Dashboard component/business rule
Is it possible to do a live character count using a text box and label component inside of a business rule that counts characters as they are being typed into a text box component that is used in a d...
Forum Discussion
AFAIK not possible. OneStream is proprietary UI components that lack the discreet event handling needed for your requirement. You would have to make a user initiated button click round trip to a business rule for each character to accomplish this.
Instead consider placing a label near the textbox informing the user of the character limit. If exceeded on save, send back a message through the XFSelectionChangedTaskResult object in your Dashboard Extender code that handles this event.