Breaking a line in a file..

Question

 good day
 
   anyone out there knows how to break a line in a file?

for example: i have this file name "sample.txt" and contains

fjdslfjlkdsjf;fsdafdsffdsdsasd;fasdfsdf;0;fsdaf
fsdaffdsffd;fsdafdsfafdssdas;fasdfds;9;fdsfsd.

What i want to do is.. i want to break the first line whenever
the system meets the semicolon , and populate
its values to the listview control.

im looking for a function..

my code:

dim f as new filestream("sample.txt", filemode.open, fileaccess.read
dim r as new streamreader(f)

dim lv as new listviewitem
r.basestream.seek(0,seekorigin.begin)
while r.peek()>-1
     lv=lst.items.add(r.read().Tochararray(0,13))  //this part i break the first 13 items
     lv.subitems.add(r.read().substring(14,16)) //but this gets only 15 chars from offset, 
                                                                  and then prompts an error        
end while


any help is appreciated.

thanx,