Hi all

i have to rewirte the content of the text file
my text file look like below

BBC|1045|132|some text
BBC|1045|134|some text
BBC|1045|136|some text
BBK|1047|134|some text
BBK|1047|138|some text
BBK|1047|142|some text

i have to show up the first one BBC in one combo box based on selection need to show the
third parameter in another combo box , based on second combo box selection need to show the "some text" in a text box

there in text box user can change the text and click to save and the text file should be updated

which one is the bset approach to get unique names of first column to show in combo box

Thanks a lot