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Prestwood IT Newsletter Jul 2009 Issue - ASP Classic Edition

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Each month on or after the 1st, and only once a month, we will send you content from up to 5 community groups. If you select this ASP Classic group, you'll receive the following content below mixed in with the other groups you elect to include.

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  July 2009 - ASP Classic Edition Year 11 Issue 7  
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Expert guidance from working professionals!
Peter Gruenbaum
Technical Writing topic:
Survey on SDK Documentation
by Peter Gruenbaum

A survey was sent to software developers and other software professionals to ask what was important in SDK documentation and where they would like to see improvement. The results indicated that the current state of typical SDK documentation is "Fair", which was the middle choice of five ("Excellent" to "Unusable"). The answers to multiple choice questions indicated that overviews, API references, sample code, and tutorials were all considered high importance, whereas blogs and forums were considered less important. When asked to write what they considered important, sample code was mentioned in 61% of the responses and overviews were mentioned in 30% of the responses. Also mentioned as important were help getting started, explanations of why something should be used, accuracy of information, and the ability to find information easily.

IT Water-Cooler for Power-Users topic:
Stamp Out Spam
by Vicki Nelson

How to fight back against spam and reclaim your inbox. As you may know, the volume of spam messages sent across the Internet has reached epidemic levels. Some industry experts estimate that three out of every five e-mail messages that are sent today are spam. The spam epidemic is costing companies, professionals, and individual users considerable amounts of time, money, and resources.

What is spam, and what can I do about it? Spam is generally defined as an unsolicited mailing, usually sent to many recipients. Most spam is commercial advertising, often for dubious products, get-rich-quick schemes, or quasi-legal services. Spam costs the sender very little to send. Most of the costs are paid by the recipient or the carriers rather than the sender. Some effective methods for preventing your e-mail address from being captured, sold or abused by spammers in the full version of this article. Click the title to read more.






 ASP Classic Group Top 
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Language Basics topic (classic post):
ASP redirect http to https
by Mike Prestwood

To redirect from http to https, check the Request.ServerVariables HTTPS field and then use Response.Redirect if set to "off".


 Monthly ASP Classic Lesson
Tool Basics Topic:
Code Snippet of the Month

Commenting Code
ASP Classic, like all the VB-based languages, uses a single quote (') or the original class-style basic "REM" (most developers just use a quote). ASP Classic does NOT have a multiple line comment.

Preprocessor Directives - @ and #
An @ is used for preprocessor directives within ASP code (within <% %>) and a # is used for HTML-style preprocessor directives.

Note: ASP Classic does not support VB Classic's #If directive.

'Single line comment.
REM Old school single line comment.

 

Common Preprocessor Directives include:

<%@LANGUAGE=VBScript%>
<!-- #Include File="includes.inc" -->
ASP Classic Topic:
Documented Error of the Month: ASP Classic error 0208 : 80004005 (Generic request collection)
Error: error 'ASP 0208 : 80004005' Cannot use generic Request collection /_private/footer_content.inc, line 72 Cannot use the generic Request collection after calling BinaryRead.
Explanation:

Although you can use the generic request collection, as in Request("SomeValue"), for either Request.Form("SomeValue") or Request.QueryString("SomeValue"), it's best to avoid the generic request collection until it's really needed. The generic request collection causes problems in some circumstances. For example, you cannot call the generic request collection after a BinaryRead.

ASP Classic Topic:
Resource Link of the Month: VBScript Language Reference on Microsoft.com
The best resource for quickly looking up ASP Classic commands. Even better than having a reference book.
Language Details Topic:
Question:

What is the syntax in ASP Classic for using an associative array?


Answer:

Use a dictionary:

Dim StateList
 
set StateList = Server.CreateObject("Scripting.Dictionary")

StateList.Add "CA", "California"
 
Response.Write "NV is " & StateList("NV")

For more examples, refer to our ASP Classic Associative Array (Scripting.Dictionary) article.

Language Details Topic:
Tip of the Month
Although you can use the generic request collection, as in Request("SomeValue"), for either Request.Form("SomeValue") or Request.QueryString("SomeValue"), it's best to avoid the generic request collection until it's really needed. Use a For Each loop to loop through elements.


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