EasyXLS

How to merge cells in VB.NET

'------------------------------------------------------------------------------------
' Tutorial 10
'
' This tutorial shows how to export an Excel file with a merged cell range in VB.NET.
'------------------------------------------------------------------------------------
Click here to see the Excel file

Imports EasyXLS

Module Tutorial10

    Sub Main()

        Console.WriteLine("Tutorial 10" & vbCrLf & "----------" & vbCrLf)

        ' Create an instance of the class that exports Excel files
        Dim workbook As New ExcelDocument(1)

        ' Get the table of data for the worksheet
        Dim xlsFirstTab As ExcelWorksheet = workbook.easy_getSheet("Sheet1")
        Dim xlsTable = xlsFirstTab.easy_getExcelTable()

        ' Merge cells by range
        xlsTable.easy_mergeCells("A1:C3")

        ' Export Excel file
        Console.WriteLine("Writing file C:\Samples\Tutorial10.xls.")
        workbook.easy_WriteXLSFile("C:\Samples\Tutorial10.xls")

        ' Confirm export of Excel file
        Dim sError As String = workbook.easy_getError()
        If (sError.Equals("")) Then
            Console.Write(vbCrLf & "File successfully created. Press Enter to Exit...")
        Else
            Console.Write(vbCrLf & "Error encountered: " & sError & vbCrLf & "Press Enter to Exit...")
        End If
        
        ' Dispose memory
        workbook.Dispose()
        
        Console.ReadLine()

    End Sub

End Module

EasyXLS Excel libraries:

.NET
Excel Library for VB.NET
full .NET version to import, export or convert Excel files
Excel Writer for VB.NET
.NET version to create and export Excel files
Download EasyXLS™ Excel Library for VB.NET

File formats:

MS Excel 97 - 2003
MS Excel 2007 - 2010
MS Excel 2013
MS Excel 2016
MS Excel 2019
XLS XLSX XLSM XLSB
XML HTML CSV TXT