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Error when removing fields from the data view


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I'm using build 3554, and I'm having a problem removing fields from the data view. If I call, for instance, chtTest.DataView.Fields.Items.RemoveAt(0) in the DataBound event of the chart after calling chtTest.DataView.Fields.ReloadFieldsFromData(), the data view stops working and I get the following error written to output:

 System.Windows.Data Error: 16 : Cannot get 'Data' value (type 'IEnumerable') from '' (type 'ItemsSourceHolder'). BindingExpression:Path=Data; DataItem='ItemsSourceHolder' (HashCode=10261382); target element is 'DataGridItems' (Name=''); target property is 'ItemsSource' (type 'IEnumerable') TargetInvocationException:'System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.IndexOutOfRangeException: Index was outside the bounds of the array.

at ChartFX.WPF.Internal.AttributesResolver.a(Int32 A_0)

at ChartFX.WPF.DataGridItems.RenderHeaders(PaintInfo paintInfo)

at ChartFX.WPF.DataGridItems.BuildItemsSource(Object obj, IEnumerator enumerator, Int32 count, Int32& rows)

at ChartFX.WPF.DataView.ChartFX.WPF.Internal.ILogicalItemsBuilder.Build()

at ChartFX.WPF.Internal.ItemsSourceHolder.get_Data()

--- End of inner exception stack trace ---

at System.RuntimeMethodHandle._InvokeMethodFast(Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner)

at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)

at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)

at System.Reflection.RuntimePropertyInfo.GetValue(Object obj, Object[] index)

at MS.Internal.Data.PropertyPathWorker.GetValue(Object item, Int32 level)

at MS.Internal.Data.PropertyPathWorker.RawValue(Int32 k)'

I've attached an application that reproduces this issue. To replicate, click "Reload Data", then "Hide Series", then "Reload Data" again.

Thank you.

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We have a very similar effect and get the same exception:

 Index was outside the bounds of the array.

at ChartFX.WPF.Internal.AttributesResolver.b(Int32 A_0, Int32 A_1)

at ChartFX.WPF.Axis.ChartFX.WPF.Internal.ILegendItemGenerator.BuildNext(LogicalItemCollection items, Chart chart, Int32& index, LegendItemAttributesResolved resolved, ResolvedAttributes attributes, Object target, Object& extraData)

at ChartFX.WPF.LegendBox.a(ILegendItemGenerator A_0, LogicalItemCollection A_1, LegendItemAttributesResolved A_2)

at ChartFX.WPF.LegendBox.a()

at ChartFX.WPF.LegendBox.OnMeasure()

at ChartFX.WPF.BorderContent.MeasureOverride(Size availableSize)

at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

at System.Windows.UIElement.Measure(Size availableSize)

at ChartFX.WPF.Controls.SpacingDockPanel.MeasureOverride(Size availableSize)

at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

 

See the attached application which reproduces the problem.

Do the following:

- Click "Add Point"

- Select Tab2

- Click "Add Point"

- Select Tab1

- Click "Add Point"

 In additon, the application shows a few more unexpected effects:

- Charts are not updated, when in an unselected tab and show stale data when they reapear in the selected tab

- Legends of pie charts disapear when data changes (Therefore, the collapsed/visible statements)

 

Regards and thanks

Stefan

 

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