Hello,

When setting the DataSource of the OlapAxis, it throws NullReferenceException.

Here is the code snippet that causes the exception:

                   
                    var numericYAxis= new NumericYAxis()
                                          {
                                              LabelSettings = new AxisLabelSettings()
                                                                  {
                                                                      Extent = 55,
                                                                      Location = AxisLabelsLocation.OutsideLeft,
                                                                      IsHitTestVisible = true
                                                                  }
                                          };

                    DataChart.Axes.Add(numericYAxis);

                    OlapXAxis olapXAxis = new OlapXAxis();
                    olapXAxis.YAxis = numericYAxis;
                    olapXAxis.Label = "{Label}";
                    olapXAxis.OlapAxisSource = OlapAxisSource.Rows;
                    olapXAxis.LabelSettings = new AxisLabelSettings();
                    olapXAxis.LabelSettings.Extent = 35;
                    olapXAxis.LabelSettings.Location = AxisLabelsLocation.OutsideBottom;
                                       
                    olapXAxis.DataSource = chartViewModel.OlapViewModel;//Note:OlapViewModel is not null

   at Infragistics.Controls.Charts.OlapXAxis.LayoutArranged()
   at Infragistics.Controls.Charts.OlapAxis.ArrangeLayoutInternal()
   at Infragistics.Controls.Charts.OlapAxis.DataSourceChanged(DependencyObject obj, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Infragistics.Controls.Charts.OlapAxis.set_DataSource(IOlapViewModel value)
   at GoIT.Dashboard.Infrastructure.Controls.Charts.DataChartControl.ResolveXAxis(IChartViewModel chartViewModel)

Is there any way how to fix it?

Thank you