Anyone know why my InputField is not being disabled?

I have a simple worldspace UI that acts like a computer terminal and I am trying to write the script to turn it "off and on" by disabling the FPS controller and enabling a camera focused on the computer. I would like this script to toggle activating the InputField but for some reason upon activating and then deactivating it keeps taking keyboard input. Anyone know why or what I should use instead of "input.DeactivateInputField"?