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How to create Excel radar with markers chart in C#, VB.NET?

Platform: WinForms |
Control: XlsIO |
Published Date: February 14, 2018 |
Last Revised Date: April 17, 2019

This article explains how to create a radar with markers chart in Excel using Syncfusion Excel (XlsIO) library.

What is a radar with markers chart?

Radar charts compare the aggregate values of several data series by plotting the values of each category along a separate axis that starts in the center of the chart and ends on the outer ring.

Create Radar With Markers Chart in Excel

Radar With Markers Chart

To create a radar with markers chart in Excel using XlsIO, you need to do the following steps.

Steps to create radar with markers chart:

Step 1: Initialize chart

Create a chart object by calling the worksheet.Charts.Add method and specify the chart type to ExcelChartType.Radar_Markers enum value.

C#

            //Create the chart
            IChartShape chart = worksheet.Charts.Add();
 
            //Set chart type to Radar_Markers
            chart.ChartType = ExcelChartType.Radar_Markers;

 

Step 2: Assign data

Set a range of data from the worksheet to chart’s DataRange property. To plot the series values in column and categories in row, set chart’s IsSeriesInRows property to false.

C#

            //Set region of Chart data
            chart.DataRange = worksheet["A3:B7"];
 
            //Set chart series in column for assigned data region
            chart.IsSeriesInRows = false;

 

Step 3: Apply basic chart elements

Add the basic elements like chart title, data labels and legend.

  • ChartTitle of chart object.
  • Set DataLabels via DefaultDataPoint.
  • Set TRUE to chart’s HasLegend property, to show the legend.

C#

              //Apply chart elements
              //Set Chart Title
              chart.ChartTitle = "Radar With Markers Chart";
 
              //Set Legend
              chart.HasLegend = false;
              
              //Set Datalabels
              IChartSerie serie = chart.Series[0];
              serie.DataPoints.DefaultDataPoint.DataLabels.IsValue = true;
 

 

Applicable properties of radar with markers chart

Below is the list of other properties that are applicable for a radar with markers chart.

  1. MarkerBackgroundColor (or) MarkerBackgroundColorIndex
  2. MarkerForegroundColor (or) MarkerForegroundColorIndex
  3. MarkerSize
  4. MarkerStyle
  5. IsAutoMarker
  6. HasRadarAxisLables
Note:

Applying properties apart from the mentioned list might throw exception or the changes will not be reflected in the output document because those properties are not related to radar with markers chart.

Download Complete Sample

Download input file with data

To know more about creating charts with various settings using Syncfusion Excel (XlsIO) library, please refer the documentation.

The following C#/ VB.NET complete code snippet shows the creation of radar with markers chart using XlsIO.

C#

using Syncfusion.XlsIO;
using System.Reflection;
using System.IO;
 
namespace ChartSample
{
    class Program
    {
        static void Main(string[] args)
        {
            using (ExcelEngine excelEngine = new ExcelEngine())
            {
                IApplication application = excelEngine.Excel;
                application.DefaultVersion = ExcelVersion.Excel2016;
 
                //Open existing workbook with data entered
                Assembly assembly = typeof(Program).GetTypeInfo().Assembly;
                Stream fileStream = assembly.GetManifestResourceStream("ChartSample.InputTemplate.xlsx");
                IWorkbook workbook = application.Workbooks.Open(fileStream);
                IWorksheet worksheet = workbook.Worksheets[0];
 
                //Initialize chart
                IChartShape chart = worksheet.Charts.Add();
                chart.ChartType = ExcelChartType.Radar_Markers;
 
                //Assign data
                chart.DataRange = worksheet["A3:B7"];
                chart.IsSeriesInRows = false;
 
                //Apply chart elements
                //Set Chart Title
                chart.ChartTitle = "Radar With Markers Chart";
 
                //Set Legend
                chart.HasLegend = false;
 
                //Set Datalabels
                IChartSerie serie = chart.Series[0];
                serie.DataPoints.DefaultDataPoint.DataLabels.IsValue = true;
 
                //Positioning the chart in the worksheet
                chart.TopRow = 8;
                chart.LeftColumn = 1;
                chart.BottomRow = 23;
                chart.RightColumn = 8;
 
                //Saving and closing the workbook
                Stream stream = File.Create("Output.xlsx");
                workbook.SaveAs(stream);
            }
        }
    }
}

 

VB.NET

Imports Syncfusion.XlsIO
Imports System.Reflection
Imports System.IO
 
Namespace ChartSample
 
    Class Program
 
        Public Shared Sub Main(ByVal args As String())
            Using excelEngine As ExcelEngine = New ExcelEngine()
                Dim application As IApplication = excelEngine.Excel
                application.DefaultVersion = ExcelVersion.Excel2016
 
                'Open existing workbook with data entered
                Dim assembly As Assembly = GetType(Program).GetTypeInfo().Assembly
                Dim fileStream As Stream = assembly.GetManifestResourceStream("ChartSample.InputTemplate.xlsx")
                Dim workbook As IWorkbook = application.Workbooks.Open(fileStream)
                Dim worksheet As IWorksheet = workbook.Worksheets(0)
 
                'Initialize chart
                Dim chart As IChartShape = worksheet.Charts.Add()
                chart.ChartType = ExcelChartType.Radar_Markers
 
                'Assign data
                chart.DataRange = worksheet("A3:B7")
                chart.IsSeriesInRows = False
 
                'Apply chart elements
                'Set Chart Title
                chart.ChartTitle = "Radar With Markers Chart"
 
                'Set Legend
                chart.HasLegend = False
 
                'Set Datalabels
                IChartSerie serie = chart.Series[0]
                serie.DataPoints.DefaultDataPoint.DataLabels.IsValue = True
 
                'Positioning chart in the worksheet
                chart.TopRow = 8
                chart.LeftColumn = 1
                chart.BottomRow = 23
                chart.RightColumn = 8
 
                'Saving and closing the workbook
                Dim stream As Stream = File.Create("Output.xlsx")
                workbook.SaveAs(stream)
            End Using
        End Sub
    End Class
End Namespace

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