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Change Excel chart series color in C#, VB.NET

Platform: WinForms |
Control: XlsIO |
Published Date: April 30, 2011 |
Last Revised Date: April 10, 2019

Syncfusion Excel (XlsIO) library is a .NET Excel library used to create, read, and edit Excel documents. Also, converts Excel documents to PDF files. Using this library, you can change Excel chart series color in C#, VB.NET.

Series for which you need to change the color in chart shape has to be accessed and stored in a serie object of IChartSerie interface. Then the data points need to be accessed and foreground color index must be set to change Excel chart series color.

Steps to change Excel chart series color, programmatically:

Step 1: Create a new C# console application project.

Create a new C# console application

Step 2: Install the Syncfusion.XlsIO.WinForms NuGet package as reference to your .NET Framework application from NuGet.org.

Install NuGet package

Step 3: Include the following namespace in the Program.cs file.

C#

using Syncfusion.XlsIO;

 

VB.NET

Imports Syncfusion.XlsIO

 

Step 4: Use the following code snippet to change Excel chart series color in C#, VB.NET.

C#

using (ExcelEngine excelEngine = new ExcelEngine())
{
    //Instantiate the application object
    IApplication application = excelEngine.Excel;
 
    //Add a workbook
    IWorkbook workbook = application.Workbooks.Create(1);
 
    //The first worksheet object in the worksheets collection is accessed
    IWorksheet worksheet = workbook.Worksheets[0];
    worksheet.Name = "First Chart";
 
    //Entering the chart data
    worksheet.Range["A1"].Text = "Texas books Unit sales";
    worksheet.Range["A1:D1"].Merge();
    worksheet.Range["A1"].CellStyle.Font.Bold = true;
 
    worksheet.Range["B2"].Text = "Jan";
    worksheet.Range["C2"].Text = "Feb";
    worksheet.Range["D2"].Text = "Mar";
 
    worksheet.Range["A3"].Text = "Austin";
    worksheet.Range["A4"].Text = "Dallas";
    worksheet.Range["A5"].Text = "Houston";
    worksheet.Range["A6"].Text = "San Antonio";
 
    worksheet.Range["B3"].Number = 53.75;
    worksheet.Range["B4"].Number = 52.85;
    worksheet.Range["B5"].Number = 59.77;
    worksheet.Range["B6"].Number = 96.15;
 
    worksheet.Range["C3"].Number = 79.79;
    worksheet.Range["C4"].Number = 59.22;
    worksheet.Range["C5"].Number = 10.09;
    worksheet.Range["C6"].Number = 73.02;
 
    worksheet.Range["D3"].Number = 26.72;
    worksheet.Range["D4"].Number = 33.71;
    worksheet.Range["D5"].Number = 45.81;
    worksheet.Range["D6"].Number = 12.17;
 
    //Adding a New (Embedded chart) to the worksheet 
    IChartShape shape = worksheet.Charts.Add();
    shape.ChartType = ExcelChartType.Column_Clustered;
    shape.DataRange = worksheet.Range["B3:D6"];
    shape.IsSeriesInRows = false;
    shape.PrimaryCategoryAxis.Title = "City";
    shape.PrimaryCategoryAxis.CategoryLabels = worksheet["A3:A6"];
    shape.PrimaryValueAxis.Title = "Sales (in Dollars)";
    shape.ChartTitle = "Texas Books Unit Sales";
    shape.HasDataTable = true;
 
    //Setting the serie names
    IChartSerie serieOne = shape.Series[0];
    serieOne.Name = "Jan";
    IChartSerie serietwo = shape.Series[1];
    serietwo.Name = "Feb";
    IChartSerie seriethree = shape.Series[2];
    seriethree.Name = "March";
 
    //Changing the series color
    serietwo.DataPoints.DefaultDataPoint.DataFormat.AreaProperties.ForegroundColorIndex = ExcelKnownColors.Red;
                
