SciChartĀ® the market leader in Fast WPF Charts, WPF 3D Charts, and now iOS Charting & Android Chart Components

0 votes


IĀ“ve encountered following problem. My application should visualize variables of a machine. The user can select those variables an organize them in goups. For each group a SciChartSurface should be visualized with the selected variable as DataSeries.

Therefore I created a ViewModel for those groups. Holding them in a ObservableCollection wich is bound to an ItemsControl:

        ItemsSource="{Binding ChartViewModels}"
                <UniformGrid Columns="1"/>
            <DataTemplate DataType="traceControl:ChartViewModel">

                    <s:SciChartSurface Loaded="ChartSurface_Loaded" 


                      <!-- Some other stuff is also in here, modifiers and axissetup -->



There is a Refresh-Action. It does clearing the the ViewModel Collection and creating new ViewModels depending on the configuration and fill them in the ViewModel Collection.

If both actionparts (clearing and filling data) were executed together in for example the ICommand of a button, the memory footprint is increasing each time the refresh button is hit.

If the actionparts were executed one by one, e.g. a clear button and a fill button, everything is fine.

Do I miss something?

Thanks in advance!


p.s. I was not allowed to add Screenshots of dotMemory

0 votes

I am trying to bind from my ViewModel to the DataSeries of a ScatterRenderableSeries3D, but no data is showing.

I am binding in this way:

My ViewModel has a property of type ObservableCollection<XyzDataSeries3D<DateTime, double, int>>. I can populate ChartItems, and see the data in it. The property is being notified of change as expected.

If I populate the DataSeries directly from code behind, it works, but not when being bound.

What am I doing wrong?

0 votes


I want to use user’s settings in my application. I’ve created my own window for settings with checkboxes and colorpickers.

I’ve binded my series with settings like that

            <s:FastLineRenderableSeries x:Name="tLineSeries1" StrokeDashArray="7 4" StrokeThickness="3" YAxisId="RightAxis" >
                    <Binding Source="{x:Static ProjectProperties:Settings.Default}" Path="Visibility1" />
                    <Binding Source="{x:Static ProjectProperties:Settings.Default}" Path="Color1" />

Everything is working fine and after restarting the application i get the colors and visibility of series as i want.

The problems starts after turning on ShowVisibilityCheckboxes=”true” in LegendModifier. After that, my settings dont work at all. Is there any way how can i bind checkboxes from the legends with my own created checkboxes or settings? In other words, how can i make them both to work “together”?

0 votes


in a MVVM scenario, I bind the AnimatedVisibleRange to a property in the view model.

 <s:SciChartSurface SeriesSource="{Binding ChartSeries}">
     <s:NumericAxis AxisTitle="x" AnimatedVisibleRange="{Binding XVisibleRange, Mode=TwoWay}" AutoRange="Never" />
     <s:NumericAxis AxisTitle="y" AnimatedVisibleRange="{Binding YVisibleRange, Mode=TwoWay}" AutoRange="Never" />
       <s:MouseWheelZoomModifier IsEnabled="True" XyDirection="XDirection"/>

Setting the XVisibleRange property in the view model smoothly animates the view. However, when I zoom in the chart with the mouse wheel, the view model property receives no updates (so the XVisibleRange property in the view model always stays on the value initially set by the view model).

The same thing works when I bind he VisibleRange instead of the AnimatedVisibleRange, i.e. in that case I get an update of the view model property on every mouse wheel zoom.

Is this intendend, or a bug? Building a workaround would require additional bindings, which I would like to avoid.

Best regards,


0 votes

I’m trying to dynamically create chart surfaces and renderable series, but I’m having trouble binding one of the axes to another one, like you would do with this code in XAML:

<s:CategoryDateTimeAxis VisibleRange="{Binding ElementName=priceChart,
                                                                    Mode=TwoWay}" />

I need to accomplish the same thing directly in C# but there are no methods related to binding at all. From the MSDN reference pages I’ve seen that any element that extends FrameworkElement has the Binding property, but it seems the axes don’t extend from that.

Could someone help me out in binding this axis to another axis (for the record, the other one is defined in XAML)?

