实体类 modelname = 数据源db.OrderDetails.First(d => d.age < 20);
数据源DB.OrderDetails.Remove(modelname);
db.SubmitChanges();
最重要是SubmitChanges(),OrderDetails.Remove 可以批量删除!
数据源DB.OrderDetails.Remove(modelname);
db.SubmitChanges();
最重要是SubmitChanges(),OrderDetails.Remove 可以批量删除!
{
context.ExecuteStoreCommand("DELETE FROM students WHERE id < {0}", 20);
}
db.表.DeleteAllOnSubmit(数据);
db.SubmitChanges();