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Create Function
By Richard Rost   Richard Rost on LinkedIn Email Richard Rost   4 years ago

Create Your Own Custom Function in Microsoft Access VBA

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In this video, I will show you how to create your own custom, user-defined functions in Microsoft Access VBA (Visual Basic for Applications). We will start with a subroutine, and then create a couple functions. We will create a random number generator, and functions to convert Celsius to Fahrenheit and vice versa. You will learn how to pass parameter values to functions, and have them return a value.

Michael in Louisville KY (a Gold Member) asks: I'm familiar with the built-in Access functions like Date() and Now(). Is there a way I can create my own custom functions to perform the specific calculations I need?


I'll show you how to create public functions and global modules so your functions can be used in every form, report, and query in your database. You will see how to set a lower bound for your random numbers, so you can, for example, generate random numbers from 10 to 20. We will build a dice roller where you can roll any number of multi-sided dice in sets. Very handy for you gamers and D&D players who want to generate character stats. (This one's for the nerds like me). 

Silver Members and up get access to view Extended Cut videos, when available. Gold Members can download the database template from class plus get access to the Code Vault. If you signed up on YouTube you have to register on my YouTube Find User page so I can set up your account here on my web site. If you're not a member, Join Today!


Intro to VBA:
Custom Functions:
Random Numbers:

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Comments for Create Function
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13 monthsAwesomeDan Jackson
2 yearsCustom FunctionDavid Clement


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Copyright 2024 by Computer Learning Zone, Amicron, and Richard Rost. All Rights Reserved. Current Time: 5/23/2024 8:59:21 AM. PLT: 1s
Keywords: TechHelp Access ms access create a function, calling a function in vba function return, vba function arguments, vba global function, writing a simple function, vba editor, code builder, msgbox, hello world, custom function, make your own function  PermaLink  Create Your Own Function in Microsoft Access