How to Export datagridview to Excel

The DataGridView control provides a customizable table for displaying data. Displaying data in a tabular format is a task you are likely to perform frequently. The DataGridView control is highly configurable and extensible, and it provides many properties, methods, and events to customize its appearance and behavior.

The following vb.net source code shows how to Export the content of a datagridview to an Excel file.

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Imports System.Data.SqlClient
Imports Excel = Microsoft.Office.Interop.Excel
Public Class Form1
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

        Dim connectionString As String = "Data Source=.;Initial Catalog=pubs;Integrated Security=True"
        Dim sql As String = "SELECT * FROM Authors"
        Dim connection As New SqlConnection(connectionString)
        Dim dataadapter As New SqlDataAdapter(sql, connection)
        Dim ds As New DataSet()
        connection.Open()
        dataadapter.Fill(ds, "Authors_table")
        connection.Close()
        DataGridView1.DataSource = ds
        DataGridView1.DataMember = "Authors_table"

    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        Dim xlApp As Excel.Application
        Dim xlWorkBook As Excel.Workbook
        Dim xlWorkSheet As Excel.Worksheet
        Dim misValue As Object = System.Reflection.Missing.Value

        Dim i As Int16, j As Int16

        xlApp = New Excel.ApplicationClass
        xlWorkBook = xlApp.Workbooks.Add(misValue)
        xlWorkSheet = xlWorkBook.Sheets("sheet1")


        For i = 0 To DataGridView1.RowCount - 2
            For j = 0 To DataGridView1.ColumnCount - 1
                xlWorkSheet.Cells(i + 1, j + 1) = DataGridView1(j, i).Value.ToString()
            Next
        Next

        xlWorkBook.SaveAs("c:\vb.net-informations.xls", Excel.XlFileFormat.xlWorkbookNormal, misValue, misValue, misValue, misValue, _
         Excel.XlSaveAsAccessMode.xlExclusive, misValue, misValue, misValue, misValue, misValue)
        xlWorkBook.Close(True, misValue, misValue)
        xlApp.Quit()

        releaseObject(xlWorkSheet)
        releaseObject(xlWorkBook)
        releaseObject(xlApp)

        MessageBox.Show("Over")
    End Sub


    Private Sub releaseObject(ByVal obj As Object)
        Try
            System.Runtime.InteropServices.Marshal.ReleaseComObject(obj)
            obj = Nothing
        Catch ex As Exception
            obj = Nothing
            MessageBox.Show("Exception Occured while releasing object " + ex.ToString())
        Finally
            GC.Collect()
        End Try
    End Sub

End Class