Question

我试图将我的方法改为班级。我做到了，但有些工作没有发生：

传递(object sender, EventArgs e)的正确方法是什么？

这是使用该方法的代码：

public void GetPlayerChoice_Click(object sender, EventArgs e)

    { 
        ChangeProperties(sender, e);
        PlayerWon();
    }

这是方法：

    //Change the properties of the buttond and cheack who's turn is it.
    public void ChangeProperties(object sender, EventArgs e)
        {
            var btn = sender as Button;

            if (playerX.Turn == true)
            {
                btn.Text = playerX.Name;
                btn.BackColor = Color.FromArgb(255, 15, 0);
                playerX.Turn = false;
                playerO.Turn = true;
                buttonUser1.BackColor = Color.FromArgb(255, 156, 53);
                buttonUser2.BackColor = Color.FromArgb(255, 255, 255);
            }

            else
            {
                btn.Text = playerO.Name;
                btn.BackColor = Color.FromArgb(96, 255, 40);
                playerX.Turn = true;
                playerO.Turn = false;
                buttonUser1.BackColor = Color.FromArgb(255, 255, 255);
                buttonUser2.BackColor = Color.FromArgb(255, 156, 53);
            }
            btn.Enabled = false;
        }
        //Cheack if there is a winer. 
        public void PlayerWon()
        {
            if ((button1.Text == button2.Text && button2.Text == button3.Text) ||  //horizontal
                 (button4.Text == button5.Text && button5.Text == button6.Text) || //horizontal
                 (button7.Text == button8.Text && button8.Text == button9.Text) || //horizontal
                 (button1.Text == button4.Text && button4.Text == button7.Text) || //vertical
                 (button2.Text == button5.Text && button5.Text == button8.Text) || //vertical
                 (button3.Text == button6.Text && button6.Text == button9.Text) || //vertical
                 (button1.Text == button5.Text && button5.Text == button9.Text) || //slanted
                 (button3.Text == button5.Text && button5.Text == button7.Text))   //slanted
            {
                EnableAllButtonFalse();

                if (playerX.Turn == true)
                {
                    MessageBox.Show("O is the winner");
                    playerO.Score += 1;
                }
                if (playerX.Turn == false)
                {
                    MessageBox.Show("X is the winner");
                    playerX.Score += 1;
                }
                NewGame();
            }
        }
        //Enable false all button in the game.
        public void EnableAllButtonFalse()
        {
            foreach (Control c in Controls)
            {
                if (c is Button)
                {
                    c.Enabled = false;
                }
            }
        }

        //Enable true all button in the game.
        public void EnableAllButtonTrue()
        {
            foreach (Control c in Controls)
            {
                if (c is Button)
                {
                    c.Enabled = true;
                }
            }
        }

        public void NewGame()
        {
        EnableAllButtonTrue();

        if(playerX.Turn == false)
            {
                playerX.Turn = true;
                playerO.Turn = false;
            }
        else
            {
                playerX.Turn = false;
                playerO.Turn = true;
            }
        }

当我改变我的程序以使用它没有正常工作的方法时。它只做了一些代码。我无法理解它为什么会发生。

这是使用该类的代码：

public void GetPlayerChoice_Click(object sender, EventArgs e)
    {
        ExtensionMethods ex = new ExtensionMethods();
        ex.Sender = sender;
        ex.E = e;
        ex.ChangeProperties(sender, e);
        ex.PlayerWon();
    }

这是班级：

    class  ExtensionMethods : Form1
    {
    private object sender;
    private EventArgs e;

    public object Sender { get; set; }
    public EventArgs E { get; set; }


    //Change the properties of the buttond and cheack who's turn is it.
    public void ChangeProperties(object sender, EventArgs e)
        {
            var btn = sender as Button;

            if (playerX.Turn == true)
            {
                btn.Text = playerX.Name;
                btn.BackColor = Color.FromArgb(255, 15, 0);
                playerX.Turn = false;
                playerO.Turn = true;
                buttonUser1.BackColor = Color.FromArgb(255, 156, 53);
                buttonUser2.BackColor = Color.FromArgb(255, 255, 255);
            }

            else
            {
                btn.Text = playerO.Name;
                btn.BackColor = Color.FromArgb(96, 255, 40);
                playerX.Turn = true;
                playerO.Turn = false;
                buttonUser1.BackColor = Color.FromArgb(255, 255, 255);
                buttonUser2.BackColor = Color.FromArgb(255, 156, 53);
            }
            btn.Enabled = false;
        }
        //Cheack if there is a winer. 
        public void PlayerWon()
        {
            if ((button1.Text == button2.Text && button2.Text == button3.Text) ||  //horizontal
                 (button4.Text == button5.Text && button5.Text == button6.Text) || //horizontal
                 (button7.Text == button8.Text && button8.Text == button9.Text) || //horizontal
                 (button1.Text == button4.Text && button4.Text == button7.Text) || //vertical
                 (button2.Text == button5.Text && button5.Text == button8.Text) || //vertical
                 (button3.Text == button6.Text && button6.Text == button9.Text) || //vertical
                 (button1.Text == button5.Text && button5.Text == button9.Text) || //slanted
                 (button3.Text == button5.Text && button5.Text == button7.Text))   //slanted
            {
                EnableAllButtonFalse();

                if (playerX.Turn == true)
                {
                    MessageBox.Show("O is the winner");
                    playerO.Score += 1;
                }
                if (playerX.Turn == false)
                {
                    MessageBox.Show("X is the winner");
                    playerX.Score += 1;
                }
                NewGame();
            }
        }
        //Enable false all button in the game.
        public void EnableAllButtonFalse()
        {
            foreach (Control c in Controls)
            {
                if (c is Button)
                {
                    c.Enabled = false;
                }
            }
        }

        //Enable true all button in the game.
        public void EnableAllButtonTrue()
        {
            foreach (Control c in Controls)
            {
                if (c is Button)
                {
                    c.Enabled = true;
                }
            }
        }

        public void NewGame()
        {
        EnableAllButtonTrue();

        if(playerX.Turn == false)
            {
                playerX.Turn = true;
                playerO.Turn = false;
            }
        else
            {
                playerX.Turn = false;
                playerO.Turn = true;
            }
        }

Answer 1

我简化了您的代码，并且能够让它运行起来。 Here is a .NETFiddle of it working

这是代码。

using System;

public class  ExtensionMethods 
{
    public static void Main()
    {
        ExtensionMethods em = new ExtensionMethods();
        em.PlayerWon();
    }

    public void PlayerWon()
    {
        NewGame();

    }

    public void NewGame()
    {
        Console.Write("Starting New Game");
    }
}

要使用发件人，您需要执行以下操作：

void HandleMyButton(object sender, EventArgs e)
{
    // this method can have some arguments, if needed
    DoButtonWork();
}

如何将方法转换为类？

1 个答案: