Prev Next

ASP Application

The Application object in ASP provides a global state that is shared across all users and sessions. It is ideal for storing data that is constant or needs to be shared among multiple users.

Key Topics

Storing Application Data

Example

<%
    Application("siteName") = "My ASP Website"
    Response.Write("Application data has been stored.")
%>

Explanation: This example stores a shared value, My ASP Website, in the application variable siteName.

Retrieving Application Data

Example

<%
    If Not IsEmpty(Application("siteName")) Then
        Response.Write("Welcome to " & Application("siteName") & "!")
    Else
        Response.Write("No application data found.")
    End If
%>

Explanation: This example retrieves and displays the value of the application variable siteName, if it exists.

Locking Application Data

Example

<%
    Application.Lock()
    Application("siteVisitors") = Application("siteVisitors") + 1
    Application.Unlock()
    Response.Write("Total Visitors: " & Application("siteVisitors"))
%>

Explanation: This example uses the Application.Lock and Application.Unlock methods to safely update a shared variable, ensuring data consistency.

Key Takeaways

  • The Application object is global and shared across all users.
  • It is ideal for storing constants and shared data, such as site-wide settings.
  • Use Lock and Unlock to avoid race conditions during updates.
Prev Next