private void toolStripLabel3_Click(object sender, EventArgs e) { try { DialogResult queren = MessageBox.Show("读取的'EXCEL文件'后缀必须为.Xlsx,否则读取失败!", "系统提示!", MessageBoxButtons.YesNo); if (queren == DialogResult.Yes) { this.backgroundWorker1.RunWorkerAsync(); JingDu form = new JingDu(this.backgroundWorker1, "读取中");// 显示进度条窗体 form.ShowDialog(this); form.Close(); if (this.openFileDialog1.ShowDialog() == DialogResult.OK) { string path = openFileDialog1.FileName; if (!path.Equals(string.Empty)) { if (!File.Exists(path)) { MessageBox.Show("文件不存在!"); return; } IntPtr vHandle = _lopen(path, OF_READWRITE | OF_SHARE_DENY_NONE); if (vHandle == HFILE_ERROR) { MessageBox.Show("文件被占用!"); return; } CloseHandle(vHandle); if (path.Trim().Contains("xlsx")) { List <KuCun> list = cal.readerKucunExcel(path); DataTable dt = new DataTable(); dt.Columns.Add("Id", typeof(int)); for (int i = 0; i < dataGridView1.Columns.Count; i++) { if (!dataGridView1.Columns[i].HeaderCell.Value.ToString().Equals("Id")) { dt.Columns.Add(dataGridView1.Columns[i].HeaderCell.Value.ToString(), typeof(String)); } } foreach (KuCun s in list) { dt.Rows.Add(s.Id, s.PingMing, s.HuoHao, s.SeHao, s.ShuLiang, s.GongHuoFang, s.CunFangDI); } dataGridView1.DataSource = dt; MessageBox.Show("读取完成!"); } else { MessageBox.Show("读取失败!原因:读取文件后缀非'xlsx'"); } } } } } catch (Exception ex) { MessageBox.Show(ex.Message); } }