Manipulating Checkbox in webdesigner to be ticked if textfield contains data


I have a textfield in Manager which I have Connected to be shown in the web-portal. I also have checked the Field to be shown as "VI_edit_checkbox". I've tried various ways of manipulating the checkbox to be ticked if there is any data in the textfield. Is there any way to use Condition Field or "Expression for display value" With WEBSQL to get the checkbox as true if the textfield contains data? The reason im trying to do this, is to avoid extending schema.

If there is a solution, it probably is an easy one.