ASP Classic Coding Most Read KB Posts

How to use ASPMail to send email from your web site.

Use the scriptiing dictionary object which is available on later versions of ASP Classic (all still commonly in use). Both Access VBA and VB Classic use a collection for this but collections are not supported in ASP Classic.

In ASP Classic, you have to add an empty string to the value being compared in order to get consistent results. For example, add &"" to your string varilable or it's code equivalent &vbNullString. Then compare to an empty string or verify it's length to 0 with Len.

Response.Flush sends the contents of the buffer to the browser. This command is useful for showing a visitor something while slow loading pages load.

Use Application.Contents.RemoveAll and Session.Contents.RemoveAll

When an object instance is created from a class, ASP calls a special parameter-less sub named Class_Initialize. Since you cannot specify parameters for this sub, you also cannot overload it.

When a class is destroyed, ASP calls a special sub called Class_Terminate.

The End If is optional if you put your code on a single line.

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.

Same as VB. ASP Classic logical operators:

ASP classic uses the property keyword and special Get and Let methods to both get and set the values of properties.

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.

With ASP Classic, you simply copy your files to a web server that is capable of running ASP pages. This includes your .ASP pages along with supporting files such as images, include files, and database files.

Optionally, you can also deploy a global.asa file which is used to code certain events like application start, application end, session start, and session end.

The End If is optional if you put your code on a single line.

Response.Flush sends the contents of the buffer to the browser. This command is useful for showing a visitor something while slow loading pages load.

The following function demonstrates one technique for coding a Yes/No dropdown. It uses a for loop which can be expanded to handle more than the 3 states (Y, N, and blank).

Example of calling the function:

When an object instance is created from a class, ASP calls a special parameter-less sub named Class_Initialize. Since you cannot specify parameters for this sub, you also cannot overload it.

When a class is destroyed, ASP calls a special sub called Class_Terminate.