClrObjectRuntime.CallProvideValue(MarkupExtension me, IServiceProvider serviceProvider)
   --- End of inner exception stack trace ---
   at System.Windows.Markup.WpfXamlLoader.Load(XamlReader xamlReader, IXamlObjectWriterFactory writerFactory, Boolean skipJournaledProperties, Object rootObject, XamlObjectWriterSettings settings, Uri baseUri)
   at System.Windows.Markup.WpfXamlLoader.LoadDeferredContent(XamlReader xamlReader, IXamlObjectWriterFactory writerFactory, Boolean skipJournaledProperties, Object rootObject, XamlObjectWriterSettings parentSettings, Uri baseUri)
   at System.Windows.ResourceDictionary.CreateObject(KeyRecord key)
   at System.Windows.ResourceDictionary.OnGettingValue(Object key, Object& value, Boolean& canCache)
   at System.Windows.ResourceDictionary.OnGettingValuePrivate(Object key, Object& value, Boolean& canCache)
   at System.Windows.ResourceDictionary.GetValueWithoutLock(Object key, Boolean& canCache)
   at System.Windows.ResourceDictionary.GetValue(Object key, Boolean& canCache)
   at System.Windows.ResourceDictionary.GetValueWithoutLock(Object key, Boolean& canCache)
   at System.Windows.ResourceDictionary.GetValue(Object key, Boolean& canCache)
   at System.Windows.ResourceDictionary.GetValueWithoutLock(Object key, Boolean& canCache)
   at System.Windows.ResourceDictionary.GetValue(Object key, Boolean& canCache)
   at System.Windows.ResourceDictionary.FetchResource(Object resourceKey, Boolean allowDeferredResourceReference, Boolean mustReturnDeferredResourceReference, Boolean canCacheAsThemeResource, Boolean& canCache)
   at System.Windows.FrameworkElement.FindResourceInternal(FrameworkElement fe, FrameworkContentElement fce, DependencyProperty dp, Object resourceKey, Object unlinkedParent, Boolean allowDeferredResourceReference, Boolean mustReturnDeferredResourceReference, DependencyObject boundaryElement, Boolean isImplicitStyleLookup, Object& source)
   at System.Windows.FrameworkElement.FindImplicitStyleResource(FrameworkElement fe, Object resourceKey, Object& source)
   at System.Windows.FrameworkElement.GetRawValue(DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry& entry)
   at System.Windows.FrameworkElement.EvaluateBaseValueCore(DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry& newEntry)
   at System.Windows.DependencyObject.EvaluateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry newEntry, OperationType operationType)
   at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty dp, Boolean preserveCurrentValue)
   at System.Windows.FrameworkElement.UpdateStyleProperty()
   at System.Windows.FrameworkElement.OnInitialized(EventArgs e)
   at Telerik.Windows.Controls.ScreenTip.OnInitialized(EventArgs e)
   at System.Windows.FrameworkElement.TryFireInitialized()
   at System.Windows.FrameworkElement.ChangeLogicalParent(DependencyObject newParent)
   at System.Windows.FrameworkElement.AddLogicalChild(Object child)
   at System.Windows.Controls.Primitives.Popup.OnChildChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
   at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
   at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at System.Windows.Controls.Primitives.Popup.CreateRootPopupInternal(Popup popup, UIElement child, Boolean bindTreatMousePlacementAsBottomProperty)
   at System.Windows.Controls.ToolTip.HookupParentPopup()
   at System.Windows.Controls.ToolTip.OnIsOpenChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
   at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
   at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at System.Windows.Controls.PopupControlService.RaiseToolTipOpeningEvent(Boolean fromKeyboard)
   at System.Windows.Controls.PopupControlService.<>c__DisplayClass8_0.<InspectElementForToolTip>b__0(Object s, EventArgs e)
   at System.Windows.Threading.DispatcherTimer.FireTick(Object unused)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

Hello!

Tell me how to redraw the graph without blinking.

Now after SetValue() "No series added" is displayed first, then a new series.

Thanks.

Hallo,

I use DragDropManager to drag & drop items between RadListBoxe A and RadListBox B. It works good. But it will cause the program crashed when I try following:

Because the RadListBox B is not allowed to have TWO items on the same time, so existing item must be "swap" by new one. I remove the existing item and replaced by new one via code. It works good only when it drops under existing item. And, when I drop the new item before the existing item, the program will be crashed by NullReferenceException,  I found the exception caused by  DragDropBehaviour<TSTate> class. See screenshots provided.

Please, solutions, urgent.

Tam

Hello Telerik Team,

How can I resize both thumbs in the slider?
I added a picture, where you an see it better.

I tried with changing width of ThumbStyle, which causes troubles. I cant move the bar completely to the left or right.

Thanks.

Hello,

Is there a way to remove only the 'AND' section in the grid view`s column filter?

Hi:

   1.  How can I create a TOC with links that can go to its source section when I use Ctrl+click?

   2.  How can I create a TOC that ignores the previous pages (for example  : the first three pages)?

   3.  why I created a TOC ,when the document exported to a pdf file, something changed(see the attach files )

I am not sure this is the place, but it's driving me crazy.

In my xaml code, when I click the code for RadComboBox, I get a popup (see attached image).

If I click the popup I am sent to the design view (see attached). When I click the xaml tab I am redirected back to the design view after seeing the xaml code for a split second.

Does anyone know waht it might be that is causing this behavior?

Thanks in advance!

Hi,

we are following all the tips from https://docs.telerik.com/devtools/wpf/controls/radgridview/performance/tips-tricks but we only get a poor performance when filling the grid.

Do you have any further tips for me? I can send a sample app to showcase our problem.

Greetings

Andre