Convert something to C#

Hi,
Can u tell me what is : Application("LastScheduledRun")

Take a look at this link. This is where I got the code.

http://www.asp101.com/articles/john/schedule/default.asp

And read under Method 1: Faking It

if(((TimeSpan)(Application["LastScheduledRun"] - DateTime.Now)).Days > 0)
{
   Response.Write("Do Something");

    Application.Lock();
    Application["LastScheduledRun"] = DateTime.Now;
    Application.Unlock();
}

       if (((TimeSpan)(Application["LastScheduledRun"] - DateTime.Now)).Days > 0) // Error      3      Operator '-' cannot be applied to operands of type 'object' and 'System.DateTime'
        {
            Response.Write("Do Something");

            Application.Lock();
            Application["LastScheduledRun"] = DateTime.Now;
            Application.UnLock();
        }

Label4.Text = (((TimeSpan)(Convert.ToDateTime(Application["LastScheduledRun"]) - DateTime.Now)).Days).ToString();
Always gives me the value:
-732509
Why? It should be bigger than 0 the first time I run the script on the server?

>Also make sure that you initialize Application["LastScheduledRun"] the first time.
I'm not sure about this.... When to do it? In the contructor? If I use the dev server in VS2005 does this work? Or must I use IIS to test this?

This code
Label4.Text = (((TimeSpan)(DateTime.Now - Convert.ToDateTime(Application["LastScheduledRun"]))).Days).ToString();
gives me
732511
After I refresh the page this one should be negative?

No - it depends on what the original value is in the  Application["LastScheduledRun"] variable.

You can set this in your global.aspx file when the application first loads.  Or you could set it on the page that uses it.  It is really up to you as to where it goes or when to do it.

But this is getting beyond the scope of the question.

The code provided is the translation of your code converted to C#.  How you decide to implement it or put it in different places is really up to you.

how to initialize Application["LastScheduledRun"] ?

Application["LastScheduledRun"] gives me the current time when hitting refresh. I have placed Label5.Text = Application["LastScheduledRun"].ToString(); in the Page_Load. I thought this should give me the last time I ran the page. Is that right?

If you set it to that then yes.

I'm not so sure about this one
Application["LastScheduledRun"]
yet

How long does this one contain what I have set it to? Until the server goes down?