Reading and Writing Values to the Application Object in ASP.NET

You can store the name of the server in application state using

Application("ServerName") ="WebFarm1"

.You can retrieve it and display its value by

using MyLabel.Text=Application("ServerName").ToString(). Because it returns the

server name as an object, you need to convert it to a string using the .ToString()

method before assigning it to MyLabel.Text.The ASPX page is as follows:

<html>

<body>

<asp:Label ID="MyLabel" Runat="server"/>

</form>

</body>

</html>

In <script runat="server" /> block or codebehind:

Sub Page_Load(sender As Object, e As EventArgs)

Application.Lock()

Application("ServerName")="WebFarm1"

Application.UnLock()

MyLabel.Text=Application("ServerName").ToString()

End Sub

Comments

Application state is useful for storing values that you need to access throughout your

application. Once a value is added to application state, it exists for the life of the application.

Because multiple pages can attempt to write to the Application collection simultaneously,

it must be locked using Application.Lock prior to any writes.The lock is

released using Application.UnLock.The only time locking isn't necessary is in code

that isn't executed by multiple page requests, such as in Application_Start in the

global.asax.

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