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System.ArgumentException: An item with the same key has already been added. Key: [0, Avalonia.Controls.Generators.ItemContainerInfo]
See original GitHub issueReport
System.ArgumentException: An item with the same key has already been added. Key: [0, Avalonia.Controls.Generators.ItemContainerInfo]
at System.Collections.Generic.TreeSet`1.AddIfNotPresent(T item)
at Avalonia.Controls.Generators.ItemContainerGenerator.Materialize(Int32 index, Object item) in /_/src/Avalonia.Controls/Generators/ItemContainerGenerator.cs:line 61
at Avalonia.Controls.Presenters.ItemVirtualizerNone.AddContainers(Int32 index, IEnumerable items) in /_/src/Avalonia.Controls/Presenters/ItemVirtualizerNone.cs:line 85
at Avalonia.Controls.Presenters.ItemVirtualizerNone..ctor(ItemsPresenter owner) in /_/src/Avalonia.Controls/Presenters/ItemVirtualizerNone.cs:line 17
at Avalonia.Controls.Presenters.ItemVirtualizer.Create(ItemsPresenter owner) in /_/src/Avalonia.Controls/Presenters/ItemVirtualizer.cs:line 203
at Avalonia.Controls.Presenters.ItemsPresenter.PanelCreated(IPanel panel) in /_/src/Avalonia.Controls/Presenters/ItemsPresenter.cs:line 150
at Avalonia.Controls.Presenters.ItemsPresenterBase.CreatePanel() in /_/src/Avalonia.Controls/Presenters/ItemsPresenterBase.cs:line 250
at Avalonia.Controls.Presenters.ItemsPresenterBase.ApplyTemplate() in /_/src/Avalonia.Controls/Presenters/ItemsPresenterBase.cs:line 145
at Avalonia.Layout.Layoutable.MeasureCore(Size availableSize) in /_/src/Avalonia.Layout/Layoutable.cs:line 549
at Avalonia.Layout.Layoutable.Measure(Size availableSize) in /_/src/Avalonia.Layout/Layoutable.cs:line 386
at Avalonia.Controls.Presenters.ScrollContentPresenter.MeasureOverride(Size availableSize) in /_/src/Avalonia.Controls/Presenters/ScrollContentPresenter.cs:line 254
at Avalonia.Layout.Layoutable.MeasureCore(Size availableSize) in /_/src/Avalonia.Layout/Layoutable.cs:line 549
at Avalonia.Layout.Layoutable.Measure(Size availableSize) in /_/src/Avalonia.Layout/Layoutable.cs:line 386
at Avalonia.Controls.DockPanel.MeasureOverride(Size constraint) in /_/src/Avalonia.Controls/DockPanel.cs:line 91
at Avalonia.Layout.Layoutable.MeasureCore(Size availableSize) in /_/src/Avalonia.Layout/Layoutable.cs:line 549
at Avalonia.Layout.Layoutable.Measure(Size availableSize) in /_/src/Avalonia.Layout/Layoutable.cs:line 386
at Avalonia.Layout.Layoutable.MeasureOverride(Size availableSize) in /_/src/Avalonia.Layout/Layoutable.cs:line 613
at Avalonia.Layout.Layoutable.MeasureCore(Size availableSize) in /_/src/Avalonia.Layout/Layoutable.cs:line 549
at Avalonia.Layout.Layoutable.Measure(Size availableSize) in /_/src/Avalonia.Layout/Layoutable.cs:line 386
at Avalonia.Layout.LayoutHelper.MeasureChild(ILayoutable control, Size availableSize, Thickness padding) in /_/src/Avalonia.Layout/LayoutHelper.cs:line 46
at Avalonia.Controls.Border.MeasureOverride(Size availableSize) in /_/src/Avalonia.Controls/Border.cs:line 187
at Avalonia.Layout.Layoutable.MeasureCore(Size availableSize) in /_/src/Avalonia.Layout/Layoutable.cs:line 549
at Avalonia.Layout.Layoutable.Measure(Size availableSize) in /_/src/Avalonia.Layout/Layoutable.cs:line 386
at Avalonia.Layout.LayoutHelper.MeasureChild(ILayoutable control, Size availableSize, Thickness padding) in /_/src/Avalonia.Layout/LayoutHelper.cs:line 46
at Avalonia.Controls.Presenters.ContentPresenter.MeasureOverride(Size availableSize) in /_/src/Avalonia.Controls/Presenters/ContentPresenter.cs:line 366
at Avalonia.Layout.Layoutable.MeasureCore(Size availableSize) in /_/src/Avalonia.Layout/Layoutable.cs:line 549
at Avalonia.Layout.Layoutable.Measure(Size availableSize) in /_/src/Avalonia.Layout/Layoutable.cs:line 386
