if (dataGridView1.Rows.Count == 0) { MessageBox.Show("No data available!", "Prompt", MessageBoxButtons.OK, MessageBoxIcon.Information); return; }else{ SaveFileDialog saveFileDialog = new SaveFileDialog(); saveFileDialog.Filter = "CSV files (*.csv)|*.csv"; saveFileDialog.FilterIndex = 0; saveFileDialog.RestoreDirectory = true; saveFileDialog.CreatePrompt = true; saveFileDialog.FileName = null; saveFileDialog.Title = "Save path of the file to be exported"; if (saveFileDialog.ShowDialog() == DialogResult.OK) { Stream myStream = saveFileDialog.OpenFile(); StreamWriter sw = new StreamWriter(myStream, System.Text.Encoding.GetEncoding(-0)); string strLine = ""; try { //Write in the headers of the columns. for (int i = 0; i < dataGridView1.ColumnCount; i++) { if (i > 0) strLine += ","; strLine += dataGridView1.Columns[i].HeaderText; } strLine.Remove(strLine.Length - 1); sw.WriteLine(strLine); strLine = ""; //Write in the content of the columns. for (int j = 0; j < dataGridView1.Rows.Count; j++) { strLine = ""; for (int k = 0; k < dataGridView1.Columns.Count; k++) { if (k > 0) strLine += ","; if (dataGridView1.Rows[j].Cells[k].Value == null) strLine += ""; else { string m = dataGridView1.Rows[j].Cells[k].Value.ToString().Trim(); strLine += m.Replace(",", "，"); } } strLine.Remove(strLine.Length - 1); sw.WriteLine(strLine); //Update the Progess Bar. // toolStripProgressBar1.Value = 100 * (j + 1) / dataGridView1.Rows.Count; } sw.Close(); myStream.Close(); MessageBox.Show("Data has been exported to：" + saveFileDialog.FileName.ToString(), "Exporting Completed", MessageBoxButtons.OK, MessageBoxIcon.Information); // toolStripProgressBar1.Value = 0; } catch (Exception ex) { MessageBox.Show(ex.Message, "Exporting Error", MessageBoxButtons.OK, MessageBoxIcon.Information); } }}