1 vote

In my project the output panel showing the following binding errors

System.Windows.Data Error: 40 : BindingExpression path error: 'Exponent' property not found on 'object' ''DefaultTickLabelViewModel' (HashCode=56110932)'. BindingExpression:Path=Exponent; DataItem='DefaultTickLabelViewModel' (HashCode=56110932); target element is 'TextBlock' (Name=''); target property is 'Text' (type 'String')
System.Windows.Data Error: 40 : BindingExpression path error: 'HasExponent' property not found on 'object' ''DefaultTickLabelViewModel' (HashCode=56110932)'. BindingExpression:Path=HasExponent; DataItem='DefaultTickLabelViewModel' (HashCode=56110932); target element is 'TextBlock' (Name='exponent'); target property is 'Visibility' (type 'Visibility')
System.Windows.Data Error: 40 : BindingExpression path error: 'Separator' property not found on 'object' ''DefaultTickLabelViewModel' (HashCode=9331561)'. BindingExpression:Path=Separator; DataItem='DefaultTickLabelViewModel' (HashCode=9331561); target element is 'TextBlock' (Name=''); target property is 'Text' (type 'String')

my Line chart view code is here (I can’t able to make attachment)

<UserControl x:Class="Instron.Database.Presentation.DatabaseViews.Views.Visualization.LineChartView"
             mc:Ignorable="d" Width="Auto" Height="Auto"   

                <ResourceDictionary Source="ContentControlDataTemplate.xaml"/>

    <Grid >

        <TextBlock  FontSize="24" 
                    Visibility="{Binding IsAxisVisible,Converter={StaticResource  NotBooleanToVisibilityConverter}}" >
                            <gbl:TranslateExtension.DesignTimeText>Either X or Y axis do not contain sufficient data</gbl:TranslateExtension.DesignTimeText>

        <s:SciChartSurface x:Name="sciChart" ChartTitle="{Binding ChartName}" Style="{StaticResource SciChartSurfaceStyle}"   Visibility="{Binding IsLegendVisible,Converter={StaticResource  BoolToVisibilityConverter}}" 
            GridLinesPanelStyle="{StaticResource GridLinesPanelStyle }"  RenderableSeries="{Binding RenderableSeries}"  Margin="0,-5,0,-10"
               DataContextChanged="sciChart_DataContextChanged" Rendered="sciChart_Rendered"  ViewportManager="{Binding ViewportManager}">

                <ContextMenu >
                    <MenuItem  Command="{Binding SaveAsCommand}">
                    <MenuItem  Command="{Binding CopyCommand}">
                    <MenuItem  Command="{Binding PrintCommand}">

                <s:NumericAxis  AutoTicks="False" GrowBy="0.05, 0.05"  
                                DrawMajorGridLines="{Binding IsLegendVisible}"  DrawMinorGridLines ="False"
                                AxisTitle="{Binding XAxisName}"  TitleStyle="{StaticResource AxisTitleStyle}" TickLabelStyle="{StaticResource AxisLabelStyle}" 
                                LabelProvider="{Binding XLabelFormatter}"
                                MajorDelta="1" MinorDelta="0.2"

                <s:NumericAxis  GrowBy="1, 1" TickLabelStyle="{StaticResource AxisLabelStyle}" DrawMajorGridLines="{Binding IsLegendVisible}"
                                AxisAlignment="Left"  DrawMinorGridLines ="False"
                                AxisTitle="{Binding YAxisTitle}" 
                                TitleStyle="{StaticResource AxisTitleStyle}" />

            <!--  Adding the ZoomPanModifier gives SciChart the ability to pan on mouse-drag  -->
                    <s:XAxisDragModifier ClipModeX="ClipAtExtents"/>
                    <s:YAxisDragModifier ClipToBounds="True" />
                    <s:RubberBandXyZoomModifier x:Name="rubberBandZoomModifier" IsEnabled="True" IsXAxisOnly="False" ZoomExtentsY="False" IsAnimated="True"/>
                    <s:ZoomExtentsModifier x:Name="zoomExtentsModifier" ClipToBounds="True" ExecuteOn="MouseDoubleClick"/>
                    <s:LegendModifier x:Name="legendModifier" GetLegendDataFor="AllVisibleSeries" />

                            <s:SciChartLegend  x:Name="legendControl" Margin="2,2" Orientation="Horizontal"  Background="Transparent" BorderThickness="0" ScrollViewer.VerticalScrollBarVisibility="Auto"
                                Visibility="{Binding IsLegendVisible,Converter={StaticResource  BoolToVisibilityConverter}}" 
                                LegendData="{Binding LegendData, ElementName=legendModifier,Mode=OneWay}" >

                                    <SciChart:ColorToBrushConverter x:Key="ColorToBrushConverter"/>
                                    <DataTemplate DataType="SciChart:XyzSeriesInfo">
                                                <ColumnDefinition Width="Auto" />
                                                <ColumnDefinition Width="Auto" />
                                           <Rectangle Grid.Column="0"

                                                Stroke="{Binding SeriesColor,
                                                Converter={StaticResource ColorToBrushConverter}}" />
                                            <TextBlock Grid.Column="1" Foreground="Black" 
                                                Text="{Binding SeriesName}" FontWeight="Normal"/>
  • Raghupathy asked 3 years ago
  • last active 3 years ago
1 vote
0 answers

I’m trying to MouseEventGroup:

        <s:ModifierGroup s:MouseManager.MouseEventGroup="{Binding SharedMouseGroupId}">

Where SharedMouseGroupId is

    private String sharedMouseGroupId;
    public String SharedMouseGroupId
        get { return this.sharedMouseGroupId; }
            this.sharedMouseGroupId = value;
            RaisePropertyChanged(() => SharedMouseGroupId);

And init:

        SharedMouseGroupId = Guid.NewGuid().ToString();

But this doesn’t work.
If i subscribe on Loaded event of surface and manually set MouseEventGroup, this work.

