How to Remember Original Values in Excel VBA Code

Learn how to preserve original values in Excel VBA while running calculations, ensuring data integrity throughout your workflow.
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This video is based on the question https://stackoverflow.com/q/69194848/ asked by the user 'FoolzRailer' ( https://stackoverflow.com/u/4648996/ ) and on the answer https://stackoverflow.com/a/69194983/ provided by the user 'Pᴇʜ' ( https://stackoverflow.com/u/3219613/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Remember Original Values in Excel VBA Code

If you're delving into the world of Excel VBA, you may have experienced scenarios where you manipulate data in a way that could disrupt the original values. Whether you are performing calculations, copying data from one cell to another, or running complex macros, it’s crucial to have a method to restore the original values after your computations. In this guide, we’ll tackle a specific question that illustrates how to efficiently remember and restore original values using VBA in Excel.

The Challenge

Imagine you’ve written a VBA macro that copies values from one sheet to another and performs calculations based on those values. After executing your code, it’s important to revert certain cells back to their original state. Let’s look at the scenario presented by a user:

They have a Klima function designed to copy values from Sheet X to Sheet Y and perform some calculations. After running this routine, they want to ensure that the values in cells B8, B9, and I3 in Sheet Y return to their previous state.

The Existing Code

Here’s a snapshot of the user's VBA code:

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

The Solution

To restore the original values after running the Klima function, we can introduce a new procedure that saves the initial values before the calculations are performed. Here's how you can implement this.

Step-by-Step Guide

Declare variables: We will create variables to store the original values of the cells you want to preserve.

Run the calculations: Call the existing Klima subroutine.

Restore the values: Assign the saved values back to their respective cells.

Here’s an Implementation Example

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

Explanation of the Code

Option Explicit: This is a directive that encourages you to declare all variables. It helps prevent errors that might occur due to typos or unintentional variable creations.

Storing values: We capture the current values of cells B8, B9, and I3 and store them in the respective variables.

Calculating and restoring: After invoking the Klima subroutine to perform the needed operations, the original values are restored to the cells, ensuring data integrity.

Conclusion

By employing this method, you can effectively handle scenarios in Excel VBA where data manipulation occurs without losing sight of the original data. This process not only keeps your data safe but also helps improve the reliability of your VBA applications. Give it a try in your projects, and take control over your Excel data like a pro!

Whether you’re a seasoned VBA developer or just starting, understanding how to manage data and restore original values is an essential skill in optimizing your Excel workflows.