How to shuffle a list [duplicate]

Question

Using C# to write a memory game. So I have a list of 54 images. I can get another list to grab eight of them images at random. I then want to add them eight images from my second list to another list, twice for each image, simple enough.

Now I want to shuffle the list and I am a little stuck. The reason I want to shuffle the list is because I want the pictures to be random each time the game (memory) is loaded or button(restart) is clicked... Here is what I have for this issue:

private void Form2_Load(object sender, EventArgs e)
{
    //generate random number
    Random r = new Random();

    //play music via media player
    axWindowsMediaPlayer1.uiMode = "none";
    axWindowsMediaPlayer1.URL = ("Theme.mp3");            

    //create limage list
    List<Image> imagesEasy;
    //populate the 'imageEasy' list
    imagesEasy = new List<Image>();
    imagesEasy.Add(Image.FromFile(@"Baraka01.gif"));
    imagesEasy.Add(Image.FromFile(@"Baraka02.gif"));
    imagesEasy.Add(Image.FromFile(@"CyberSubZero01.gif"));
    imagesEasy.Add(Image.FromFile(@"CyberSubZero02.gif"));
    imagesEasy.Add(Image.FromFile(@"Cyrax01.gif"));
    imagesEasy.Add(Image.FromFile(@"Cyrax02.gif"));
    imagesEasy.Add(Image.FromFile(@"Ermac01.gif"));
    imagesEasy.Add(Image.FromFile(@"Ermac02.gif"));
    imagesEasy.Add(Image.FromFile(@"Jade01.gif"));
    imagesEasy.Add(Image.FromFile(@"Jade02.gif"));
    imagesEasy.Add(Image.FromFile(@"Jax01.gif"));
    imagesEasy.Add(Image.FromFile(@"Jax01.gif"));
    imagesEasy.Add(Image.FromFile(@"JohnnyCage01.gif"));
    imagesEasy.Add(Image.FromFile(@"JohnnyCage02.gif"));
    imagesEasy.Add(Image.FromFile(@"Kabal01.gif"));
    imagesEasy.Add(Image.FromFile(@"Kabal02.gif"));
    imagesEasy.Add(Image.FromFile(@"Kano01.gif"));
    imagesEasy.Add(Image.FromFile(@"Kano02.gif"));
    imagesEasy.Add(Image.FromFile(@"Katana01.gif"));
    imagesEasy.Add(Image.FromFile(@"Katana02.gif"));
    imagesEasy.Add(Image.FromFile(@"Kratos01.gif"));
    imagesEasy.Add(Image.FromFile(@"Kratos02.gif"));
    imagesEasy.Add(Image.FromFile(@"KungLau01.gif"));
    imagesEasy.Add(Image.FromFile(@"KungLau02.gif"));
    imagesEasy.Add(Image.FromFile(@"LiuKang01.gif"));
    imagesEasy.Add(Image.FromFile(@"LiuKang02.gif"));
    imagesEasy.Add(Image.FromFile(@"Mileena01.gif"));
    imagesEasy.Add(Image.FromFile(@"Mileena02.gif"));
    imagesEasy.Add(Image.FromFile(@"NightWolf01.gif"));
    imagesEasy.Add(Image.FromFile(@"NightWolf02.gif"));
    imagesEasy.Add(Image.FromFile(@"NoobSaibot01.gif"));
    imagesEasy.Add(Image.FromFile(@"NoobSaibot02.gif"));
    imagesEasy.Add(Image.FromFile(@"QuanChi01.gif"));
    imagesEasy.Add(Image.FromFile(@"QuanChi01.gif"));
    imagesEasy.Add(Image.FromFile(@"Raiden01.gif"));
    imagesEasy.Add(Image.FromFile(@"Raiden02.gif"));
    imagesEasy.Add(Image.FromFile(@"Scorpian01.gif"));
    imagesEasy.Add(Image.FromFile(@"Scorpian02.gif"));
    imagesEasy.Add(Image.FromFile(@"Sektor01.gif"));
    imagesEasy.Add(Image.FromFile(@"Sektor02.gif"));
    imagesEasy.Add(Image.FromFile(@"ShangTsung01.gif"));
    imagesEasy.Add(Image.FromFile(@"ShangTsung02.gif"));
    imagesEasy.Add(Image.FromFile(@"Sheeva01.gif"));
    imagesEasy.Add(Image.FromFile(@"Sheeva02.gif"));
    imagesEasy.Add(Image.FromFile(@"Sindel01.gif"));
    imagesEasy.Add(Image.FromFile(@"Sindel02.gif"));
    imagesEasy.Add(Image.FromFile(@"Smoke01.gif"));
    imagesEasy.Add(Image.FromFile(@"Smoke02.gif"));
    imagesEasy.Add(Image.FromFile(@"Sonya01.gif"));
    imagesEasy.Add(Image.FromFile(@"Sonya02.gif"));
    imagesEasy.Add(Image.FromFile(@"Stryker01.gif"));
    imagesEasy.Add(Image.FromFile(@"Stryker02.gif"));
    imagesEasy.Add(Image.FromFile(@"SubZero01.gif"));
    imagesEasy.Add(Image.FromFile(@"SubZero02.gif"));

