Issue with reading string from text file[SOLVED]

Hi all,

I have a text file that contains header and while reading and writing the file I use the Field names to identify the fields length.
The DES_AD_A field is split and few words from DES_AD_A is written In DES_A in the output line.
I checked through the code with breakpoint and found that in " desAA = t.Substring(p(4), p(5) - p(4))" line, the field value is read as "desAA "ADDITIONAL_" String ".
I'm not sure why the entire field name is not read.

Any help will be helpful.

Thanks in Advance.

Have solved the isuue.