Using IsNumeric to Validate Data Entry in MS Access

In this Microsoft Access tutorial, I will show you how to use the IsNumeric function to validate data entry, ensuring users input proper numeric values. Learn about VBA basics, input boxes, error handling, variable casting, and loop structures to improve your database functionality and avoid common data entry errors.

Zachary from Germantown, Maryland (a Gold Member) asks: I often need to print multiple copies of invoices. I have an InputBox that opens and asks the user how many copies they want. If they enter gibberish, like "1j4fjf" I get an error message. I know I can use On Error to bypass the error, but is there a better way?

Members

There is no extended cut, but here is the database download:

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Prerequisites

• Intro to VBA
• Variables
• If Then
• InputBox
• For Next Loop

Links

• Invoicing
• Error Handling
• Type Conversion

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Keywords

TechHelp Access, IsNumeric function, data validation, validate data entry, VBA, input box validation, error handling VBA, user input verification, numeric input check, If-Then statements, prevent input errors, validate numeric value, message box VBA, Access forms validation