1 /// <summary>
2 /// 获取对固定列不重复的新DataTable
3 /// </summary>
4 /// <param name="dt">含有重复数据的DataTable</param>
5 /// <param name="colName">需要验证重复的列名</param>
6 /// <returns>新的DataTable，colName列不重复，表格式保持不变</returns>
7 private DataTable GetDistinctTable(DataTable dt, string colName)
8 {
9 DataView dv = dt.DefaultView;
10 DataTable dtCardNo = dv.ToTable(true, colName);
11 DataTable Pointdt = new DataTable();
12 Pointdt = dv.ToTable();
13 Pointdt.Clear();
14 for (int i = 0; i < dtCardNo.Rows.Count; i++)
15 {
16 DataRow dr = dt.Select(colName + "='" + dtCardNo.Rows[i][0].ToString() + "'")[0];
17 Pointdt.Rows.Add(dr.ItemArray);
18 }
19 return Pointdt;
20 }
