c# - Sort two Lists<T> together as one?

Question

I have two List which I am accessing by index (e.g. Name[10], Date[10]). They're closely tied, so Name[10] is related to Date[10] and vice versa.

This design has worked well but now I need to sort them. I can sort them both individually but obviously that would remove the relationship between the two lists and make them worthless.

I thought about using a Dictionary<string, DateTime> instead but it seems I can only access that by Key (which is also unworkable). Essentially I need three things, two values and one index which I can iterate through numerically (not foreach).

Can anyone help? It seems I either need to change data-structure or work out how to sort two distinct List<T> together...

public class Results
{ 
public List<string> Name { get; set; }
public List<DateTime> Date{ get; set; }
}

for (int x = 0; x < results; x++)
{ z.N = results.Name[X]; z.D = results.Date[x]; } 

Answer 1

Use the Array.Sort overload that takes an array of keys and an array of values, it does precisely what you want. (This method has been available since .NET 2.0.)