How to display "Count of the Login users in mvc3 view

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Hi,

I have to display the count of logging users in home page after login, that should be display for all users.like Total login users are: 1 / 2/.. based on users count.

I have used Application["UserCount"] variable and test in different browsers.
when i login that has display count perfectly but when i logout that have been maintaining in Application variable.

Example:

Login

logging users 1

in another browser
login

logging users 2

in another browser
login

logging users 3

after that logout final one

but the application is maintaing previous value and display logging users 4

so i need to decrease the logging users when i logout

Here is my code:

C#

public static int count = 0;  //for count of visitors

public void Application_Start(Object sender, EventArgs e)
{
    Application["myCount"] = count;
    AreaRegistration.RegisterAllAreas();
        
    RegisterGlobalFilters(GlobalFilters.Filters);
    RegisterRoutes(RouteTable.Routes);
    ValueProviderFactories.Factories.Add(new JsonValueProviderFactory());
}

public void Application_End(Object sender, EventArgs e)
{
    Application["myCount"] = Application["myCount"];
}

public void Session_Start(Object sender, EventArgs e)
{
    count = Convert.ToInt32(Application["myCount"]);
    Application["myCount"] = count + 1;
}

public void Session_End(Object sender, EventArgs e)
{
    if (Session["PNetUserName"]!=null)
    {
        Session.Abandon();
        Session.Clear();
        Application["myCount"] = count - 1;
        count = Convert.ToInt32(Application["myCount"]);
    }
}

Please help how to resolve this.

Thank you.

Posted 30-Aug-13 3:12am

DGKumar

Updated 30-Aug-13 6:04am

LazyTarget

v3

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LazyTarget · Answer 1 · 2013-08-30T06:01:00

You can simplfy the setting of your count variable by using it as a property, which I believe will also solve your problem.

C#

public static int Count
{
    get
    { 
        return Application["myCount"] != null
                       ? Convert.ToInt32(Application["myCount"] 
                       : 0;
    }
    set { Application["myCount"] = value; }
}

Then simply use the short hand operators for incrementing and decrementing the counter:

C#

public void Session_Start(Object sender, EventArgs e)
{
    Count++;
}

public void Session_End(Object sender, EventArgs e)
{
    if (Session["PNetUserName"]!=null)
    {
        Session.Abandon();
        Session.Clear();
        Count--;
    }
}