C＃会议"未将对象引用设置到对象的实例&QUOT。

问题描述

我有一个ASHX文件：

I have an ASHX file:

对象引用未设置为一个对象的
实例

在该行：

HttpContext.Current.Session["loggedIn"] = true

这是我如何使用会话是否正确？

Is this how I use sessions properly?

推荐答案

我猜想，会话是这里的罪魁祸首;这里参考，你可能想尝试添加：IRequiresSessionState 来处理程序（代码隐藏的ASHX）。所以，你应该是这样的：

I would guess that Session is the culprit here; with reference here, you might want to try adding : IRequiresSessionState to your handler (the code-behind for the ashx). So you should have something like:

public class Handler1 : IHttpHandler, System.Web.SessionState.IRequiresSessionState
{

    public void ProcessRequest(HttpContext context)
    {
        context.Response.ContentType = "text/plain";
        context.Response.Write("Hello World");
        context.Session["loggedIn"] = true;
    }

    public bool IsReusable
    {
        get
        {
            return false;
        }
    }
}

还请注意，它更容易去跟背景传入，但 HttpContext.Current 应该工作了。

Note also that it is easier to talk to the context passed in, but HttpContext.Current should work too.

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