How to Convert Excel Table Formula to VBA for Range Checks

Learn how to efficiently convert an Excel table formula checking for empty cells in a column range into VBA code while avoiding common pitfalls of using Evaluate.
---

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: Excel convert table formula on column range to VBA

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Converting Excel Table Formula to VBA

When working with data in Excel, it's common to need to check multiple columns for empty values. You might find yourself using a formula like:

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

This formula checks if any of the columns from Field1 to Field7 in a table named tblName are empty. However, what if you want to perform this check using VBA instead of having the formula visible in a cell? In this guide, we'll explore how to convert this formula into efficient VBA code and overcome some common pitfalls.

The Problem

The challenge arises when trying to translate this Excel formula into VBA code without displaying it in a worksheet. The existing attempt to use the Evaluate function led to various complications. Evaluate is powerful but has limitations, especially when handling array formulas like the one we are trying to convert.

Why Not Use Evaluate?

While the Evaluate function is a natural choice for converting Excel formulas into VBA, it can complicate referencing ranges and handling arrays. Instead, we will focus on a more straightforward approach using VBA's built-in functions.

A Simplified Solution

Using COUNTA

Instead of trying to check for empty strings directly, we can use the COUNTA function. This function counts non-empty cells, allowing us to check if any of our target columns contain data. If the count of non-empty cells is less than the number of columns we are testing, we can return "yes", otherwise "no".

Step-by-Step Implementation

Define the Table Object and Range:

Create a reference to your table and specify which columns you want to check.

Use the COUNTA Function:

Utilize the COUNTA function in your VBA code to assess the completeness of the data in your target columns.

Update Workbook Values:

To remove the formula from the worksheet after calculation, we can transfer the results into the appropriate range using value transfer.

Sample Code

Here is an example code snippet that incorporates these steps:

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

Important Notes

Table Name: Ensure that you update the table name (tblName) and sheet name (Data) according to your workbook.

Column Count Adjustments: If the number of columns you're checking changes, modify the Resize method accordingly to reflect the correct count.

Additional Tips

Use Boolean Outputs: Instead of "yes" and "no", consider returning TRUE or FALSE to streamline future calculations. This change can often simplify your logic and maintain consistency across your VBA and Excel operations.

Clarify Your Logic: Keep your formulas straightforward. Define what you truly care about in your checks and optimize accordingly.

Conclusion

Converting Excel formulas into VBA does not have to be complex. By utilizing built-in functions like COUNTA, maintaining explicit and clear logic, and avoiding convolutions with Evaluate, you can create efficient and readable code. Implement the sample code above, and modify it to suit your needs – you'll find it much easier to manage your data while keeping your calculations behind the scenes.