System.ArgumentException: 该行已经属于另一个表。看下面代码

Posted 2023-03-13

public List<DataTable> get_index_newslist()

DataTable dt1 = new DataTable();
DataTable dt2 = new DataTable();
List<DataTable> listDataTable = new List<DataTable>();
string sql = "select top 14 id,title,attime from news order by id desc";
DataTable dt = DbHelperSQL.ExecuteDataSet(sql).Tables[0];
for (int i = 0; i < dt.Rows.Count; i++)

if (i < 7)
dt1.Rows.Add(dt.Rows[i]);
else
dt2.Rows.Add(dt.Rows[i]);

listDataTable.Add(dt1);
listDataTable.Add(dt2);
return listDataTable;

参考技术A public List<DataTable> get_index_newslist()

DataTable dt1 = new DataTable();
DataTable dt2 = new DataTable();
List<DataTable> listDataTable = new List<DataTable>();
string sql = "select top 14 id,title,attime from news order by id desc";
DataTable dt = DbHelperSQL.ExecuteDataSet(sql).Tables[0];
for (int i = 0; i < dt.Rows.Count; i++)

if (i < 7)
dt1.Rows.Add(dt.Rows[i].ItemArray);
else
dt2.Rows.Add(dt.Rows[i].ItemArray);

listDataTable.Add(dt1);
listDataTable.Add(dt2);
return listDataTable;