/// </summary>
/// <param name="dt">源数据DataTable</param>
/// <param name="condition">查询条件</param>
/// <returns></returns>
private DataTable GetNewDataTable(DataTable dt, string condition)
{
DataTable newdt = new DataTable();
newdt = dt.Clone();//只复制表结构
DataRow[] dr = dt.Select(condition);//查询出满足条件的dr
for (int i = 0; i < dr.Length; i++)
{
newdt.ImportRow((DataRow)dr[i]);
// 改为newdt.ImportRow(dr[i]);也行 ,没试过
}
return newdt;//返回的查询结果
}
dt.Select()简单用法;
Select("id>='3' and name='3--hello'");//支持and
Select("id>='3' or id='1'");//支持or
Select("name like '%hello%'");//支持like
Select("id>5","id desc");
Select("id>5", "id desc",DataViewRowState.Added)
DataRow[] dr = dt.Select(“col='XXXX'”);//条件:就是字段名='某某'