Hello just wondering if someone can please help me.
Under the directiondropdown callback, I am wanting to set a limit of [-inf inf] for 'Temperature' unit types ie. 'Celcius to Farenheit' and 'Farenheit to Celcius' and a limit of [0 inf] for all other unit types ie. 'Pressure', 'Volume' and 'Energy'. When a user inputs a value, I am wanting the program to convert both negative and positive values for temperature, however only positive values for all other unit types. How do I go about this?