> For the complete documentation index, see [llms.txt](https://kb.logicerp.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://kb.logicerp.com/logic-erp-learning-hub-tutorials-and-best-practices/defining-custom-columns-in-reports-and-grids-with-expressions/lcase-function.md).
# LCase() Function
**YouTube:** [How to Use the LCase ( ) Function in Report Custom Columns?](https://www.youtube.com/watch?v=e2y13oLd_s0)
## How to Use the LCase( ) Function in Report Custom Columns?
In this tutorial, you'll learn how to create an expression that **converts text to lowercase** using the `LCase` function. This is useful for standardizing text display in grids and reports.
***
### Accessing the Expression Designer:
* Open Sale Voucher or any document.
* Navigate to the "**Setup Column Attributes"**.
* Here, you'll see a list of available columns that can be used to build expressions.
* Click on **"Add/Edit Expression Columns"** where you can write your expression using predefined functions.
### Writing Your First Expression
* Every expression must start with the script header: **'#@LSCRIPT**
* Click the (+) Plus icon to create a new expression.
* Fill in the required fields:
* **Expression Name** – A unique name for your expression.
* **Expression Type** – Choose either **Text** or **Numeric** depending on the expected output.
* Double-click the expression name to insert it into the editor.
* Define the expression using the syntax:
* Expression Name = LCASE("ITEM\_NAME")
> This converts all characters in `ITEM_NAME` to lowercase.
* Save the expression.
* Scroll down and check the box to enable the expression in the grid.
* Save and proceed to check the effect.
* The column will now display all **item names in lowercase**.
* Any text already in lowercase remains unchanged.
***
### Applying the Expression in a Report
* Navigate to the **Reporting** section.
* Open the **Sales Register Detailed Report** or any **"Report".**
* Go to **Setup Column Attributes** as you did earlier.
* Before adding the expression to the report, go to **Other Settings**.
* Ensure the **Script Editor** is set to **VBScript**.
* Click **Save**.
* *Note: VBScript is the default for new configurations but always verify this setting.*
***
### Adding and Using the Expression in the Report
* Return to **"Setup Column Attribute"** window.
* Click **"Add/Edit Expression Columns"**.
* Every expression must start with the script header **'#@LSCRIPT**
* Click the (+) Plus icon to create a new expression.
* Fill in the required fields:
* **Expression Name** – A unique name for your expression.
* **Expression Type** – Choose either **Text** or **Numeric** depending on the expected output.
### Creating a Simple LCASE() Expression
* Double-click your newly created expression to insert it into the script editor.
* Define the expression using the syntax:
* Expression Name = LCASE("ITEM\_NAME")
* Click **Save**.
* Scroll down and **check the box** to enable the column in the report.
* Save and proceed to check the effect.
* **Refresh the report** to view the final result.
***
### Summary
* The `LCase` function standardizes text by converting it to lowercase.
* This is useful for **case-insensitive matching**, **uniform display**, and **text normalization**.
* You applied it to both **data grids** and **reports**.
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