Add Excel chart data labels with formula in C#, VB.NET using XlsIO
Syncfusion Excel (XlsIO) library is a .NET Excel library used to create, read, and edit Excel documents. Also, converts Excel documents to PDF files. This article explains how to add Excel chart data labels with formula in C#, VB.NET using XlsIO.
Steps to add Excel chart with formula, 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 (versions after 18.2.0.44) as reference to your .NET Framework application from NuGet.org.
Install XlsIO NuGet package
Step 3: Include the following namespaces in the Program.cs file.
C#
using Syncfusion.XlsIO;
VB.NET
Imports Syncfusion.XlsIO
Step 4: Use the following code snippet to set a formula as data label text in Excel using C# and VB.NET.
C#
//Create an instance of ExcelEngine
using (ExcelEngine excelEngine = new ExcelEngine())
{
//Instantiate the application object
IApplication application = excelEngine.Excel;
application.DefaultVersion = ExcelVersion.Excel2016;
//Create a workbook
IWorkbook workbook = application.Workbooks.Create(1);
IWorksheet sheet = workbook.Worksheets[0];
//Enter values to the cells from A1 to C6
sheet.Range["A1"].Text = "Month";
sheet.Range["B1"].Text = "Product A";
sheet.Range["C1"].Text = "Product B";
sheet.Range["A2"].Text = "Jan";
sheet.Range["A3"].Text = "Feb";
sheet.Range["A4"].Text = "Mar";
sheet.Range["A5"].Text = "Apr";
sheet.Range["A6"].Text = "May";
sheet.Range["B2"].Number = 111;
sheet.Range["B3"].Number = 361;
sheet.Range["B4"].Number = 336;
sheet.Range["B5"].Number = 40;
sheet.Range["B6"].Number = 219;
sheet.Range["C2"].Number = 182;
sheet.Range["C3"].Number = 283;
sheet.Range["C4"].Number = 406;
sheet.Range["C5"].Number = 449;
sheet.Range["C6"].Number = 337;
//Create a chart
IChartShape chart = sheet.Charts.Add();
chart.ChartType = ExcelChartType.Line;
chart.DataRange = sheet.Range["A1:C6"];
//Set formula as data label text
chart.Series[0].DataPoints[0].DataLabels.IsFormula = true;
chart.Series[0].DataPoints[0].DataLabels.Text = "='Sheet1'!$A$2";
//Save the workbook
workbook.SaveAs("Output.xlsx");
workbook.Close();
}
VB.NET
'Create an instance of ExcelEngine
Using excelEngine As ExcelEngine = New ExcelEngine()
'Instantiate the application object
Dim application As IApplication = excelEngine.Excel
application.DefaultVersion = ExcelVersion.Excel2016
'Create a workbook
Dim workbook As IWorkbook = application.Workbooks.Create(1)
Dim sheet As IWorksheet = workbook.Worksheets(0)
'Enter values to the cells from A1 to C6
sheet.Range("A1").Text = "Month"
sheet.Range("B1").Text = "Product A"
sheet.Range("C1").Text = "Product B"
sheet.Range("A2").Text = "Jan"
sheet.Range("A3").Text = "Feb"
sheet.Range("A4").Text = "Mar"
sheet.Range("A5").Text = "Apr"
sheet.Range("A6").Text = "May"
sheet.Range("B2").Number = 111
sheet.Range("B3").Number = 361
sheet.Range("B4").Number = 336
sheet.Range("B5").Number = 40
sheet.Range("B6").Number = 219
sheet.Range("C2").Number = 182
sheet.Range("C3").Number = 283
sheet.Range("C4").Number = 406
sheet.Range("C5").Number = 449
sheet.Range("C6").Number = 337
'Create a chart
Dim chart As IChartShape = sheet.Charts.Add()
chart.ChartType = ExcelChartType.Line
chart.DataRange = sheet.Range("A1:C6")
'Set formula as data label text
chart.Series(0).DataPoints(0).DataLabels.IsFormula = True
chart.Series(0).DataPoints(0).DataLabels.Text = "='Sheet1'!$A$2"
'Save the workbook
workbook.SaveAs("Output.xlsx")
workbook.Close()
End Using
A complete working example to add Excel chart data labels with formula in C#, VB.NET using XlsIO can be downloaded from Add Excel chart data labels with formula.zip.
By executing the program, you will get the output as below.
Output Excel document
Refer here to explore the rich set of Syncfusion Excel (XlsIO) library features.
See Also:
How to convert Excel to PDF in C#, VB.NET
How to Export and Save Excel Chart as Image
How to convert Syncfusion’s WinForms chart to Excel chart using XlsIO
How to copy and insert a chart in the same worksheet using C#,VB.NET?
How to create Excel line with markers chart in C#, VB.NET?
Format Excel chart data label in C#, VB.NET
How can I change the font color of the title in chart?
Add image to Excel header in C#, VB.NET
How to create Excel combination chart in C#, VB.NET?
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 trial message.
