C# npoi 从excel导入datagridviews 批量联网核查

            DataSet ds = new DataSet();
            OpenFileDialog openFileDialog = new OpenFileDialog();
            openFileDialog.Filter = "Excel 2003 *.xls |*.xls";
            openFileDialog.ShowDialog();

            if (openFileDialog.FileNames.Length == 0)
            {
                MessageBox.Show("请选择文件", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                return;
            }
           
            using (FileStream file = new FileStream(openFileDialog.FileName, FileMode.Open, FileAccess.Read))    //using里面为打开该文件后自动释放
            {
                HSSFWorkbook hSSFWorkbook = new HSSFWorkbook(file);
                dataGridView1.Rows.Clear();
                               
                DataTable data = new DataTable();
                data.Rows.Clear();
                data.Columns.Add("姓名", typeof(String));
                
                data.Columns.Add("身份证号", typeof(String));
                               
                try
                {
                  
                   for (int i = 0; i <= hSSFWorkbook.GetSheetAt(0).LastRowNum-1; i++)
                   {

                      
                      if (!string.IsNullOrEmpty(hSSFWorkbook.GetSheetAt(0).GetRow(i + 1).GetCell(0).StringCellValue))   //判断是否为空格或空值，不导入为空值的excel行
                      {
                        data.Rows.Add(hSSFWorkbook.GetSheetAt(0).GetRow(i + 1).GetCell(0), hSSFWorkbook.GetSheetAt(0).GetRow(i + 1).GetCell(1));   //导入excel
                      }
                                            
                       
                    } 
                }
                catch (Exception ea)
                {
                    MessageBox.Show("excel表格数据有误，请检查excel表格再试"+"

"+ea);
                    return;
                }

           
              
                this.dataGridView1.DataSource = data;

                dataGridView1.AllowUserToAddRows = false;
              

            }
            for (int i = 0; i < dataGridView1.Rows.Count; i++)     //给行标题标数量
            {
                dataGridView1.Rows[i].HeaderCell.Value = (i + 1).ToString();
                
            }