How to use contains() correctly?

[#1]

Hi, All

I wanna use contains(),

Names Default To Here( 1 );
dt = Open( "$Sample_Data/Blood pressure.jmp" );

colNamesList = dt << get column names( continuous );

Input = New Window( "example", << modal(),
	new1 = hlistbox(
	Text Box( "Test name :" ),
	Para_Num_teb = Text Edit Box( "", <<set width( 200 ) )
	),
		text box("Click OK"),
		Button Box( "OK", 
		Para_Num = Para_Num_teb << get text();
		),
);

if (!contains(colNamesList, Para_Num),
	Throw("Fail ")
);

however,

Fail message occurs everytime on this script which i made.

Could you give me any advice?

[#2 · Accepted solution]

The issue you are having is that you are retrieving a character string variable from your Button Box, but your list of column names are expressions

para_num = "zippy";

colnameslist = {BP 8M, BP 12M, BP 6M, BP 8W, BP 12W, BP 6W, BP 8F, BP 12F, BP 6F};

If you just specify to have the colNamesList returned as strings, your code will work

colNamesList = dt << get column names( continuous, string );

[#3]

Thank you very much Doctor!!!