错误 CS0115：“Pong.Form1.Dispose(bool)”：找不到合适的方法来覆盖

Question

我试图编译这段代码，但它不起作用，编译时出现这个错误：

Pong\Form1.Designer.cs(14,33,14,40): 错误 CS0115: 'Pong.Form1.Dispose(bool)': 找不到合适的方法来覆盖

using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Media;

namespace Pong
{
    public partial class gameArea : Form
    {
        PictureBox picBoxPlayer, picBoxAI, picBoxBall;
        Timer gameTime; // also the game loop

        const int SCREEN_WIDTH = 800;
        const int SCREEN_HEIGHT = 600;

        Size sizePlayer = new Size(25, 100);
        Size sizeAI = new Size(25, 100);
        Size sizeBall = new Size(20, 20);

        const int gameTimeInterval = 1;

        const int ballStartSpeed = 2;
        const int ballIncreaseSpeedRate = 1;
        const int ballSpeedLimited = 15;

        const int aiOffSetLoops = 15;

        int ballSpeedX = ballStartSpeed;
        int ballSpeedY = ballStartSpeed;


        Random rad;
        int aiOffSet;
        int aiOffSetCounter;

        Dictionary<string, SoundPlayer> sounds;

        public gameArea()
        {
            InitializeComponent();

            this.DoubleBuffered = true;

            picBoxPlayer = new PictureBox();
            picBoxAI = new PictureBox();
            picBoxBall = new PictureBox();

            gameTime = new Timer();
            gameTime.Interval = gameTimeInterval;

            gameTime.Tick += new EventHandler(gameTime_Tick);

            this.Width = SCREEN_WIDTH;
            this.Height = SCREEN_HEIGHT;
            this.StartPosition = FormStartPosition.CenterScreen;
            this.BackColor = Color.Black;

            picBoxPlayer.Size = sizePlayer;
            picBoxPlayer.Location = new Point(picBoxPlayer.Width / 2, ClientSize.Height / 2 - picBoxPlayer.Height / 2);
            picBoxPlayer.BackColor = Color.Blue;
            this.Controls.Add(picBoxPlayer);

            picBoxAI.Size = sizeAI;
            picBoxAI.Location = new Point(ClientSize.Width - (picBoxAI.Width + picBoxAI.Width / 2), ClientSize.Height / 2 - picBoxPlayer.Height / 2); // TODO: why picBoxPlayer and not picBoxAI?
            picBoxAI.BackColor = Color.Red;
            this.Controls.Add(picBoxAI);

            rad = new Random();
            aiOffSet = 0;
            aiOffSetCounter = 1;

            picBoxBall.Size = sizeBall;
            picBoxBall.Location = new Point(ClientSize.Width / 2 - picBoxBall.Width / 2, ClientSize.Height / 2 - picBoxBall.Height / 2);
            picBoxBall.BackColor = Color.Green;
            this.Controls.Add(picBoxBall);

            // Load Sounds
            sounds = new Dictionary<string, SoundPlayer>();
            for (int k = 1; k <= 10; k++)
            {
                sounds.Add(String.Format(@"pong{0}", k), new SoundPlayer(String.Format(@"pong{0}.wav", k)));
            }

            // Start Game loop
            gameTime.Enabled = true;
        }

        void gameTime_Tick(object sender, EventArgs e)
        {
            picBoxBall.Location = new Point(picBoxBall.Location.X + ballSpeedX, picBoxBall.Location.Y + ballSpeedY);
            gameAreaCollosions();
            padlleCollision();
            playerMovement();
            aiMovement();
        }

        private void iaChangeOffSet()
        {
            if (aiOffSetCounter >= aiOffSetLoops)
            {
                aiOffSet = rad.Next(1, picBoxAI.Height + picBoxBall.Height);
                aiOffSetCounter = 1;
            }
            else
            {
                aiOffSetCounter++;
            }
        }

        private void gameAreaCollosions()
        {
            if (picBoxBall.Location.Y > ClientSize.Height - picBoxBall.Height || picBoxBall.Location.Y < 0)
            {
                iaChangeOffSet();
                ballSpeedY = -ballSpeedY;
                sideCollision();
            }
            else if (picBoxBall.Location.X > ClientSize.Width)
            {
                padlleSideCollision();
                resetBall();
            }
            else if (picBoxBall.Location.X < 0)
            {
                padlleSideCollision();
                resetBall();
            }
        }
        private void resetBall()
        {
            if (ballSpeedX > 0)
                ballSpeedX = -ballStartSpeed;
            else
                ballSpeedX = ballStartSpeed;
            if (ballSpeedY > 0)
                ballSpeedY = -ballStartSpeed;
            else
                ballSpeedY = ballStartSpeed;

