Nevermind, I think I figured it out.
The two boxes are because you're assigning the variable to the Text box right?

Could I simply do this?
code:

// Male = 1
// Female = 2

gendervar= combobox1.getValue();
if (gendervar == 1){
gender = "Male";
} if (gendervar == 2){
gender = "Female";
}else{
gender = "";
}