How can I sort parallel arrays?

Question

I need to sort several parallel arrays some strings some numbers so they don't lose the matching data. They will need to be sorted primarily by the name - a string array. I know it can be done with a bubble sort but I was unable to get the > or < operator to work with strings (although I tried it a while ago so I'm not sure). Using the Array.Sort method it only works with one array at a time and the rest will no longer match up unless there's some special technique I don't know about. (I think I was also unable to get it to work with strings the last time I tried.) What is the best and simplest way to sort parallel arrays including strings?

joy.simpson · Answer

I devised an algorithm that will sort parallel arrays using the Array.Sort method. It copies the main array to a duplicate which is sorted and compares it to the original. The sort order is then saved to a new array which is used for displaying the sorted array together with the matching data. Here is the code: =============================================== using System; namespace ParallelSort_CS { class Class1 { static void Main(string[] args) { int x y; string[] nom = {Tom Sue Bill Joe Betty Fred}; int[] grd = {56 78 90 82 65 89}; string[] newnom = new string[6]; int[] sortlist = new int[6]; Console.WriteLine(Unsorted list of students and their grades:
); for (x = 0; x operators to compare strings. Coming from VB6 with no experience in OOP how can I implement the CompareTo method? I would like to keep it as simple as possible. The following is the bubble sort program that gives an error: ============================================= using System; namespace ParallelBubble_CS { class Class1 { static void Main(string[] args) { int x j k tempgrd; string tempnom first second; string[] nom = { Tom Sue Bill Joe Betty Fred}; int[] grd = {0 56 78 90 82 65 89}; Console.WriteLine(Unsorted list of six students and their grades:
); for (x = 1; x second) { tempnom = nom[k]; tempgrd = grd[k]; nom[k] = nom[k + 1]; grd[k] = grd[k + 1]; nom[k + 1] = tempnom; grd[k + 1] = tempgrd; } } } Console.WriteLine(
Sorted alphabetical list by name with grades:
); for (x = 1; x <= 6; x++) Console.WriteLine(#{0}: {1} - {2}. x nom[x] grd[x]); Console.WriteLine(); } } }