Export Data Grid (datagridview) to Excel in VB.NET

Create the following method and pass it the DataGridView that you want to export.  This will export all grid contents (including column headers) to Excel and “freeze” the top row.

Note: The “prog_Progress” object is a ProgressBar I added to the application to display the progress of the export to the user.

[csharp]

private void ExportDataGridViewToExcel(DataGridView dgv)
{
// exit method if there are no records to export
if (dgv.RowCount == 0)
{
MessageBox.Show(“No data to export.”, “No Data”, MessageBoxButtons.OK, MessageBoxIcon.Stop);
return;
}

SaveFileDialog fd = new SaveFileDialog();

fd.OverwritePrompt = false;
fd.FileName = “Export-” + DateTime.Now.ToString(“yyyyMMdd.hhmm”) + “.xls”; // default file name
fd.Filter = “Excel (*.xls) |*.xls;*.xlsx”;

if (fd.ShowDialog() == DialogResult.OK) // only continue if user specified/selected a file
{
UpdateStatus(“Exporting data to Excel…”);

// create the Excel app
Microsoft.Office.Interop.Excel._Application xlApp = new Microsoft.Office.Interop.Excel.Application();

// create the Workbook
Microsoft.Office.Interop.Excel._Workbook xlWB = xlApp.Workbooks.Add();

// create the Worksheet
Microsoft.Office.Interop.Excel._Worksheet xlWS = (Microsoft.Office.Interop.Excel._Worksheet)xlWB.Worksheets[1];

try
{
// show the progress bar
prog_Progress.Visible = true;
prog_Progress.Style = ProgressBarStyle.Blocks;
prog_Progress.Maximum = dgv.RowCount – 1;

// export the column headers
for (int c = 0; c < dgv.ColumnCount; c++)
{
xlWS.Cells[1, c + 1] = dgv.Columns[c].HeaderText;
}

// bold and underline the first row
Microsoft.Office.Interop.Excel.Range rng = (Microsoft.Office.Interop.Excel.Range)xlWS.Rows[1];
rng.EntireRow.Font.Bold = true;
rng.EntireRow.Font.Underline = true;

// freeze the top row
xlApp.ActiveWindow.SplitRow = 1;
xlApp.ActiveWindow.FreezePanes = true;

// export the data in the DataGridView
for (int r = 0; r <= dgv.RowCount – 1; r++)
{
Application.DoEvents(); // prevent the app from “Not Responding”…
prog_Progress.Value = r; // update the Progress Bar

for (int c = 0; c <= dgv.ColumnCount – 1; c++)
{
xlWS.Cells[r + 2, c + 1] = dgv[c, r].Value;
}
}

xlWS.Columns.AutoFit(); // autofit the columns

xlWB.SaveAs(fd.FileName); // save the file

prog_Shares.Visible = false;

xlWB.Close();
xlWS = null;
xlWB = null;
xlApp.Quit();
fd = null;

MessageBox.Show(“Excel Workbook Created Successfully”, “Export Complete”, MessageBoxButtons.OK, MessageBoxIcon.Information);
UpdateStatus(“Export to Excel complete!”);
}
catch (Exception ex)
{
xlWB.SaveAs(fd.FileName); // save the file
xlApp.Quit(); // quit Excel
prog_Progress.Value = prog_Shares.Maximum;
MessageBox.Show(“Error exporting data to Excel.” + Environment.NewLine + ex.Message, “Export error”, MessageBoxButtons.OK, MessageBoxIcon.Error);
prog_Shares.Visible = false;
}
}
}

[/csharp]