Question

我正在尝试编写一个玩跳棋的C＃程序。到目前为止，我已经完成了所有＆＃34; Shallow＆＃34;诸如生成电路板和所有标签之类的东西等。

我的问题是所有控件都是动态添加的。所以我不能只是双击＆＃34;他们并定义了在Button_Click事件中做什么。

这是我生成表单的代码

    public partial class formGameBoard : Form
    {
        private readonly int m_BoardSize;
        private readonly string m_Player1Name;
        private readonly string m_Player2Name;
        private GameTile m_BlueTile;
        private bool m_IsThereBlue;

        public formGameBoard(int i_BoardSize, string i_Player1Name, string i_Player2Name)
        {
            m_BoardSize = i_BoardSize;
            m_Player1Name = i_Player1Name;
            m_Player2Name = i_Player2Name;
            if (m_Player2Name == "(Computer)")
            {
                m_Player2Name = "Computer";
            }
            m_IsThereBlue = false;
            InitializeComponent();

        }

        private void formGameBoard_Load(object sender, EventArgs e)
        {
            int SizeOfButton = 60;
            int ButtonRowindex = 0;
            int ButtonColindex = 0;
            this.Size = new System.Drawing.Size(30 + m_BoardSize * SizeOfButton, 100 + m_BoardSize * SizeOfButton);
            Button[,] PlayButtonArray = new Button[m_BoardSize, m_BoardSize];
            for (ButtonRowindex = 0; ButtonRowindex < m_BoardSize; ButtonRowindex++)
            {
                for (ButtonColindex = 0; ButtonColindex < m_BoardSize; ButtonColindex++)
                {
                    PlayButtonArray[ButtonRowindex, ButtonColindex] = new Button();
                    PlayButtonArray[ButtonRowindex, ButtonColindex].Size = new Size(SizeOfButton, SizeOfButton);
                    PlayButtonArray[ButtonRowindex, ButtonColindex].Left = 10 + ButtonRowindex * SizeOfButton;
                    PlayButtonArray[ButtonRowindex, ButtonColindex].Top = 50 + ButtonColindex * SizeOfButton;
                    if ((ButtonRowindex + ButtonColindex) % 2 == 0)
                    {
                        PlayButtonArray[ButtonRowindex, ButtonColindex].Enabled = false;
                        PlayButtonArray[ButtonRowindex, ButtonColindex].BackColor = Color.Gray;
                    }

                    this.Controls.Add(PlayButtonArray[ButtonRowindex, ButtonColindex]);
                }
            }

            FillButtons(PlayButtonArray);
        }

        public void FillButtons(Button[,] ButtonMatrix)
        {
            int i, j;
            for (i = 0; i < m_BoardSize; i++)
            {
                for (j = 0; j < m_BoardSize; j++)
                {
                    if ((i + j) % 2 == 1)
                    {
                        if (j <= (m_BoardSize / 2) - 2)
                        {
                            ButtonMatrix[i, j].Text = "O";
                        }

                        if (j > (m_BoardSize / 2))
                        {
                            ButtonMatrix[i, j].Text = "X";
                        }
                    }
                }
            }
        }

        struct GameTile
        {
            int RowIndex;
            int ColumnIndex;
        }
    }
}

我没有任何问题，在我看来它看起来非常好

我的问题是所有这些按钮都是动态添加的。我没有拖放他们。我在表单加载时创建了它们。现在，当我点击一个按钮时，我想要发生一些事情。例如，我想要单击的按钮将其颜色更改为蓝色。

我该怎么做？

Answer 1

为按钮添加click事件非常简单，如下所示：

public partial class MainWindow : Window, INotifyPropertyChanged
{
    #region INotifyPropertyChanged

    public event PropertyChangedEventHandler PropertyChanged = delegate { };

    protected void OnPropertyChanged(string property)
    {
        PropertyChanged(this, new PropertyChangedEventArgs(property));
    }

    #endregion

    private ObservableCollection<animalTypes1> _source1 = new ObservableCollection<animalTypes1> {
        new animalTypes1() { type1name = "Mammals" } };

    public ObservableCollection<animalTypes1> Source1
    {
        get { return _source1; }
    }

    private ObservableCollection<animalTypes2> _source2 = new ObservableCollection<animalTypes2> {
        new animalTypes2() { type2name = "Reptiles" } };

    public ObservableCollection<animalTypes2> Source2
    {
        get { return _source2; }
    }

    private bool _isSource2;

    public bool IsSource2
    {
        get { return _isSource2; }
        set
        {
            if (value != _isSource2)
            {
                _isSource2 = value;
                OnPropertyChanged("IsSource2");
            }
        }
    }

    public MainWindow()
    {
        InitializeComponent();
        DataContext = this;          
    }

    private void btn1_click(object sender, RoutedEventArgs e)
    {
        IsSource2 = false;
    }

    private void btn_click2(object sender, RoutedEventArgs e)
    {
        IsSource2 = true;
    }
}

或者如果你想让它成为一个可以处理许多按钮点击的方法，你可以这样做：

buttonName.Click += (sender, e) => { buttonName.Foreground = Colors.Blue; };

Answer 2

您可以为按钮的Click事件添加处理程序，并使用sender参数。

也可能数组中的按钮索引对您很重要，因此您可以将按钮的数组索引存储在Tag属性中，稍后再使用。

在for循环中：

var button = PlayButtonArray[ButtonRowindex, ButtonColindex];
button.Tag= new Point(ButtonRowindex, ButtonColindex);
button.Click += Button_Click;

Button_Click的代码：

private void Button_Click(object sender, EventArgs e)
{
    var button = sender as Button;
    //You can manipulate button here

    //Also to extract the button index in array:
    var indexes = (Point)button.Tag;

    MessageBox.Show(string.Format("This is the button at {0}, {1}", indexes.X, indexes.Y));
}

定义动态添加发件人的事件处理程序

2 个答案: