How to set the custom labels with auto range for axis?

 <!--Hooked ActualRangeChangedEvent-->

<chart:SfChart.SecondaryAxis>

<chart:NumericalAxis ActualRangeChanged="NumericalAxis_ActualRangeChanged"/>                         

 </chart:SfChart.SecondaryAxis>

private void NumericalAxis_ActualRangeChanged(object sender, Syncfusion.UI.Xaml.Charts.ActualRangeChangedEventArgs e)

{

            var axis = sender as NumericalAxis;

            //Gets the collection of visible labels.

            var labels = axis.VisibleLabels;

            if (labels != null)

            {

                if (axis.CustomLabels.Count > 0)

                    axis.CustomLabels.Clear();

                //To add the custom labels based on the position of visible labels.

                for (int index = 0; index < labels.Count; index++)

                {

                    var axisLabel = new ChartAxisLabel()

                    {

                        Position = labels[index].Position,//To set the position where the custom label should be placed.

                        LabelContent = "Item" + index//To set the content from which labels are to be taken.

                    };

                    axis.CustomLabels.Add(axisLabel);

                }

            }

        }