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System.ArgumentException: Must create DependencySource on same Thread as the DependencyObject. at System.Windows.DependencyObject.ValidateSources(DependencyObject d, DependencySource[] newSources, Expression expr) at System.Windows.Expression.ChangeSources(DependencyObject d, DependencyProperty dp, DependencySource[] newSources) at System.Windows.Data.BindingExpressionBase.ChangeSources(WeakDependencySource[] newSources) at MS.Internal.Data.ClrBindingWorker.ReplaceDependencySources() at MS.Internal.Data.ClrBindingWorker.NewValueAvailable(Boolean dependencySourcesChanged, Boolean initialValue, Boolean isASubPropertyChange) at MS.Internal.Data.PropertyPathWorker.UpdateSourceValueState(Int32 k, ICollectionView collectionView, Object newValue, Boolean isASubPropertyChange) at MS.Internal.Data.ClrBindingWorker.AttachDataItem() at System.Windows.Data.BindingExpression.Activate(Object item) at System.Windows.Data.BindingExpression.AttachToContext(AttachAttempt attempt) at System.Windows.Data.BindingExpression.MS.Internal.Data.IDataBindEngineClient.AttachToContext(Boolean lastChance) at MS.Internal.Data.DataBindEngine.Task.Run(Boolean lastChance) at MS.Internal.Data.DataBindEngine.Run(Object arg) 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)

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