at Avalonia.Layout.LayoutHelper.MeasureChild(ILayoutable control, Size availableSize, Thickness padding) in /_/src/Avalonia.Layout/LayoutHelper.cs:line 46
at Avalonia.Controls.Primitives.VisualLayerManager.MeasureOverride(Size availableSize) in /_/src/Avalonia.Controls/Primitives/VisualLayerManager.cs:line 131
at Avalonia.Layout.Layoutable.MeasureCore(Size availableSize) in /_/src/Avalonia.Layout/Layoutable.cs:line 549
at Avalonia.Layout.Layoutable.Measure(Size availableSize) in /_/src/Avalonia.Layout/Layoutable.cs:line 386
at Avalonia.Layout.Layoutable.MeasureOverride(Size availableSize) in /_/src/Avalonia.Layout/Layoutable.cs:line 613
at Avalonia.Layout.Layoutable.MeasureCore(Size availableSize) in /_/src/Avalonia.Layout/Layoutable.cs:line 549
at Avalonia.Layout.Layoutable.Measure(Size availableSize) in /_/src/Avalonia.Layout/Layoutable.cs:line 386
at Avalonia.Layout.Layoutable.MeasureOverride(Size availableSize) in /_/src/Avalonia.Layout/Layoutable.cs:line 613
at Avalonia.Controls.Primitives.PopupRoot.MeasureOverride(Size availableSize) in /_/src/Avalonia.Controls/Primitives/PopupRoot.cs:line 124
at Avalonia.Controls.WindowBase.MeasureCore(Size availableSize) in /_/src/Avalonia.Controls/WindowBase.cs:line 247
at Avalonia.Layout.Layoutable.Measure(Size availableSize) in /_/src/Avalonia.Layout/Layoutable.cs:line 386
at Avalonia.Layout.LayoutManager.Measure(ILayoutable control) in /_/src/Avalonia.Layout/LayoutManager.cs:line 285
at Avalonia.Layout.LayoutManager.ExecuteInitialLayoutPass() in /_/src/Avalonia.Layout/LayoutManager.cs:line 196
at Avalonia.Controls.WindowBase.Show() in /_/src/Avalonia.Controls/WindowBase.cs:line 170
at Avalonia.Controls.Primitives.Popup.Open() in /_/src/Avalonia.Controls/Primitives/Popup.cs:line 500
at Avalonia.Controls.Primitives.Popup.IsOpenChanged(AvaloniaPropertyChangedEventArgs`1 e) in /_/src/Avalonia.Controls/Primitives/Popup.cs:line 588
at Avalonia.Controls.Primitives.Popup.<>c.<.cctor>b__23_1(Popup x, AvaloniaPropertyChangedEventArgs e) in /_/src/Avalonia.Controls/Primitives/Popup.cs:line 150
at System.Reactive.Subjects.Subject`1.OnNext(T value) in /_/Rx.NET/Source/src/System.Reactive/Subjects/Subject.cs:line 149
at Avalonia.AvaloniaObject.RaisePropertyChanged[T](AvaloniaPropertyChangedEventArgs`1 change) in /_/src/Avalonia.Base/AvaloniaObject.cs:line 756
at Avalonia.Controls.Primitives.Popup.<>c.<.cctor>b__23_5(Popup o, Boolean v) in /_/src/Avalonia.Controls/Primitives/Popup.cs:line 42
at Avalonia.DirectProperty`2.InvokeSetter(IAvaloniaObject instance, BindingValue`1 value) in /_/src/Avalonia.Base/DirectProperty.cs:line 164
at Avalonia.AvaloniaObject.SetDirectValueUnchecked[T](DirectPropertyBase`1 property, BindingValue`1 value) in /_/src/Avalonia.Base/AvaloniaObject.cs:line 820
at Avalonia.Reactive.TypedBindingAdapter`1.OnNext(BindingValue`1 value) in /_/src/Avalonia.Base/Reactive/TypedBindingAdapter.cs:line 44
at Avalonia.Reactive.BindingValueAdapter`1.OnNext(T value) in /_/src/Avalonia.Base/Reactive/BindingValueAdapter.cs:line 16
at Avalonia.AvaloniaObject.RaisePropertyChanged[T](AvaloniaPropertyChangedEventArgs`1 change) in /_/src/Avalonia.Base/AvaloniaObject.cs:line 761
at Avalonia.AvaloniaObject.Avalonia.PropertyStore.IValueSink.ValueChanged[T](AvaloniaPropertyChangedEventArgs`1 change) in /_/src/Avalonia.Base/AvaloniaObject.cs:line 509
at Avalonia.ValueStore.NotifyValueChanged[T](AvaloniaProperty`1 property, Optional`1 oldValue, BindingValue`1 newValue, BindingPriority priority) in /_/src/Avalonia.Base/ValueStore.cs:line 366
at Avalonia.ValueStore.SetExisting[T](Object slot, StyledPropertyBase`1 property, T value, BindingPriority priority) in /_/src/Avalonia.Base/ValueStore.cs:line 266
