Multiple barcodes in a form

Hi All,

We have a requirement to use multiple barcodes in a form, and that too form is dynamic one. when we extract data out of these barcodes we get the content list (xml list), now is there any straight forwards approach to merge these individual list elements into a single XML which we will be using to re-merge with the form. (currently i am accessing each element as contentlist[0],contentlist[1].... which is not the right approach)

I am setting the format for the barcodes as XML as we need to preserve the hierarchy of the schema.  Can anyone please advise the approach the i need to take in case of handling these multiple barcodes

Thanks in Advance