How can make random array C#

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Hi guys
I have an array in C# and How can I replace the members of the array randomly with each other?

What I have tried:

for show array I use Listbox

C#

inputCount= lstin.Items.Count;
output = UniqueRandom(0, inputCount).ToArray<int>();//Just Make me random Number Without Duplicate
for (int i = 0; i < output.Length; i++)
   { 
       lstout.Items.Add(lstin.Items[output[i]]);
   }

Posted 1-Apr-19 1:12am

egball

Updated 1-Apr-19 1:45am

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johannesnestler 2-Apr-19 9:14am

if this Code is for a Card game or something similar I recommend not to really "shuflle" the Array - just pick items (cards) randomly and remove them. No shuffling needed - and more secure - no one will know the shuffled order before you draw an item - just init Random with the actual access time - if this is over network it will be even more unpredictable.

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CPallini · Answer 1 · 2019-04-01T01:16:00

Solution 1

Do you mean shuffle[^]?

Posted 1-Apr-19 1:16am

CPallini

OriginalGriff · Answer 2 · 2019-04-01T01:46:00

Simplest solution:

C#

private Random shuffle = new Random();
public void Randomise<T>(List<T> input)
    {
    int capacity = input.Count;
    if (capacity> 1)
        {
        for (int i = 0; i < capacity * 3; i++)
            {
            int r1 = shuffle.Next(capacity);
            int r2 = shuffle.Next(capacity);
            T temp = input[r1];
            input[r1] = input[r2];
            input[r2] = temp;
            }
        }
    }