在Global.asax中ASP.NET C＃中的Application_Error无法访问会话变量 [英] ASP.NET C# Application_Error in Global.asax cannot access Session variables

问题描述

我有我的错误处理的设置来跟踪所有的异常，写我们需要一个数据库中的信息，并通过电子邮件发送出去谁需要了解有关该错误，以解决它的开发者。当页面完全加载之前发生的错误，我遇到的问题是。在这种情况下，会话变量我想跟踪不在的Application_Error可用。所以，我这样做，这样我就不是我的错误处理得到一个错误，但必须有一个更好的办法。此外，如果在提交表单的出现页面加载和错误，则会话变量是可用的。

I have my error handling setup to track all exceptions and write the information we need to a database and email out the developers who need to know about the error in order to fix it. The problem I run into is when the error occurs before the page has fully loaded. In this case the session variables I want to track are not available in Application_Error. So I do the following so that I don't get an error in my error handling, but there has to be a better way. Also if the page loads and the error occurs on submission of the form then the session variables are available.

try
{
    user_name = System.Web.HttpContext.Current.Session["User_Name"].ToString();
    user_number = System.Convert.ToInt32(System.Web.HttpContext.Current.Session["User_Number"].ToString());
}
catch (Exception ex)
{
    user_number = 0; 
    user_name = "N/A";     
}

任何帮助是极大的赞赏。
谢谢！

Any help is greatly appreciated. Thanks!

推荐答案

有没有错，你在做什么，但一个

There's nothing wrong with what you're doing, although an

if ( null != System.Web.HttpContext.Current.Session )

会比你的try-catch块多外科手术。

would be more "surgical" than your try-catch block.

会议未初始化，直到AcquireRequestState事件添加，因此任何这点之前发生的错误将不会有会话变量。

Session is not initialized until the AcquireRequestState event, so any error occurring before this point will not have session variables available.

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