[introtext]In traditional ASP we always had the Application object to store application-wide variables in. This of course cam at the price of memory allocations. In .NET we can now take advantage of Static Variables, which in most cases can be faster than accessing the Application object.[/introtext]In traditional ASP we always had the Application object to store application-wide variables in. This of course cam at the price of memory allocations. In .NET we can now take advantage of Static Variables, which in most cases can be faster than accessing the Application object.In .NET, most objects are actually classes, and Global.asax is no exception. To take advantage of this, we first have to give our Global.asax a Classname. We do this by adding the directive naming mine 'MyGlobals':
<%@ Application Classname="MyGlobals" %>
Then, we specify our Static Variable inside the script tags, using the 'Public' and 'Shared' keywords in the Global.asax:
VB
:
<Script language="vb" runat="server">
Public Shared sGreeting as String = "Visit HarrisonLogic.com!"
</Script>
C#
<Script language="C#" runat="server">
Public Static String sGreeting = "Visit HarrisonLogic.com!"
</Script>
Now that we have the variable 'sGreeting' set up, we can call it directly from our .aspx page using the Classname and the Variable name:
x
= MyGlobals.sGreeting
Give it a shot! The source code is below:[bold]Page1.aspx[/bold]
<% @Page Language="VB" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<script Language='vb' runat=server>
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Label1.Text = MyGlobals.sGreeting
End Sub
</script>
</HEAD>
<body>
<asp:label runat=server id=Label1></asp:label>
</body>
</HTML>
[bold]Global.asax[/bold]
<%@ Application Classname="MyGlobals" %>
<Script language="vb" runat="server">
Public Shared sGreeting as String = "Visit HarrisonLogic.com!"
</Script>
- Chris Harrison | DISCLAIMER: The content provided in this article is not warranted or guaranteed by Developer Shed, Inc. The content provided is intended for entertainment and/or educational purposes in order to introduce to the reader key ideas, concepts, and/or product reviews. As such it is incumbent upon the reader to employ real-world tactics for security and implementation of best practices. We are not liable for any negative consequences that may result from implementing any information covered in our articles or tutorials. If this is a hardware review, it is not recommended to open and/or modify your hardware. |
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