To/From Code

	Languages
BROWSEBYLANGUAGE Access VBA ASP Classic C# C++ C++/CLI Corel Paradox Delphi Delphi Prism Java JavaScript Perl PHP VB Classic VB.Net

	Categories
BROWSEBYCATEGORY +Tool Basics +Language Basics +Language Details +Data Structures +Statements +Operators +Commands +Database +OOP Basics +OOP Details

	VB.Net Guides
VB.Net To/From Conversion Guides VB.Net and Access VBA VB.Net and C# VB.Net and C++ VB.Net and C++/CLI VB.Net and Corel Paradox VB.Net and Delphi VB.Net and Delphi Prism VB.Net and Java VB.Net and JavaScript VB.Net and Perl VB.Net and PHP VB.Net and VB Classic

Cross Ref Guide

VB.NETLANGUAGE

VB.Net

VB.NETANDASP CLASSICTOC

Overview

+Tool Basics

Report Tools Overview

+Language Basics

Comments◄╣

+Language Details

+Data Structures

Array

+Statements

+Operators

+Commands

+OOP Basics

+OOP Details

	Members-Only
Sign in to see member-only pages.

► KB ► To/From Guides ► VB.Net

Print This

Comments (VB.Net and ASP Classic Cross Reference Guide)

By Mike Prestwood

VB.Net versus ASP Classic: A side by side comparison between VB.Net and ASP Classic.

Language Basics

Language basics is kind of a catch all for absolute beginner stuff. The items (common names) I chose for language basics is a bit random and include items like case sensitivity, commenting, declaring variables, etc.

Comments

[Other Languages]

Languages Focus

Commenting code generally has three purposes: to document your code, for psuedo coding prior to coding, and to embed compiler directives. Most languages support both a single line comment and a multiple line comment. Some languages also use comments to give instructions to the compiler or interpreter.

VB.Net: ' or REM

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

Syntax Example:

'Single line comment.

REM Old school single line comment.

VB.Net Comments (' or REM) 2 certification questions.

ASP Classic: ' or REM

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.

Syntax Example:

'Single line comment.

REM Old school single line comment.

Common Preprocessor Directives include:

<%@LANGUAGE=VBScript%>

<!-- #Include File="includes.inc" -->

ASP Classic Comments (' or REM)