Question

我目前有一个扩展System.Windows.Forms.Label类的类。我正在寻找扫雷程序来进行知识分配。它基本上为常规标签添加了一些功能，然后在form1.cs部分中实例化。

public partial class Cell : System.Windows.Forms.Label
{
    private bool hasBomb;
    private bool isRevealed;
    private int neighbourBombCount;
    static int BombAmount;

    // Properties
    public bool HasBomb
    {
        get { return hasBomb; }
        set { hasBomb = value; }
    }

    public bool IsRevealed
    {
        get { return isRevealed; }
        set { isRevealed = value; }
    }

    public int NeighbourBombCount
    {
        get { return neighbourBombCount; }
        set { neighbourBombCount = value; }
    }


    // constructors
    public Cell()
    {
        hasBomb = false;
        isRevealed = false;
        neighbourBombCount = 0;
        this.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
        this.Size = new System.Drawing.Size(50, 50);

    }

然后是form1.cs：

    public partial class Form1 : Form
{
    // Public variable declarations
    int chance;
    Random rand1 = new Random();
    static int bombAmount;

    public Form1()
    {
        InitializeComponent();
        this.AutoSize = false;
        this.Width = 420;
        this.Height = 420;
        createGrid();
    }

    public void createGrid()
    {
        for (int i = 0; i < 8; i++)
        {
            for (int j = 0; j < 8; j++)
            {

                grid[i][j] = new Cell();
                grid[i][j].Name = "grid" + i.ToString() + j.ToString();
                grid[i][j].Location = new System.Drawing.Point(i * 49, j * 49);
                grid[i][j].Size = new System.Drawing.Size(50, 50);
                grid[i][j].TabIndex = 0;


                chance = rand1.Next(0, 6);
                if (chance % 6 == 0 && bombAmount < 10)
                {
                    grid[i][j].HasBomb = true;
                    bombAmount++;
                }
            }
        }

        for (int i = 0; i < 8; i++)
        {
            for (int j = 0; j <8; j++)
            {
                this.Controls.Add(grid[i][j]);
            }
        }
    }
private Cell[][] grid = new Cell[8][];

其中有一些逻辑，现在不重要。问题是没有任何东西出现，我错过了什么？

Answer 1

您没有初始化锯齿状阵列的第二部分。

尝试添加此内容：

public void createGrid() {
  for (int i = 0; i < 8; i++) {
    grid[i] = new Cell[8];

无法获得扩展标签类以在Windows窗体应用程序中显示

1 个答案: