Скачать или смотреть Fixing the Private Sub Worksheet_Change Type Mismatch Error in VBA for Excel

Learn how to effectively handle the `Private Sub Worksheet_Change` event in Excel VBA to avoid type mismatch errors when working with data validation lists and formulas.
---
This video is based on the question https://stackoverflow.com/q/62837128/ asked by the user 'eyeScream' ( https://stackoverflow.com/u/11555787/ ) and on the answer https://stackoverflow.com/a/62839129/ provided by the user 'SJR' ( https://stackoverflow.com/u/7008044/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Private sub change not seeing value

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Fixing the Private Sub Worksheet_Change Type Mismatch Error in VBA for Excel

When working with Excel, especially using VBA, it is common to encounter issues related to event handling and formulas. One particular problem involves the Private Sub Worksheet_Change event, where users often face type mismatch errors when trying to automate cell behaviors with data validation lists. In this guide, we will delve into the specifics of this problem and walk you through the solution step by step.

The Problem

You have a Private Sub Worksheet_Change event that triggers when a specific cell changes in value. In your case, you want the following functionalities based on the value selected in cell E4, which contains a data validation list with five string items:

For the first four items, you want to input a specific formula in the range F4:Z4.

For the fifth item, you want to clear the contents of the range F4:Z4.

However, upon trying to implement this, you're encountering a type mismatch error at the first If statement.

The core of the issue lies in the way you are checking the values against your conditions in VBA.

The Solution

To resolve this issue, we can utilize the Select Case statement, which simplifies the code and makes it more readable. Here's how you can refactor your code:

Refactored Code Using Select Case

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

Explanation of the Code

Define the Range: The line Set x = Range("E4") sets the target cell you are monitoring for changes.

Check for Changes: The line If Not Application.Intersect(x, Target) Is Nothing checks if the changed cell (Target) is the same as cell E4.

Use Select Case:

The Select Case statement evaluates the value in E4.

If the value matches any of the predefined cases (first four items), a specific formula is applied to the range F4:Z4.

If the value does not match (the fifth item), Range("F4:Z4").ClearContents is executed, which clears any content in that range.

Optional Enhancements

Additionally, you mentioned wanting to lock and unlock the range F4:Z4 based on whether it contains a formula or is empty. You could achieve this by adjusting the code to include the locking mechanism.

Example for Locking/Unlocking Cells

After the Select Case block and before the End If, you can add:

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

Final Thoughts

By utilizing the Select Case statement, you simplify your code and effectively eliminate type mismatch errors occurring with your Private Sub Worksheet_Change event. This structured approach not only resolves the issue but also enhances maintainability for future users or modifications.

Feel free to implement these changes into your Excel file and observe how the behavior of F4:Z4 adapts accordingly based on the selection in E4.