at Avalonia.ValueStore.SetValue[T](StyledPropertyBase`1 property, T value, BindingPriority priority) in /_/src/Avalonia.Base/ValueStore.cs:line 100
at Avalonia.Controls.MenuItem.Open() in /_/src/Avalonia.Controls/MenuItem.cs:line 323
at Avalonia.Controls.Platform.DefaultMenuInteractionHandler.PointerPressed(Object sender, PointerPressedEventArgs e) in /_/src/Avalonia.Controls/Platform/DefaultMenuInteractionHandler.cs:line 413
at Avalonia.Interactivity.EventRoute.RaiseEventImpl(RoutedEventArgs e) in /_/src/Avalonia.Interactivity/EventRoute.cs:line 118
at Avalonia.Interactivity.EventRoute.RaiseEvent(IInteractive source, RoutedEventArgs e) in /_/src/Avalonia.Interactivity/EventRoute.cs:line 79
at Avalonia.Interactivity.Interactive.RaiseEvent(RoutedEventArgs e) in /_/src/Avalonia.Interactivity/Interactive.cs:line 123
at Avalonia.Input.MouseDevice.MouseDown(IMouseDevice device, UInt64 timestamp, IInputElement root, Point p, PointerPointProperties properties, KeyModifiers inputModifiers) in /_/src/Avalonia.Input/MouseDevice.cs:line 235
at Avalonia.Input.MouseDevice.ProcessRawEvent(RawPointerEventArgs e) in /_/src/Avalonia.Input/MouseDevice.cs:line 144
at Avalonia.Input.InputManager.ProcessInput(RawInputEventArgs e) in /_/src/Avalonia.Input/InputManager.cs:line 37
at Avalonia.Native.WindowBaseImpl.RawMouseEvent(AvnRawMouseEventType type, UInt32 timeStamp, AvnInputModifiers modifiers, AvnPoint point, AvnVector delta) in /_/src/Avalonia.Native/WindowImplBase.cs:line 317
at Avalonia.Native.WindowBaseImpl.WindowBaseEvents.Avalonia.Native.Interop.IAvnWindowBaseEvents.RawMouseEvent(AvnRawMouseEventType type, UInt32 timeStamp, AvnInputModifiers modifiers, AvnPoint point, AvnVector delta) in /_/src/Avalonia.Native/WindowImplBase.cs:line 217
at Avalonia.Native.Interop.Impl.__MicroComIAvnWindowBaseEventsVTable.RawMouseEvent(Void* this, AvnRawMouseEventType type, UInt32 timeStamp, AvnInputModifiers modifiers, AvnPoint point, AvnVector delta) in /_/src/Avalonia.Native/Interop.Generated.cs:line 3785
--- End of stack trace from previous location ---
at Avalonia.Native.PlatformThreadingInterface.RunLoop(CancellationToken cancellationToken) in /_/src/Avalonia.Native/PlatformThreadingInterface.cs:line 90
at Avalonia.Threading.Dispatcher.MainLoop(CancellationToken cancellationToken) in /_/src/Avalonia.Base/Threading/Dispatcher.cs:line 65
at Avalonia.Controls.ApplicationLifetimes.ClassicDesktopStyleApplicationLifetime.Start(String[] args) in /_/src/Avalonia.Controls/ApplicationLifetimes/ClassicDesktopStyleApplicationLifetime.cs:line 120
at Avalonia.ClassicDesktopStyleApplicationLifetimeExtensions.StartWithClassicDesktopLifetime[T](T builder, String[] args, ShutdownMode shutdownMode) in /_/src/Avalonia.Controls/ApplicationLifetimes/ClassicDesktopStyleApplicationLifetime.cs:line 209
at UVtools.WPF.Program.Main(String[] args) in /mnt/d/Tiago/Dropbox/Programming/C#/UVtools/UVtools.WPF/Program.cs:line 70
Category: Application
System
Operative system: Darwin 20.6.0 Darwin Kernel Version 20.6.0: Tue Jun 21 20:50:28 PDT 2022; root:xnu-7195.141.32~1/RELEASE_X86_64 X64 Processor cores: 8 Memory RAM: 7.22 / 15.94 GB Runtime: osx.11.0-x64 Framework: .NET 6.0.9 AvaloniaUI: 0.10.18
Additional information and Workflow
Can’t reproduce, come from here: https://github.com/sn4k3/UVtools/issues/554
Issue Analytics
- State:
- Created a year ago
- Comments:7 (5 by maintainers)
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Was fixed after items presenter refactoring
Hi Joe,
I personally use this: https://www.reactiveui.net/docs/handbook/collections/. It’s a bit complex to learn it in the first step, but after that it works great. You still need to raise the events on the UIThread.
BR Tim