Resolving the ‘3021 - No Current Record’ Error in VBA with IsNull Function

Struggling with the '3021 - No Current Record' error in your VBA code? Learn how to properly check for null values in recordsets and avoid common pitfalls with our comprehensive guide.
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This video is based on the question https://stackoverflow.com/q/66165368/ asked by the user 'pewpew' ( https://stackoverflow.com/u/7982233/ ) and on the answer https://stackoverflow.com/a/66165616/ provided by the user 'June7' ( https://stackoverflow.com/u/7607190/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Understanding the ‘3021 - No Current Record’ Error in VBA

As a developer working with VBA in Microsoft Access, encountering runtime errors can be frustrating. One such error is the frequently seen 3021 - No Current Record message. This error typically arises when your code attempts to access a field in a recordset that doesn't contain any current records. This can happen when the SQL query you've executed returns no results. In this post, we'll explore how to diagnose and resolve this issue effectively.

The Problem

In your VBA subroutine, you're attempting to check if a field in your recordset is null, specifically using the following code snippet:

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

However, when the recordset is empty, accessing rst_Trim.Fields("trim").Value leads to the 3021 - No Current Record error, halting execution and preventing your intended logic from running.

The Solution

To handle this situation smoothly, you can modify your approach. Here’s how to avoid the error and achieve the desired functionality.

1. Understand the .Value Property

The primary issue is the use of the .Value property when the recordset is empty. The .Value property is the default property for a field, which means that you don’t need to explicitly call it. Instead, you can reference the field directly.

2. Checking for Records

Before trying to access any fields in the recordset, you need to verify whether there are any records available. You can do this by using the EOF (End of File) property of the recordset. Here's a modified version of your code:

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

3. Breakdown of the Code

Check for Records: The first conditional If rst_Trim.EOF Then checks if the recordset has reached the end. If it has, it means that no records were returned by your query.

Accessing Fields: If the recordset is not empty, you can safely check if the field is null without causing an error.

Handling Values: If the field is not null, you can then proceed to use the value as intended.

Conclusion

By implementing these changes, you should now handle the 3021 - No Current Record error gracefully, making your VBA code more robust and user-friendly. Always remember to check if your recordset contains records before attempting to access field values.

Implement these techniques in your VBA projects, and you'll significantly reduce the occurrence of runtime errors. Happy coding!

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