Question : How do I calculate columns of data when checkbox checked on row.

I am a noob with Java, but have been giving it three days of googleing and forums in order to figure this out,
so now I need to ask for help.

I am trying to calculate sums for each column when a check box is checked on the row.
I have an intitial Value for each column in a text field.
I then want to update the value when user adds accesarys to the intial value.
I have found a script that has gotten me part of the way.

I have tried adding additional calculations to the script to calculate the initial value, but it breaks.
I am also able to get the first column calulated, but unable to get the second or third.

If anyone has any ideas or can point me in the right direction. Not looking for you to write the code for me, just give me some ideas where I can get my pointed in the right direction to solve my problem. Here is the code I am working with.

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TradeIn Value
Retail Value 
Loan Value

Accesories

 
 













 

     
      
      
      
     
     
     
  

	+
    UID Acce
    TradIn Acce
    Retail Acce
    Loan Acce
 
 

 

  
     #UID#
     #TradeIn#
     #Retail#
     #Loan#
    
   
  
	 





Update TradeIn Value
Updated Retail Value
Updated Loan Value


-

Totals

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Answer : How do I calculate columns of data when checkbox checked on row.

Another alternative is use have each cell id attribute something that can be determined based upon the row, and column number. For example, something
like:

                       
         
           
           
             Col->   0     1     2
     +-----+-----+-----+
     |     |     |     |
  0  | 00  | 01  | 02  |
     |     |     |     |
     +-----+-----+-----+
     |     |     |     |
  1  | 10  | 11  | 12  |
     |     |     |     |
     +-----+-----+-----+
     |     |     |     |
  2  | 20  | 21  | 22  |
     |     |     |     |
     +-----+-----+-----+
           
         

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