    List<Image> imagesReady;
    //populate the 'imageReady' list to fill remaining 8 pictureBoxes
    imagesReady = new List<Image>();
    imagesReady.Add(imagesEasy[r.Next(54)]);
    imagesReady.Add(imagesEasy[r.Next(54)]);
    imagesReady.Add(imagesEasy[r.Next(54)]);
    imagesReady.Add(imagesEasy[r.Next(54)]);
    imagesReady.Add(imagesEasy[r.Next(54)]);
    imagesReady.Add(imagesEasy[r.Next(54)]);
    imagesReady.Add(imagesEasy[r.Next(54)]);
    imagesReady.Add(imagesEasy[r.Next(54)]);

    List<Image> imagesFinal;
    //populate the 'imageFinal' list to fill remaining 8 pictureBoxes
    imagesFinal = new List<Image>();
    imagesFinal.Add(imagesReady[0]);
    imagesFinal.Add(imagesReady[1]);
    imagesFinal.Add(imagesReady[2]);
    imagesFinal.Add(imagesReady[3]);
    imagesFinal.Add(imagesReady[4]);
    imagesFinal.Add(imagesReady[5]);
    imagesFinal.Add(imagesReady[6]);
    imagesFinal.Add(imagesReady[7]);
    imagesFinal.Add(imagesReady[0]);
    imagesFinal.Add(imagesReady[1]);
    imagesFinal.Add(imagesReady[2]);
    imagesFinal.Add(imagesReady[3]);
    imagesFinal.Add(imagesReady[4]);
    imagesFinal.Add(imagesReady[5]);
    imagesFinal.Add(imagesReady[6]);
    imagesFinal.Add(imagesReady[7]);

    //
    //need to add or call shuffle method here before assigning pictures to pictureBoxes
    //

    //assign pictures to pictureBoxes from the imagesFinal list
    pictureBox1.Image = imagesFinal[0];
    pictureBox2.Image = imagesFinal[1];
    pictureBox3.Image = imagesFinal[2];
    pictureBox4.Image = imagesFinal[3];
    pictureBox5.Image = imagesFinal[4];
    pictureBox6.Image = imagesFinal[5];
    pictureBox7.Image = imagesFinal[6];
    pictureBox8.Image = imagesFinal[7];
    pictureBox9.Image = imagesFinal[8];
    pictureBox10.Image = imagesFinal[9];
    pictureBox11.Image = imagesFinal[10];
    pictureBox12.Image = imagesFinal[11];
    pictureBox13.Image = imagesFinal[12];
    pictureBox14.Image = imagesFinal[13];
    pictureBox15.Image = imagesFinal[14];
    pictureBox16.Image = imagesFinal[15];
}

Answer 1

This can easily be accomplished using linq OrderBy with Random.

var rand = new Random();
var randomList = imagesEasy.OrderBy (x => rand.Next()).ToList();