Set Text Entry Equal to Typed Value As Value is Typed
I have been creating a software simulation with text entry boxes. I have a red square behind the data entry box, which creates a red border around it. I would like this border to disappear as soon as the user starts typing in the box. Currently the value doesn't change until control loses focus (by default). Is there a way to alter this so that the value is updated every time a key is pressed?
What I want is a trigger that says something like "Set textentry1 equal to the typed value when user presses any key."