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How to create Excel area chart in C#, VB.NET?

Platform: WinForms |
Control: XlsIO |
Published Date: January 31, 2018 |
Last Revised Date: August 30, 2021

This article explains how to create an Area chart in Excel using XlsIO.

 

What is an area chart?

 

Area charts visually represent the change in one or more quantities over time or other category data.

 

Create Area Chart in Excel

       Area Chart Created using XlsIO

To create an area chart in Excel using XlsIO, you need to do the following steps.

 

Steps to create area chart

 

  1. Initialize chart

 

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

 

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

 

  1. 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.

 

            //Set region of Chart data
            chart.DataRange = worksheet["A1:D6"];
 
            //Set chart series in column for assigned data region
            chart.IsSeriesInRows = false;

 

  1. Apply basic chart elements

 

Add the basic elements like chart title and legend.

 

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

 

              //Apply chart elements
              //Set Chart Title
              chart.ChartTitle = "Area Chart";
 
              //Set Legend
              chart.HasLegend = true;
              chart.Legend.Position = ExcelLegendPosition.Bottom;
 

 

Applicable properties for area chart

 

Common property applicable for area charts is

 

  1. IsVarycolor  (This property holds good for single series chart and is available in IChartFormat ).

 

NOTE: Applying other properties apart from the mentioned property might throw exception or the changes will not be reflected in the output document because those properties are not related to area chart.

 

Download Complete Sample

 

Download input file with data

 

To know more about creating charts with various settings using XlsIO, please refer the documentation.

 

The following C#/ VB.NET complete code snippet shows the creation of area 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.Area;
 
                //Assign data
                chart.DataRange = worksheet["A1:D6"];
                chart.IsSeriesInRows = false;
 
                //Apply chart elements
                //Set Chart Title
                chart.ChartTitle = "Area Chart";
 
                //Set Legend
                chart.HasLegend = true;
                chart.Legend.Position = ExcelLegendPosition.Bottom;
 
                //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);
                workbook.Close();
            }
        }
    }
}

 

VB

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.Area
 
                'Assign data
                chart.DataRange = worksheet("A1:D6")
                chart.IsSeriesInRows = False
 
                'Apply chart elements
                'Set Chart Title
                chart.ChartTitle = "Area Chart"
 
                'Set Legend
                chart.HasLegend = True
                chart.Legend.Position = ExcelLegendPosition.Bottom
 
                '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)
                workbook.Close()
            End Using
        End Sub
    End Class
End Namespace

 

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