如何保存对象在C＃ASP.Net Sesssion一个数组？ [英] How do I save an array of objects in a C# ASP.Net Sesssion?

问题描述

我在我的C＃ASP.Net程序被回传时填写对象的数组，我希望下一次回传时恢复它们。为此我在默认的类定义的数组声明是这样保存的： -

I have in my C# ASP.Net program an array of objects that are filled in during a postback and I wish to recover them during the next postback. To this end I include the array declaration in the Default class definition which is saved thus:-

this.Session["This"] = this;

和恢复： -

Default saved_stuff = (Default) this.Session["This"];

这一切工作正常，除了： -

This works fine for everything apart from:-

MyClass [] my_array;

在恢复， saved_stuff.my_array 总是空。

MyClass的定义是这样的： -

MyClass is defined like this:-

public MyClass : ISerializable
{
    private string some_string;
    private double some_double;
    // some more simple members
    // Some getters and setters
    // ISerializable Implementation
}

我曾试图使 MyClass的实施 ISerializable的但这并没有什么差别。有谁知道我应该做的？

I have tried making MyClass implement ISerializable but that doesn't make any difference. Does anyone know what I should be doing?

修改回答@迈克尔的问题，那么我在做这样的事情...

Edit to answer @Michael's question, I'm then doing things like...

for (int i = 0; i <= saved_stuff.my_array.GetUpperBound(0); i++)
{
    // blah blah
}

这是与对象引用不设置为一个对象的一个​​实例失败。所有默认的其他成员变量是可见的 saved_stuff 时调试。

which is failing with "object reference is not set to an instance of an object". All the other member variables of Default are visible in saved_stuff when in debug.

推荐答案

您必须存储在它自己的会话对象的数组数据：

You have to store your array data in its own session object:

MyClass[] my_array = //Something

Session["ArrayData"] = my_array;

然后检索为：

var arrayData = (MyClass[])Session["ArrayData"];

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