Answer Posted / chandra prakash

Application state allows you to store global objects that can be accessed by any client. Application
state is based on the System.Web.HttpApplicationState class, which is provided in all web
pages through the built-in Application object.
Application state is similar to session state but the difference is that session state is user specific. It supports the same type of objects, retains
information on the server, and uses the same dictionary-based syntax. A common example
with application state is a global counter that tracks how many times an operation has been
performed by all the web application’s clients.
For example, you could create a Global.asax event handler that tracks how many sessions
have been created or how many requests have been received into the application. Or you can
use similar logic in the Page.Load event handler to track how many times a given page has
been requested by various clients. Here’s an example of the latter:
protected void Page_Load(Object sender, EventArgs e)
{
// Retrieve the current counter value.
int count = 0;
if (Application["HitCounterForOrderPage"] != null)
{
count = (int)Application["HitCounterForOrderPage"];
}
// Increment the counter.
count++;
// Store the current counter value.
Application["HitCounterForOrderPage"] = count;
lblCounter.Text = count.ToString();
}

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