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Learn how to set a limit on the number of times the message box displays in Microsoft Access for incorrect password entries to enhance your application's security.
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This video is based on the question https://stackoverflow.com/q/72006541/ asked by the user 'JBART' ( https://stackoverflow.com/u/18945424/ ) and on the answer https://stackoverflow.com/a/72008080/ provided by the user 'Ben' ( https://stackoverflow.com/u/1898524/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Limit Message Box Displays in Access for Password Attempts

When creating applications in Microsoft Access, you may encounter situations that require additional security measures, particularly when handling user passwords. A common issue arises when users repeatedly enter incorrect passwords, which can lead to frustration and confusion. In this post, we’ll explore how to limit the number of times a message box displays for incorrect password attempts, ensuring a smoother user experience.

The Problem

You have developed a login form for your Access Database and need to manage how the application responds to users entering incorrect passwords. Specifically, you want to provide feedback after three failed attempts, after which a different message box should notify the user to contact the administrator. Let’s take a closer look at the VBA code snippet you have and see how we can implement this feature.

Current Code Overview

Here’s the portion of your VBA code that deals with password verification:

[[See Video to Reveal this Text or Code Snippet]]

Currently, the code simply shows a message box with "Incorrect password" whenever an incorrect input is detected. However, it does not count how many times this occurs.

The Solution: Using a Static Counter Variable

To achieve the desired functionality, we can use a Static variable to count the number of incorrect attempts. A Static variable retains its value between calls to the procedure, allowing us to track the number of failed logins without resetting the count each time the procedure runs.

Step-by-step Implementation

Here’s how you can modify your code to include the static counter variable:

Introduce a Static Variable: Add a Static counter to keep track of incorrect attempts.

Check the Counter: After an incorrect entry, check if the number of attempts exceeds your predefined limit (in this case, 3).

Display Appropriate Messages: If the limit is reached, show a different message box.

Here’s how the revised code looks:

[[See Video to Reveal this Text or Code Snippet]]

Explanation of the Code Changes

Static Variable Declaration: Static intIncorrectCount As Integer initializes a counter that persists across procedure calls.

Incrementing the Counter: Each time an incorrect password is entered, intIncorrectCount is incremented by one.

Conditional Logic:

If the counter exceeds 2 (indicating three total incorrect attempts), a warning message box appears, and you have the option to close Access.

The count resets to 0 upon a successful login.

Conclusion

By implementing this approach, you enhance your Access login form’s functionality, ensuring users are aware of repeated unsuccessful attempts while preventing frustration from continual incorrect password prompts. Leveraging a static variable is a straightforward solution that caters to both user experience and application security.

Feel free to implement this solution in your Access application, and enjoy improved account security management!