winform数据导出CSV
.csv是一种逗号分隔值文件格式，其文件以纯文本模式存储表格数据（数字和文本）。CSV文件由任意数目的记录组成，记录间以某种换行符分隔；每条记录由字段组成，字段间的分隔符是其它字符或字符串，最常见的是逗号或制表符。通常，所有记录都有完全相同的字段序列。通常都是纯文本文件。
/// <summary>/// 数据导出/// </summary>/// <param name="dataGridView"></param>/// <returns></returns>private bool dataGridViewToCSV(DataGridView dataGridView){ if(dataGridView.Rows.Count == 0) { MessageBox.Show("没有数据可导出!", "提醒", MessageBoxButtons.OK, MessageBoxIcon.Information); return false; } SaveFileDialog saveFileDialog = new SaveFileDialog(); saveFileDialog.Filter = "CSV files (*.csv)|*.csv"; saveFileDialog.FilterIndex = 0; saveFileDialog.RestoreDirectory = true; saveFileDialog.CreatePrompt = true; saveFileDialog.FileName = null; saveFileDialog.Title = "保留"; DateTime now = DateTime.Now; saveFileDialog.FileName = now.Year.ToString().PadLeft(2) + now.Month.ToString().PadLeft(2, '0') + now.Day.ToString().PadLeft(2, '0') + "-" + now.Hour.ToString().PadLeft(2, '0') + now.Minute.ToString().PadLeft(2, '0') + now.Second.ToString().PadLeft(2, '0'); if(saveFileDialog.ShowDialog() == DialogResult.OK) { Stream stream = saveFileDialog.OpenFile(); StreamWriter sw = new StreamWriter(stream, System.Text.Encoding.GetEncoding(-0)); string strLine = ""; try { //表头 for(int i = 0; i < dataGridView.ColumnCount; i++) { if(i > 0) strLine += ","; strLine += dataGridView.Columns[i].HeaderText; } strLine.Remove(strLine.Length - 1); sw.WriteLine(strLine); strLine = ""; //表的内容 for(int j = 0; j < dataGridView.Rows.Count; j++) { strLine = ""; int colCount = dataGridView.Columns.Count; for(int k = 0; k < colCount; k++) { if(k > 0 && k < colCount) strLine += ","; if(dataGridView.Rows[j].Cells[k].Value == null) strLine += ""; else { string cell = dataGridView.Rows[j].Cells[k].Value.ToString().Trim(); //避免外面含有特殊符号 cell = cell.Replace("\"", "\"\""); cell = "\"" + cell + "\""; strLine += cell; } } sw.WriteLine(strLine); } sw.Close(); stream.Close(); MessageBox.Show("数据被导出到：" + saveFileDialog.FileName.ToString(), "导出结束", MessageBoxButtons.OK, MessageBoxIcon.Information); } catch(Exception ex) { MessageBox.Show(ex.Message, "导出谬误", MessageBoxButtons.OK, MessageBoxIcon.Information); return false; } } return true;}