        MouseManager.SetMouseEventGroup((DependencyObject)c.ChartModifier, ViewModel.Parent.SharedMouseGroupId);
1 vote


I have a scichart surface defined in xaml like this,

<local:SciChartSurface x:Name="_ChartSurface"  Annotations="{Binding ChartAnnotations}">


In the code behind I have ChartAnnotations defined as,

 public const string ChartAnnotationsPropertyName = "ChartAnnotations";
        private AnnotationCollection _ChartAnnotations = new AnnotationCollection();
        public AnnotationCollection ChartAnnotations
            get { return _ChartAnnotations; }
                if (_ChartAnnotations == value)

                _ChartAnnotations = value;

 public ViewModelExample()
  ChartAnnotations.CollectionChanged += ChartAnnotations_CollectionChanged;    

 void ChartAnnotations_CollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)

Than in the code behind, I just initialize and add some annotations to the ChartAnnotations collection to populate my chart. The problem is that my Annotations property on the scichart surface is still null, and the RaisePropertyChanged() is not affecting the Bindings at all. I’m certain that the DataContext is set right as other stuff in the graph works fine. I works when I explicitly set the surface’s Annotations property with my ChartAnnotations collection, but obviously this is less than ideal.

Is there an additional step that I’m missing here?


  • kewur asked 3 years ago
  • last active 3 years ago
0 votes


I have some charts binded to a viewmodel. I wanted to produce a bar chart, so I want to modify the AxisAlignment.

If I specify a hardcoded alignment in the XAML, it works fine.

If I bind the alignment to the viewModel, the chart does not render, and I get the following error in the output:

 SciChartSurface didn't render, because an exception was thrown:
      Message: The specified Visual and this Visual do not share a common ancestor, so there is no valid transformation between the two Visuals.

Stack Trace:    at System.Windows.Media.Visual.TransformToVisual(Visual visual)
   at A.cac257c85637821690b32a44bda9b120f.cd0eaed29fc1e87dfe7aa912a7f678b57(FrameworkElement c5aaca7e2018a1512249ec2e2170b4cc6, UIElement c708323fb6eac118d4fd2c5913dc2a6ed)
   at A.cac257c85637821690b32a44bda9b120f.cd0eaed29fc1e87dfe7aa912a7f678b57(FrameworkElement c5aaca7e2018a1512249ec2e2170b4cc6, IHitTestable cc9d5fbe91f2861ee865bbb5439d3b84d)
   at Abt.Controls.SciChart.Visuals.Axes.AxisBase.GetAxisOffset()
   at Abt.Controls.SciChart.Visuals.Axes.AxisBase.GetAxisParams()
   at Abt.Controls.SciChart.Visuals.Axes.AxisBase.OnBeginRenderPass()
   at A.cda144392e546b245ef5bb1ee71f22b3a.c64a51c8ba6b7cbda8b9d9380d6337036(ISciChartSurface c17037e8328cd0abc02d2a6957dfa450c, RenderPassInfo c16b8d70d2b6ecad8f9fca7ac3f5177b8)
   at A.cda144392e546b245ef5bb1ee71f22b3a.c1a2306a5cc0452a04d135e77f0de4ff1(ISciChartSurface c17037e8328cd0abc02d2a6957dfa450c, Size cacf0a4a95d1143f0c11e20d4508e7132)
   at A.cda144392e546b245ef5bb1ee71f22b3a.RenderLoop(IRenderContext2D renderContext)
   at Abt.Controls.SciChart.Visuals.SciChartSurface.ca065c0b671221e0e603d0e9bf2792494()

This is the axis XAML:

                                    <s:NumericAxis AxisAlignment="{Binding XAxisAlignment}" LabelProvider="{Binding LabelProvider}" AutoTicks="False" MajorDelta="1" MinorDelta="1" DrawMinorGridLines="False">

                                    <s:NumericAxis AxisAlignment="{Binding YAxisAlignment}" AxisTitle="Number of crimes" GrowBy="0,1"/>

And the properties I’m binding to:

public AxisAlignment XAxisAlignment { get; private set; }

public AxisAlignment YAxisAlignment { get; private set; }

Any help is appreciated.


  • cabdo asked 3 years ago
  • last active 3 years ago
Showing 9 results
This template supports the sidebar's widgets. Add one or use Full Width layout.
SciChart WPF v5 is here! Use the discount code SCICHARTV5 to get 15% off WPF Charts until December 31st!Read More