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Merge Excel cells in C#, VB.NET

Platform: WinForms |
Control: XlsIO |
Published Date: November 30, 2015 |
Last Revised Date: June 13, 2019

Syncfusion Excel (XlsIO) library is a .NET Excel library used to create, read, and edit Excel documents. Using this library, you can merge Excel cells in C# and VB.NET.

Merged cell is a single cell created by combining or merging two or more individual cells together. It is easy to merge the cells by using Merge() method associated with the IRange.

Steps to add image to Excel header programmatically:

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

Create Console application in Visual Studio

Create a new C# console application

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

Add XlsIO reference to the project

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 create Excel file with simple text.

C#

//Create an instance of ExcelEngine
using (ExcelEngine excelEngine = new ExcelEngine())
{
  //Set the default application version as Excel 2016
  excelEngine.Excel.DefaultVersion = ExcelVersion.Excel2016;
 
  //Create a workbook with a worksheet
  IWorkbook workbook = excelEngine.Excel.Workbooks.Create(1);
 
  //Access first worksheet from the workbook instance
  IWorksheet worksheet = workbook.Worksheets[0];
 
  worksheet.Range["C6"].HorizontalAlignment = ExcelHAlign.HAlignCenter;
 
  worksheet.Range["C6"].Text = "Merging the cells in XlsIO";
 
  //Merge the Cells
  worksheet.Range["C6:H6"].Merge();
  
  //Save the workbook to disk in xlsx format
  workbook.SaveAs("Output.xlsx");
}

 

VB.NET

'Create an instance of ExcelEngine
Using excelEngine As ExcelEngine = New ExcelEngine
 
  'Set the default application version as Excel 2016
  excelEngine.Excel.DefaultVersion = ExcelVersion.Excel2016
 
  'Create a workbook with a worksheet
  Dim workbook As IWorkbook = excelEngine.Excel.Workbooks.Create(1)
 
  'Access first worksheet from the workbook instance
  Dim worksheet As IWorksheet = workbook.Worksheets(0)
 
  worksheet.Range("C6").HorizontalAlignment = ExcelHAlign.HAlignCenter
 
  worksheet.Range("C6").Text = "Merging the cells in XlsIO"
            
  'Merge the Cells
  worksheet.Range("C6:H6").Merge()
 
  'Save the workbook to disk in xlsx format
  workbook.SaveAs("Output.xlsx")
 
End Using

 

A complete working example of how to add image to Excel header in C#/VB.NET can be downloaded from Merge-Excel-Cells.zip.

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

Output Excel document

Output Excel document

Take a moment to peruse the documentation, where you can find basic worksheet data manipulation options along with features like Conditional Formatting, worksheet calculations through Formulas, adding Charts in worksheet or workbook, organizing and analyzing data through Tables and Pivot Tables, appending multiple records to worksheet using Template Markers, and most importantly PDF and Image conversions with code examples.

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

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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