What type of formula can be used in the Text formula event of the Output Control from BPM UI Toolkit

I’m wondering what type of formula can be used in the Text formula event of the Output Control from the new BPM UI Toolkit. Documentation says it’s used to calculate the output text. I wanted to use it in a View where I provided a date input, a format string for a configuration property and then I would use the Text formula to format the date according to the format string entered.

I’m not getting it to recognize any formula with variables or configuration properties. Even if I just bind a text variable to the Text formula, it won’t display. Initially, I was not even using the format string. I tried a formula of {{tw.businessData.aDate.toString()}} — no text displayed. I’ve tried just binding a plain string variable to the formula — no text displayed. The only time I get anything to display using the Text formula is if I hard code in text such as “abc”.

I’m not sure if this is a bug or do I need to add something to my formula for it to recognize and use variables and configuration properties. I would really like to use this functionality to build this view for date displays. It would make our Heritage Human Service conversion project much easier to accomplish.

Any assistance you could provide would be appreciated. Thanks!

Tracy