datagridview导出excel

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using System.IO; namespace DXGXGIS { class ExportToExcel { public void ExportDataGridViewToExcel(DataGridView dataGridview1) { SaveFileDialog saveFileDialog = new SaveFileDialog(); saveFileDialog.Filter = "Execl 文件(*.xls)|*.xls"; saveFileDialog.FilterIndex = 0; saveFileDialog.RestoreDirectory = true; saveFileDialog.CreatePrompt = true; saveFileDialog.Title = "导出Excel"; 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'); //saveFileDialog.ShowDialog(); if (saveFileDialog.ShowDialog() == DialogResult.OK) { Stream myStream; myStream = saveFileDialog.OpenFile(); StreamWriter sw = new StreamWriter(myStream, System.Text.Encoding.GetEncoding("gb2312")); string str = ""; string tempStr = string.Empty; try { //写标题 for (int i = 0; i < dataGridview1.ColumnCount; i++) { if (i > 0) { str += "/t"; } str += dataGridview1.Columns[i].HeaderText; } sw.WriteLine(str); //写内容 for (int j = 0; j < dataGridview1.Rows.Count - 1; j++) { for (int k = 0; k < dataGridview1.Columns.Count; k++) { if (k > 0) { tempStr += "/t"; } tempStr += dataGridview1.Rows[j].Cells[k].Value.ToString(); } sw.WriteLine(tempStr); tempStr = string.Empty; } sw.Close(); myStream.Close(); MessageBox.Show("导出成功！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information); } catch (Exception e) { MessageBox.Show(e.ToString(), "出现异常", MessageBoxButtons.OK, MessageBoxIcon.Error); } finally { sw.Close(); myStream.Close(); } } else { MessageBox.Show("导出失败!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning); } } } }