存储项目在会话变量一篮子 [英] Storing items for a basket in session variables

问题描述

我要存储项目产品codeS与该用户的会话阵列内选择的数量沿着购物篮。

我不知道最简单，最适当的数据类型与当前数据存储在什么。

我得到的，我不能只是保存我自己的对象会话中的IM pression？

 产品code，数量
CQAR / HINCACOC，10
畜牧业协会/ VINNYMIN，20
 

我希望能够再次拉出来的值，以使它们被放置在篮子里。

我试过列表＆LT;字典＆LT;字符串，整数＆GT;＆GT; 和的ArrayList 但既不似乎工作打算

解决方案

可以，只要该对象（和它有任何对象依赖性）被标记为 [序列化] 。在这种情况下，你会：

  [Serializable接口]
公共类BasketItem
{
    公共字符串产品code {搞定;组; }
    公众诠释数量{搞定;组; }
}
 

然后，只需让这些对象的集合在你的会话存储，如列表与LT; BasketItem＆GT;

更新：想我会根据下面的评论澄清，因为它是正确的， [Serializable接口] 是的不如果会话被存储在进程/存储器所需。但是，如果该对象被存储在一个状态服务器/ SQL数据库因为对象必须序列/现场和会话存储之间反序列化，它是绝对必需的。

I want to store item product codes for a shopping basket along with the quantity that the user has chosen within a session array.

I don't know what the easiest and most appropriate data type is to store this data in.

I get the impression that I can't just store my own object in a session?

Product code, Quantity
CQAR/HINCACOC, 10
CAAA/VINNYMIN, 20

I wish to be able to pull the values out again in order that they were placed in the basket.

I tried List<Dictionary<string, int>> and ArrayList but neither seemed to work as intended.

解决方案

You can store your own custom list of objects in a session as long as that object (and any object dependencies it has) are marked as [Serializable]. In this case you would have:

[Serializable]
public class BasketItem
{
    public string ProductCode { get; set; }
    public int Quantity { get; set; }
}

Then just make a collection of these objects to store in your session, such as a List<BasketItem>

Update: thought I would clarify based on the comment below as it is correct, [Serializable] is not required if the session is stored in-process/memory. But it is definitely required if the object is being stored in a state server/SQL database since the object must be serialized/deserialized between the site and session store.

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