I have a BubbleSeries with a binding to a collection of equally spaced items. When I resize my dialog I clearly see that there are bubbles missing.

I beleave this is a bug in the XamDataChart.

Here is my code to reproduce.

MainWindow.xaml:

<Window x:Class="TestUmgebungBubbles.MainWindow"

  xmlns=http://schemas.microsoft.com/winfx/2006/xaml/presentation

  xmlns:x=http://schemas.microsoft.com/winfx/2006/xaml

  xmlns:ig=http://schemas.infragistics.com/xaml

  Title="MainWindow" Height="350" Width="1200">

    <Grid>

        <ig:XamDataChart x:Name="xamdatachart" >

            <ig:XamDataChart.Axes>

                <ig:NumericXAxis x:Name="xAxis" Title="AxisX" />

                <ig:NumericYAxis x:Name="yAxis" Title="AxisY"/>

            </ig:XamDataChart.Axes>

           <ig:XamDataChart.Series>

                <ig:BubbleSeries  XAxis="{Binding ElementName=xAxis}"

                  YAxis="{Binding ElementName=yAxis}"

                  XMemberPath="ValueX"

                  YMemberPath="ValueY"

                  ItemsSource="{Binding Collection}" >

                </ig:BubbleSeries>

            </ig:XamDataChart.Series>

        </ig:XamDataChart>

        <Label Content="Please resize the Window a few times to get the bubbles non-equally spaced " Margin="80,0,0,0"/>

    </Grid>

</Window>

And in MainWindow.xaml.cs:

public partial class MainWindow : Window

    {

public ObservableCollection<ChartData> Collection

        {

get { return (ObservableCollection<ChartData>)GetValue(CollectionProperty); }

set { SetValue(CollectionProperty, value); }

        }

public static readonly DependencyProperty CollectionProperty =

            DependencyProperty.Register("Collection", typeof(ObservableCollection<ChartData>), typeof(MainWindow), new PropertyMetadata(null));

public MainWindow()

       {

            Collection =new ObservableCollection<ChartData>();

for (int i = 0; i < 1000; i++)

            {

                ChartData data =new ChartData()

                {

                    ValueX = (double)i * 0.1,

                    ValueY = 20

                 };

                Collection.Add(data);

            }

this.DataContext = this;

            InitializeComponent();

        }

    }

public class ChartData

     {

public double ValueX { get; set; }

public double ValueY{ get; set; }

    }