How to represent an image in a legend item in WinForms Chart?

In Syncfusion® WinForms Charts, the legend item icon can be represented using different shapes, series types, or images. The RepresentationType property is used to specify the type of representation for the icon in a legend item.

C#

//Assign X and Y axes
this.chartControl1.PrimaryXAxis.ValueType = ChartValueType.Category;
this.chartControl1.PrimaryYAxis.ValueType = ChartValueType.Double;

//Configure the series
CategoryAxisDataBindModel dataSeriesModel = new CategoryAxisDataBindModel(dataSource);
dataSeriesModel.CategoryName = "Year";
dataSeriesModel.YNames = new string[] { "Sales" };
ChartSeries chartSeries = new ChartSeries("Sales");
chartSeries.CategoryModel = dataSeriesModel;
this.chartControl1.Series.Add(chartSeries);

//Update the image to the legend icon
ImageList imageList1 = new ImageList();
imageList1.ImageSize = new Size(100, 100);
imageList1.Images.Add(Image.FromFile("D:\\WinForms\\Winforms_Chart_VBSample\\images\\sales.png"));
chartSeries.Style.Images = new ChartImageCollection(this.imageList1.Images);
chartSeries.Style.ImageIndex = 0;
this.chartControl1.Legend.RepresentationType = ChartLegendRepresentationType.SeriesImage;

VB

'Assign the X and Y axies
columnChart.PrimaryXAxis.ValueType = ChartValueType.Category
columnChart.PrimaryYAxis.ValueType = ChartValueType.Double

'Configure the chart series
For Each salesdata In viewmodel.PlantDetails
    chartseries1.Points.Add(salesdata.Year, salesdata.Sales)
Next
chartseries1.Style.DisplayText = True
chartseries1.Style.TextOrientation = ChartTextOrientation.Up

'Update the image to the legend icon
Dim imageList1 = New ImageList()
imageList1.ImageSize = New Size(100, 100)
imageList1.Images.Add(Image.FromFile("D:\\WinForms\\Winforms_Chart_Sample\\images\\sales.png"))
chartseries1.Style.Images = New ChartImageCollection(imageList1.Images)
chartseries1.Style.ImageIndex = 0
columnChart.Legend.RepresentationType = ChartLegendRepresentationType.SeriesImage