Good Code

Before you finish this unit, it is important for you to understand that when writing code it should be readable and easily understandable by other people and by yourself after a long period of time. Following are some guidelines for writing good code:

• Use meaningful names for your variables

• Always declare variables in a Dim statement

• Use indentation of logical blocks of code to make start and end of loops etc clearer

• Use empty lines between blocks of code that are logically different eg between blocks of code doing one task and the next block doing something different

• Use comments in your code explaining what each part is doing

• At the beginning of your code write comments with the names of all programmers and the date of creation and any major updates

VB Index

Starting a new Project Parts of the VB window Saving Projects Printing out your projects Making Standalone Programs Events and Procedures Controls, Properties, Events, Procedures defined Adding Controls (Objects) to the interface Naming Controls - Conventions Properties - setting Setting Form Width Adding Buttons and setting their properties Text Boxes Pictures  Lines and Shapes Labels - Autosize, Wordwrap Radio Buttons Scroll Bars Message Boxes Input Boxes Boolean Logic VB Colours and RGB values Errors and Bugs Comment Lines

Variables What are Variables  Rules for Naming Variables Declaring Variables Variable Types Variable Scope Conditional Operators, Comparing < = > etc Logical Operators  For...Next Loop Using Counters If... Then... Else Do...While Loops Random Numbers Val - converting strings to numeric data Multiple Forms - creating backgrounds for your projects Getting the user's name Animation Using the Timer Control Measuring elapsed time Activities A First Program (Beep) Die Rolling Simulation Coin Flipping Simulation Temperature Converter

This page has been produced by Margaret Meijers.  Questions or feedback may be directed by email to mmeijers at ictmindtools.net

 
This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.5 License.
Attribution should include the statement: "This has been adapted from a resource originally created by Margaret Meijers at http://ictmindtools.net"