比较图像来源

Question

我有一个记忆游戏，在那个游戏中，我必须检查2张卡是否相等。 我做了一个if语句，检查两个图像源是否相等，但是即使它们相等，由于某种原因它也看不到它。我尝试了“ ==”运算符和.Equal，但是它们都不起作用。我有一个名为images的目录，在该文件夹中有8张图像，其名称分别为1.png，2.png等。

这是我的代码：

public class MemoryGrid
{
    private Grid grid;
    private int rows, cols;

    public MemoryGrid(Grid grid, int rows, int cols)
    {
        this.grid = grid;
        this.rows = rows;
        this.cols = cols;

        InitializeGrid();
        AddImages();
    }


    private void InitializeGrid()
    {
        for (int i = 0; i < rows; i++)
        {
            grid.RowDefinitions.Add(new RowDefinition());
        }
        for (int i = 0; i < cols; i++)
        {
            grid.ColumnDefinitions.Add(new ColumnDefinition());
        }
    }

    private void AddImages()
    {
        List<ImageSource> images = GetImagesList();
        for (int row = 0; row < rows; row++)
        {
            for (int col = 0; col < cols; col++)
            {
                Image back = new Image();
                back.Source = new BitmapImage(new Uri("/images/back.png", UriKind.Relative));

                back.MouseDown += new System.Windows.Input.MouseButtonEventHandler(CardClick);

                back.Tag = images.First();
                images.RemoveAt(0);
                Grid.SetColumn(back, col);
                Grid.SetRow(back, row);
                grid.Children.Add(back);
            }
        }
    }



    static int numberOfClicks = 0;
    private Image card;
    static int score;
    private Image Image1;
    private Image Image2;



    private void CardClick(object sender, MouseButtonEventArgs e)
    {
        if (hasDelay) return;

        Image card = (Image)sender;
        ImageSource front = (ImageSource)card.Tag;
        card.Source = front;
        numberOfClicks++;

        checkCards(card);
    }

    private void checkCards(Image card)
    {

        this.card = card;
        if (numberOfClicks < 2 || numberOfClicks == 2)
        {

            if (this.Image1 == null)
            {
                Image1 = card;
            }
            else if (this.Image2 == null)
            {
                Image2 = card;
            }
        }

        if (numberOfClicks == 2)
        {
            checkPair(Image1, Image2);

            numberOfClicks = 0;
            Image1 = null;
            Image2 = null;
        }
    }

    public void checkPair(Image card1, Image card2)
    {
        this.Image1 = card1;
        this.Image2 = card2;

        if (card1.Source.Equals(card2.Source))
        {
            score++;       
        }
        else
        {
            resetCards(Image1, Image2);
        }

    }

    private bool hasDelay;
    private async void resetCards(Image card1, Image card2)
    {
        this.Image1 = card1;
        this.Image2 = card2;

        hasDelay = true;
        await Task.Delay(1000);


        card1.Source = new BitmapImage(new Uri("/images/back.png", UriKind.Relative));
        card2.Source = new BitmapImage(new Uri("/images/back.png", UriKind.Relative));
        hasDelay = false;
    }

    public List<ImageSource> GetImagesList()
    {
        List<ImageSource> images = new List<ImageSource>();
        List<string> random1 = new List<string>();
        List<string> random2 = new List<string>();

        for (int i = 0; i < 16; i++)
        {
            if (i < 8)
            {
                int imageNR = 0;

                Random rnd = new Random();
                imageNR = rnd.Next(1, 9);
                if (random1.Contains(Convert.ToString(imageNR)))
                {
                    i--;
                }
                else
                {
                    random1.Add(Convert.ToString(imageNR));
                    ImageSource source = new BitmapImage(new Uri("images/" + imageNR + ".png", UriKind.Relative));
                    images.Add(source);
                }
            }
            if (i >= 8)
            {
                int imageNR = 0;

                Random rnd = new Random();
                imageNR = rnd.Next(1, 9);
                if (random2.Contains(Convert.ToString(imageNR)))
                {
                    i--;
                }
                else
                {
                    random2.Add(Convert.ToString(imageNR));
                    ImageSource source = new BitmapImage(new Uri("images/" + imageNR + ".png", UriKind.Relative));
                    images.Add(source);
                }
            }
        }
        return images;
    }
}