常见的方法《二》

1、从Excel导入

 private void btnImport_Click(object sender, EventArgs e)//从Excel导入
        {
            DataTable dt = new DataTable();
            OpenFileDialog openFileDialog = new OpenFileDialog();
            openFileDialog.Filter = "EXCEL2003文件|*.xls|EXCEL2007文件|*.xlsx";

            openFileDialog.RestoreDirectory = true;
            openFileDialog.FilterIndex = 1;
            if (openFileDialog.ShowDialog() == DialogResult.OK)
            {
                dt = GetExcelDataTable(openFileDialog.FileName, "sheet");
                ImportExcel(dt);
            }
        }

Excel导入