How to disable output types on NI9213

[calvin.8900]

Hi, I am useing the cRIO 9023 and the NI9213 modules to read thermocouples, I added the modules to my labview VI, and allowed a dropdown box for the user to change out they output the temperature,(Kelvin, Celsius, Fahrenheit, Rankine, and volts), All 5 are enabled as options by default, but I would like to only allow Kelvin, Celsius, and Fahrenheit. How can I only give the user only these 3 options and hide Rankine and Volts ?

I added  a controll for the "Degree Range" to the VI, and that is how the user selects what type they want to view the Temp as. 

[.aCe.]

Post your code please.

[calvin.8900]

I am not sure what code you are refering to, there is no error code, I just want to know how to disable the mentioned options.

[Todd_Lesher]

"Source code", not "error code" - meaning the .vi file.

[calvin.8900]

Oh sorry, yes as you can see I am new to this. below is the code.