I thought I would pass on some information I struggled through and also record it for my own sake. The documentation on how to use the Format String widget is unclear. Read on if you want to save yourself some frustration.
I implemented the 'Dropzone' widget found on the public Mendix App Store into one of my applications this week and found the documentation rather light. Since it took me a few iterations to figure out how best to implement it, I thought I’d share what I learned and hopefully save some of you out there looking to implement it some effort.