    //Save the file
    workbook.SaveAs("Output.xlsx");
 
    System.Diagnostics.Process.Start("Output.xlsx");}

 

VB.NET

Using excelEngine As ExcelEngine = New ExcelEngine()
    'Instantiate the application object
    Dim application As IApplication = excelEngine.Excel
 
    'Add a workbook
    Dim workbook As IWorkbook = application.Workbooks.Create(1)
 
    'The first worksheet object in the worksheets collection is accessed
    Dim worksheet As IWorksheet = workbook.Worksheets(0)
    worksheet.Name = "First Chart"
 
    'Entering the chart data
    worksheet.Range("A1").Text = "Texas books Unit sales"
    worksheet.Range("A1:D1").Merge()
    worksheet.Range("A1").CellStyle.Font.Bold = True
 
    worksheet.Range("B2").Text = "Jan"
    worksheet.Range("C2").Text = "Feb"
    worksheet.Range("D2").Text = "Mar"
 
    worksheet.Range("A3").Text = "Austin"
    worksheet.Range("A4").Text = "Dallas"
    worksheet.Range("A5").Text = "Houston"
    worksheet.Range("A6").Text = "San Antonio"
 
    worksheet.Range("B3").Number = 53.75
    worksheet.Range("B4").Number = 52.85
    worksheet.Range("B5").Number = 59.77
    worksheet.Range("B6").Number = 96.15
 
    worksheet.Range("C3").Number = 79.79
    worksheet.Range("C4").Number = 59.22
    worksheet.Range("C5").Number = 10.09
    worksheet.Range("C6").Number = 73.02
 
    worksheet.Range("D3").Number = 26.72
    worksheet.Range("D4").Number = 33.71
    worksheet.Range("D5").Number = 45.81
    worksheet.Range("D6").Number = 12.17
 
    'Adding a New (Embedded chart) to the Worksheet 
    Dim shape As IChartShape = worksheet.Charts.Add()
    shape.ChartType = ExcelChartType.Column_Clustered
    shape.DataRange = worksheet.Range("B3:D6")
    shape.IsSeriesInRows = False
    shape.PrimaryCategoryAxis.Title = "City"
    shape.PrimaryCategoryAxis.CategoryLabels = worksheet("A3:A6")
    shape.PrimaryValueAxis.Title = "Sales (in Dollars)"
    shape.ChartTitle = "Texas Books Unit Sales"
    shape.HasDataTable = True
 
    'Setting the serie names
    Dim serieOne As IChartSerie = shape.Series(0)
    serieOne.Name = "Jan"
    Dim serietwo As IChartSerie = shape.Series(1)
    serietwo.Name = "Feb"
    Dim seriethree As IChartSerie = shape.Series(2)
    seriethree.Name = "March"
 
    'Changing the series color
    serietwo.DataPoints.DefaultDataPoint.DataFormat.AreaProperties.ForegroundColorIndex = ExcelKnownColors.Red
 
    'Save the file
    workbook.SaveAs("Output.xlsx")
 
    System.Diagnostics.Process.Start("Output.xlsx")
End Using

 

A complete Windows Forms working example of how to change Excel chart series color in C# and VB can be downloaded from Change Excel Chart Series Color.zip.

By executing the program, you will get the output Excel file as shown below.

Output Excel document

Refer here to explore the rich set of Syncfusion Excel (XlsIO) library features.

See Also:

How to change the color of single Data point in XlsIO chart?

How to apply or change colors in Excel pie chart?

How can I change the font color of the title in Chart?

How to set gap width to chart series?

How to split the series of pie of pie chart using XlsIO?

How to filter Excel chart series in C#, VB.NET?

How to set trendlines for Excel chart series in C#, VB.NET?

Note:

Starting with v16.2.0.x, if you reference Syncfusion assemblies from trial setup or from the NuGet feed, include a license key in your projects. Refer the link to learn about generating and registering Syncfusion license key in your application to use the components without trail message.

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