Perhaps my approach is wrong here, but here's my idea. I am using a Search() function on a feature service to return a list of values to the question (call it: selectOneStreetName) based on the answer from the previous question(call it: typeStreetName). The previous question (typeStreetName) asks the user to type the name of a street into a text box. The Search function queries the feature service for all the streets that start with whatever the user types. Despite warnings to check their spelling I know someone is going to spell the street name incorrectly and the list will return blank. I'd like to pop a warning to the user to have them check their spelling if the list is blank before the list question is shown. I thought I might be able to do that by checking a count on the list to see if it's greater than zero, but I can't figure out a way to do that. Any help or any other approach that produces similar results is appreciated.
Thank you in advance,
Mark
