Troubleshooting the Object variable or With Block variable not set Error in VBA Concatenation

Описание: Learn how to fix the run-time error '91' in your Excel VBA script when concatenating cells with simple solutions and troubleshooting tips.
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This video is based on the question https://stackoverflow.com/q/65128252/ asked by the user 'Samuel Burton' ( https://stackoverflow.com/u/14550132/ ) and on the answer https://stackoverflow.com/a/65128821/ provided by the user 'BigBen' ( https://stackoverflow.com/u/9245853/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Troubleshooting the Object variable or With Block variable not set Error in VBA Concatenation

If you've ever tried to run a macro in Excel using VBA and encountered the dreaded run-time error '91' - "Object variable or With Block variable not set", you're not alone. This issue often arises when manipulating ranges or cells in VBA, especially during operations like concatenating cell values. Let’s dive into a specific example and explore how to resolve this problem effectively.

Understanding the Problem

In VBA, when you attempt to concatenate values from different cells, you might run into this error due to the way the Cells variable is declared and used. Here’s an overview of the problematic macro:

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

In this script, we attempt to concatenate values from cells in columns 3 and 4 into column 2, but the use of Dim Cells As Range is causing a conflict with the built-in Cells property of the Excel Object Model.

Step-by-Step Solution

1. Remove the Shadowing Variable

The primary issue stems from the declaration of Cells as a Range. This shadows the built-in Cells property, ultimately causing the error. To fix this, you just need to remove or rename that declaration.

Fix: Simply eliminate the line Dim Cells As Range. Your new code should look like this:

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

2. Adjust Clear Contents Method

Another improvement can be made in the way we clear contents of the concatenated cells. Instead of setting Cells(x, 2) = "", we can use the ClearContents method, which is more efficient and cleaner.

Fix: Change the line where you are clearing contents to:

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

This change ensures that you are explicitly clearing the contents of the range rather than just setting a single cell to an empty string.

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

Conclusion

By addressing the error of variable shadowing and optimizing how we clear cell contents, we can make our macro run smoothly without encountering run-time errors. Whenever you are debugging VBA code, always check for variable declarations that might conflict with built-in properties — it’s a common pitfall that can lead to frustrating errors.

With these adjustments, you should be able to run your concatenation macro without any issues. Happy coding!