在那里我应该声明在asp.net会话变量 [英] Where I should declare a session variable in asp.net

问题描述

我建立一个Asp.net应用。我需要保存一个哈希表中的会话。

I am building a Asp.net Application. I need to save a HashTable in a session.

在页面加载我写

 protected void Page_Load(object sender, EventArgs e)
{
    if (!Page.IsPostBack)
    {
       Session["AttemptCount"]=new Hashtable(); //Because of this line.
    }   
}

下面的问题是，当用户刷新页面，会话[AttemptCount]也得到刷新。 我想知道我应该声明

Here problem is, when a user refresh the page, session["AttemptCount"] also get refreshed. I want to know where should I declare

Session["AttemptCount"]=new Hashtable();

让我SEESION没有得到refeshed。

So that my seesion do not get refeshed.

修改在Global.asax中，本届会议将开始，为用户打开网站，很快。我想创造这个会议只有当用户进入一个特定的页面。即的Login.aspx

EDIT In Global.asax, this session will get started, as soon as user opens the website. I want to creat this session only if user go to a particular page. i.e Login.aspx

推荐答案

它别在你的在session_start 办法http://msdn.microsoft .COM / EN-US /库/ 2027ewzw.aspx> Global.asax中像这样...

Do it in the Session_Start method in your Global.asax like so...

protected void Session_Start(object sender, EventArgs e)
{
    Session["AttemptCount"]=new Hashtable();
}

更新：

然后简单的只是做一个检查，看看是否会话变量存在，如果它不只有创建变量。你可以把它贴在属性，使事情更清洁，像这样......

Then simply just do a check to see if the session variable exists, if it doesn't only then create the variable. You could stick it in a property to make things cleaner like so...

public Hashtable AttemptCount
{
    get 
    {
        if (Session["AttemptCount"] == null)
            Session["AttemptCount"]=new Hashtable();
        return Session["AttemptCount"];
    }
}

然后你可以只呼吁物业 AttemptCount 只要您需要像这样...

And then you could just call on the property AttemptCount wherever you need like so...

public void doEvent(object sender, EventArgs e)
{
    AttemptCount.Add("Key1", "Value1");
}

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