            aiOffSet = 0;
            picBoxBall.Location = new Point(ClientSize.Width / 2 - picBoxBall.Width / 2, ClientSize.Height / 2 - picBoxBall.Height / 2);
        }
        private void playerMovement()
        {
            if (this.PointToClient(MousePosition).Y >= picBoxPlayer.Height / 2 && this.PointToClient(MousePosition).Y <= ClientSize.Height - picBoxPlayer.Height / 2)
            {
                int playerX = picBoxPlayer.Width / 2;
                int playerY = this.PointToClient(MousePosition).Y - picBoxPlayer.Height / 2;

                picBoxPlayer.Location = new Point(playerX, playerY);
            }
        }
        private void aiMovement()
        {
            int aiX = ClientSize.Width - (picBoxAI.Width + picBoxAI.Width / 2);
            int aiY = (picBoxBall.Location.Y - picBoxAI.Height / 2) + aiOffSet;

            if (aiY < 0)
                aiY = 0;
            if (aiY > ClientSize.Height - picBoxAI.Height)
                aiY = ClientSize.Height - picBoxAI.Height;

            picBoxAI.Location = new Point(aiX, aiY);
        }
        private void padlleCollision()
        {
            if (picBoxBall.Bounds.IntersectsWith(picBoxAI.Bounds))
            {
                picBoxBall.Location = new Point(picBoxAI.Location.X - picBoxBall.Width, picBoxBall.Location.Y);
                ballSpeedX = -ballSpeedX;
                aiCollision();
            }
            if (picBoxBall.Bounds.IntersectsWith(picBoxPlayer.Bounds))
            {
                picBoxBall.Location = new Point(picBoxPlayer.Location.X + picBoxPlayer.Width, picBoxBall.Location.Y);
                ballSpeedX = -ballSpeedX;
                playerCollision();
            }
        }
        private void playerCollision()
        {
            sounds["pong1"].Play();
            SlowDownBall();
        }
        private void aiCollision()
        {
            sounds["pong2"].Play();
            SlowDownBall();
        }
        private void sideCollision()
        {
            sounds["pong3"].Play();

            SpeedUpBall();
        }
        private void padlleSideCollision()
        {
            sounds["pong9"].Play();
        }
        private void SpeedUpBall()
        {
            if (ballSpeedY > 0)
            {
                ballSpeedY += ballIncreaseSpeedRate;
                if (ballSpeedY >= ballSpeedLimited)
                    ballSpeedY = ballSpeedLimited;
            }
            else
            {
                ballSpeedY -= ballIncreaseSpeedRate;
                if (ballSpeedY <= -ballSpeedLimited)
                    ballSpeedY = -ballSpeedLimited;
            }

            if (ballSpeedX > 0)
            {
                ballSpeedX += ballIncreaseSpeedRate;
                if (ballSpeedX >= ballSpeedLimited)
                    ballSpeedX = ballSpeedLimited;
            }
            else
            {
                ballSpeedX -= ballIncreaseSpeedRate;
                if (ballSpeedX <= -ballSpeedLimited)
                    ballSpeedX = -ballSpeedLimited;
            }
        }
        private void SlowDownBall()
        {
            if (ballSpeedY > 0)
            {
                ballSpeedY -= ballIncreaseSpeedRate;
                if (ballSpeedY <= ballStartSpeed)
                    ballSpeedY = ballStartSpeed;
            }
            else
            {
                ballSpeedY += ballIncreaseSpeedRate;
                if (ballSpeedY >= -ballStartSpeed)
                    ballSpeedY = -ballStartSpeed;
            }

            if (ballSpeedX > 0)
            {
                ballSpeedX -= ballIncreaseSpeedRate;
                if (ballSpeedX <= ballStartSpeed)
                    ballSpeedX = ballStartSpeed;
            }
            else
            {
                ballSpeedX += ballIncreaseSpeedRate;
                if (ballSpeedX >= -ballStartSpeed)
                    ballSpeedX = -ballStartSpeed;
            }
        }
    }
}

Answer 1

正如 cmets 中所暗示的，更改 .cs 文件中的类名而不更新其他引用可能会破坏事情。您从Form1 类开始，将其中一个引用更改为gameArea，但没有更改其他引用。因此，您有 两个 类，gameArea 派生自 Form，Form1 隐式派生自 object。 Form1 包含 Dispose 方法，但 object 没有任何要覆盖的 Dispose 方法。

要解决此问题，首先将gameArea 改回Form1。那应该让您的代码再次编译。然后打开设计器，并使用它将Form1 重命名为gameArea。这将比您手动更新更多。

Hans Passant 在 cmets 中指出，也可以使用上下文菜单（在“重构”下）中的“重命名”选项来代替设计器。这将更新代码中的任何引用，而无需通过创建设计时表单并保存它的过程。因此，可能与在设计器中重命名所得到的结果略有不同，例如，如果您的代码访问表单的 Name 属性，但对于大多数程序来说，它应该足够好。