这是我的编码。它显示错误 在提供程序连接上启动事务时发生错误。有关详细信息,请参阅内部异常。
DemoEntities db = DemoEntities.CreateNewDemoEntity();
var query = (from f in db.Product_Table
where f.ReportID == reportID && f.StateID == stateID
select f);
foreach(var q in query)
{
Custom_Search_Transformation cst = new Custom_Search_Transformation()
{
CustomerID = customerID,
StateID = stateID,
FullProductID = q.FullProductID
};
db.Custom_Search_Transformation.AddObject(cst);
db.SaveChanges();
}
答案 0 :(得分:11)
db.SaveChanges();
应该超出foreach
循环:
DemoEntities db = DemoEntities.CreateNewDemoEntity();
var query = (from f in db.Product_Table
where f.ReportID == reportID && f.StateID == stateID
select f);
foreach(var q in query)
{
Custom_Search_Transformation cst = new Custom_Search_Transformation()
{
CustomerID = customerID,
StateID = stateID,
FullProductID = q.FullProductID
};
db.Custom_Search_Transformation.AddObject(cst);
}
db.SaveChanges();
答案 1 :(得分:8)
将您的可查询列表设为.ToList()它应该可以正常工作。