How can you export columns from your data grid without having them visible on the user interface?

Using CSS to set the column to "display: none" is the correct approach because this method effectively removes the column from the layout of the data grid while ensuring that the data in the column can still be exported. When a column is set to "display: none," it does not occupy any space in the document flow, meaning it won't be visible to users, yet the associated data can still be accessed programmatically or during export processes.

This approach allows for a clean separation between what is presented to the user and what can be interacted with behind the scenes, making it suitable for scenarios where certain data needs to be retained for export but should not clutter the user interface.

Other methods, like using a JavaScript function to hide the columns or setting visibility to "hidden," do not completely achieve the same effect. They may still reserve space for the column or require additional scripting to handle data export correctly, which does not simplify the process as effectively as setting "display: none" does. Removing the column from the data grid entirely would not allow for its data to be exported, which contradicts the requirement of the task.