The IF function returns one value if a condition you specify evaluates to TRUE, and another value if that condition evaluates to FALSE.
For example: I want the person filling out my form to be directed to the proper next selection.
Question: What type of vehicle are you interested in?
Choices: Car, Truck, Bicycle
If Car is selected, a drop down list of car manufacturers will appear.
Choices: Ford, Chevolet, Toyota
If Ford is selected, a drop down list of Ford cars will appear.
Choices: Mustang, Fusion, Focus
Thanks in advance for all who reply!
You can make form items conditional by clicking the "Show / Hide Item" checkbox in the property panel, highlighted in the following screenshot.
When you enable that option you will be presented with a dialog that allows you to specify the conditions that control the visibilty of the item.
In the screenshot above, you can see that the rule has been configured to show the "Select the car manufacturer" field if the user selects the "Car" option in the "What type of vehicle are you interested in?" field.