我在使用事务的 SQLite 中遇到了一个奇怪的错误,我无法弄清楚...... 下面是我的代码:
_connection.RunInTransaction(() =>
{
_connection.UpdateAll(objProposte);
foreach (Proposte objProposta in objProposte)
{
string propostaID = objProposta.PropostaID;
List<ProposteDetails> lstProdDet = _connection.Table<ProposteDetails>().Where(x => x.PropostaID == propostaID).ToList();
if (lstProdDet != null && lstProdDet.Count() > 0)
{
//AN UPDATE GIVE ME THE SAME ERROR
_connection.DeleteAll(lstProdDet);
_connection.InsertAll(lstProdDet);
}
}
});
似乎 _connection.UpdateAll(objProposte);工作正常,但是当我尝试在同一事务中执行其他操作时,出现以下异常:
System.ArgumentException: savePoint is not valid, and should be the result of a call to SaveTransactionPoint. Parameter name: savePoint
at SQLite.Net.SQLiteConnection.DoSavePointExecute (System.String savePoint, System.String cmd) [0x00063] in <8f2bb39aeff94a30a8628064be9c7efe>:0 at SQLite.Net.SQLiteConnection.Release (System.String savepoint) [0x00000] in <8f2bb39aeff94a30a8628064be9c7efe>:0 at SQLite.Net.SQLiteConnection.RunInTransaction (System.Action action) [0x0001d] in <8f2bb39aeff94a30a8628064be9c7efe>:0 at SQLite.Net.SQLiteConnection.InsertAll (System.Collections.IEnumerable objects, System.Boolean runInTransaction) [0x0001e] in <8f2bb39aeff94a30a8628064be9c7efe>:0
在互联网上阅读似乎与嵌套事务有关,但不是我的情况,因为都是在同一个事务中完成的。
谢谢, L-
编辑 28-05-2018 12:16:该配置有效......但应该执行与上述相同的操作:(
string my_transaction_point = null;
try
{
my_transaction_point = _connection.SaveTransactionPoint();
_connection.UpdateAll(objProposte, runInTransaction: false);
foreach (Proposte objProposta in objProposte)
{
string propostaID = objProposta.PropostaID;
List<ProposteDetails> lstProdDet = _connection.Table<ProposteDetails>().Where(x => x.PropostaID == propostaID).ToList();
if (lstProdDet != null && lstProdDet.Count() > 0)
{
_connection.DeleteAll(lstProdDet);
_connection.InsertAll(lstProdDet, runInTransaction: false);
}
}
_connection.Commit();
}
catch (Exception ex)
{
_connection.RollbackTo(my_transaction_point);
throw new Exception("UpdateProposta, " + ex.Message, ex);
}
最佳答案
.UpdateAll
默认情况下在其自己的事务中运行,您可以通过覆盖默认为 true
的第二个参数来关闭它:
_connection.RunInTransaction(() =>
{
_connection.UpdateAll(objProposte, false);
// perform the rest of your CRUD operations
~~~
~~~
});
关于c# - SQLite事务保存点问题,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/50562472/