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  1. #1
    New to the CF scene
    Join Date
    Aug 2005
    Thanked 0 Times in 0 Posts

    What if URL Variable Doesn't exist ?

    Hi - I have a simple script that I use to open a file in a frameset based on the variable passed in the URL. What it does is take the URL= variable and set that as the main frameset. The only problem is if the page doesn't exist I get a 404 error.

    I'd like to enhance it a bit more and if the file doesn't exist I would also like to set the URL Variable to my main.htm page.

    I know in JavaScript you check for the existence of the file, but I'm not sure what the.asp code is to validate this ---- Would appreciate any guidance - the script is below



    <% If Request.QueryString("URL") = "" Then URL = "welcome.htm" Else URL = Request.QueryString("URL") End If %>

    <frameset framespacing="0" border="false" frameborder="0" rows="85,*">
    <frame name="top" scrolling="no" src="top.htm" marginwidth="0" marginheight="0" target="main">
    <frame name="main" src="<%= URL %>">

    text Here

  • #2
    Senior Coder nikkiH's Avatar
    Join Date
    Jun 2005
    Near Chicago, IL, USA
    Thanked 32 Times in 31 Posts
    You'd have to use the Scripting.FileSystemObject object and the FileExists function.

    If this post contains any code, I may or may not have tested it. It's probably just example code, so no getting knickers in a bunch over a typo, OK? If it doesn't have basic error checking in it, such as object detection or checking if objects are null before using them, put that in there. I'm giving examples, not typing up your whole app for you. You run code at your own risk.
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  • #3
    New Coder
    Join Date
    Aug 2005
    Thanked 0 Times in 0 Posts
    If you have access to IIS on your web server, you can set the default 404 file not found action to go to your home page instead of the standard 404 error page.
    Gee! Web Tools
    Web Content Management / Internet Marketing modules including:
    Page Editor - Calendar Manager - News Editor - Contact Organizer - Mail Wizard


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