I have a simple string array, with number 1 - 10, that I'm sorting with the following:
Array.Sort(StringArray, StringComparer.InvariantCulture);
My questions is, how can I change the direction of the sort from 1 - 10 ascending, to be come 10 - 1 descending?
If you want to sort the numbers in C# using Array methods, try this:
int[] arr = new int[] {1, 2, 3, 4, 5,6, 7, 8, 9, 10};
Array.Sort(arr); //1 2 3 4 5 6 7 8 9 10
Array.Reverse(arr); //10 9 8 7 6 5 4 3 2 1
There are a number of options. Here is the most common I use.
Linq over a List can also be used.
// C# program sort an array in
// decreasing order using
// CompareTo() Method
using System;
class GFG {
// Main Method
public static void Main()
{
// declaring and initializing the array
int[] arr = new int[] {1, 9, 6, 7, 5, 9};
// Sort the arr from last to first.
// compare every element to each other
Array.Sort<int>(arr, new Comparison<int>(
(i1, i2) => i2.CompareTo(i1)));
// print all element of array
foreach(int value in arr)
{
Console.Write(value + " ");
}
}
}
or
// C# program sort an array in decreasing order
// using Array.Sort() and Array.Reverse() Method
using System;
class GFG {
// Main Method
public static void Main()
{
// declaring and initializing the array
int[] arr = new int[] {1, 9, 6, 7, 5, 9};
// Sort array in ascending order.
Array.Sort(arr);
// reverse array
Array.Reverse(arr);
// print all element of array
foreach(int value in arr)
{
Console.Write(value + " ");
}
}
}
Just found this ... seems to work great.
Array.Reverse(StringArray);
