exclude parameter value
In a certain I like the user to only select certain parameter values and do not give the possibility to select another. The reason being that on value is set on an activity of a web service.
Is it possible to exclude a parameter value only for a specific form?
I have tried a workaround by creating an check box with a rule that sets the parameter value. However, the rule only works if the parameter value is set on editable and not when it is set on non editable.