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var supplie = db.tb_supplies.Where(s => s.oid == id).SingleOrDefault();
if (supplie!=null)
{
supplie.otop = top;
supplie.oleft = left;
db.SubmitChanges();
return "success!";
}
为什么执行之后数据库的值没有改变。
var supplie = db.tb_supplies.Where(s => s.oid == id).SingleOrDefault();
if (supplie!=null)
{
supplie.otop = top;
supplie.oleft = left;
db.tb_supplies.InsertOnSubmit(supplie);
db.SubmitChanges();
return "success!";
}