How to reverse Excel chart axis order in C#, VB.NET?
Syncfusion® Essential XlsIO is a .NET Excel library used to create, read, and edit Excel documents. Using this library, you can also reverse the chart axis plot order.
Steps to reverse chart axis order programmatically:
Chart axis order can be reversed by setting the ReversePlotOrder property of that particular axis to true.
C#
// Reverse chart axis order chart.PrimaryValueAxis.ReversePlotOrder = true; chart.PrimaryCategoryAxis.ReversePlotOrder = true;

Below is the list of some of the common properties that are used to format chart axis.
- CrossesAt
- NumberFormat
- Title
- IsReversed
- Visible
The following C#/ VB.NET complete code snippet shows how to reverse chart axis order 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.Column_Clustered;
// Assign data
chart.DataRange = worksheet["A1:D6"];
chart.IsSeriesInRows = false;
// Apply chart elements
// Set chart title
chart.ChartTitle = "Clustered Column Chart";
// Reverse chart axis order
chart.PrimaryValueAxis.ReversePlotOrder = true;
chart.PrimaryCategoryAxis.ReversePlotOrder = true;
// Set data labels
IChartSerie serie1 = chart.Series[0];
IChartSerie serie2 = chart.Series[1];
IChartSerie serie3 = chart.Series[2];
serie1.DataPoints.DefaultDataPoint.DataLabels.IsValue = true;
serie2.DataPoints.DefaultDataPoint.DataLabels.IsValue = true;
serie3.DataPoints.DefaultDataPoint.DataLabels.IsValue = true;
// Positioning the chart in the worksheet
chart.TopRow = 8;
chart.LeftColumn = 1;
chart.BottomRow = 23;
chart.RightColumn = 8;
// Saving 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.Column_Clustered
'Assign data
chart.DataRange = worksheet("A1:D6")
chart.IsSeriesInRows = False
'Apply chart elements
'Set chart title
chart.ChartTitle = "Clustered Column Chart"
'Reverse chart axis order
chart.PrimaryValueAxis.ReversePlotOrder = True
chart.PrimaryCategoryAxis.ReversePlotOrder = True
'Set data labels
Dim serie1 As IChartSerie = chart.Series(0)
Dim serie2 As IChartSerie = chart.Series(1)
Dim serie3 As IChartSerie = chart.Series(2)
serie1.DataPoints.DefaultDataPoint.DataLabels.IsValue = True
serie2.DataPoints.DefaultDataPoint.DataLabels.IsValue = True
serie3.DataPoints.DefaultDataPoint.DataLabels.IsValue = True
'Positioning the chart in the worksheet
chart.TopRow = 8
chart.LeftColumn = 1
chart.BottomRow = 23
chart.RightColumn = 8
'Saving the workbook
Dim stream As Stream = File.Create("Output.xlsx")
workbook.SaveAs(stream)
End Using
End Sub
End Class
End Namespace
Take a moment to peruse the documentation where you can find basic Excel document processing options along with the features like import and export data, chart, formulas, conditional formatting, data validation, tables, pivot tables and protect the Excel documents, and most importantly, the PDF, CSV and Image conversions with code examples.
A complete working example to reverse the chart axis order can be downloaded from ReverseOrder.zip.
Take a moment to peruse the documentation, where you will find other options like move or copy a worksheet, freeze, unfreeze and split panes, show or hide worksheet and worksheet tabs, page setup settings and more with code examples.
Click here to explore the rich set of Syncfusion Excel (XlsIO) library features.
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.
Conclusion
I hope you enjoyed learning about how to reverse Excel chart axis order in C#, VB.NET.
You can refer to our XIsIO’s feature tour page to learn about its other groundbreaking features. Explore our UG documentation and online demos to understand how to manipulate data in Excel documents.
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