Tag datwindow property object not functioning in background color

Question

I am using 12.6 classic
I need to send to the column's of a Datawindow information to control the properties so that I can dictate the column's background color, The border, etc.
For example, I use the below to control the background property of a column.
if( right(customer_name, 1) = 'O', rgb(255,135,155), rgb(255,50,50))
The problem is that these codes I send with the customer's name display as well.
My attempted solution was to use the column's tag property
after sending information to the tag property I want to use the below in the background color of each column.
if( right(customer_name.tag, 1) = 'O', rgb(255,135,155), rgb(255,50,50))
but upon saving i get the error                DATAWINDOW
                                               Expecting true/false expression
I can also solve the problem even easier if I can just display the tag property of each column in my datawindow, leaving the value of the column to control the background and other column properties.

Answer 1

Sorry Philip,
I must have misread your question. When you say tag, we all thought the tag property of the column.  Having re-read the question...
The problem is that these codes I send with the customer's name display as well.
you are tagging an O to a column in your select statement to choose a certain background colour, but you don't want to show the letter O.
You should really select the background colour as a separate column in your results set (refer also to a very similar discussion in PBSAPCN)
So instead of SELECT customer_name + 'O' .....  SELECT customer_name , 'O' as mybackcolour....
Then if ( mybaclcolour = 'O' , rgb (....
Alternatively but not nice and eccentrically unusual, you  could diplay the customer name as a computed column without the last letter: left ( customer_name, len ( customer_name) - 1 )
HTH
Lars
PS Stuart has already suggested this.