I have a txt file with 3 columns.
1st column: cityid1
2nd column: cityid2
3rd column: distance between cityid1 and cityid2
My question is... How I can read that data from txt file, have one dropdown list (choose 1st city), then based on that dropdown, choose second dropdown list (choose a city), and then get the distance as the final result.
Thank you very much for reading this, and help.
1st column: cityid1
2nd column: cityid2
3rd column: distance between cityid1 and cityid2
My question is... How I can read that data from txt file, have one dropdown list (choose 1st city), then based on that dropdown, choose second dropdown list (choose a city), and then get the distance as the final result.
Thank you very much for reading this, and help.