C# Winform自定义点阵控件

1、创建点阵控件
在控件库添加用户控件（Windows窗体），命名为MatrixArray；
在属性/布局栏将Size设置为680，700。
2、创建数据模型

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace UserControlLib.Models
{
    public class UnitData
    {
        public string Address { get; set; }
        public int SingleBitCount { get; set; }
        public int MultiBitsCount { get; set; }
        public int Status { get; set; }
    }
}

3、修改MatrixArray.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using UserControlLib.Models;

namespace UserControlLib
{
    public partial class MemoryArray : UserControl
    {
        private Color[] unitColor = new Color[3] { Color.Green, Color.Blue, Color.Red };
        private string[] unitStatus = new string[3] { "状态正常", "单位翻转", "多位翻转" };
        InfoTip userTip = new InfoTip();

        public MemoryArray()
        {
            InitializeComponent();
            this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
            this.SetStyle(ControlStyles.DoubleBuffer, true);
            this.SetStyle(ControlStyles.ResizeRedraw, true);
            this.SetStyle(ControlStyles.Selectable, true);
            this.SetStyle(ControlStyles.SupportsTransparentBackColor, true);
            this.SetStyle(ControlStyles.UserPaint, true);
            this.MouseDown += UcSwitch_MouseDown;
            userTip.Content = "地址：0x00000-0x000FF,单位翻转：100,多位翻转：200,X：100,Y：200";
            userTip.Location = new System.Drawing.Point(1100, 500);
            userTip.Name = "userTip1";
            userTip.Size = new System.Drawing.Size(150, 120);
            userTip.Visible = true;
            this.Controls.Add(userTip);
        }

        void UcSwitch_MouseDown(object sender, MouseEventArgs e)
        {
            int x = e.X;
            int y = e.Y;
            int unitWidth = (this.Width - 40) / 64;
            int unitHeigh = (this.Height - 50) / 64;
            if (x < 25 || x > (this.Width - 20) || y < 25 || y > (this.Height - 30))
            {
                return;
            }
            int column = (x - 25) / unitWidth;
            if ((x - 25) % unitWidth != 0)
            {
                column++;
            }
            int row = (y - 25) / unitHeigh;
            if ((y - 25) % unitHeigh != 0)
            {
                row++;
            }
            int i = 64 * (row - 1) + column - 1;
            //MessageBox.Show($"地址: {Data[i].Address}\n单位翻转: {Data[i].SingleBitCount}\n多位翻转: {Data[i].MultiBitsCount}");

            userTip.Visible = true;

            userTip.Content = $"地址：{Data[i].Address},单位翻转：{Data[i].SingleBitCount},多位翻转：{Data[i].MultiBitsCount},X：{x},Y：{y}";
            int locationX = 25 + column * unitWidth;
            if ((locationX + userTip.Width) > (this.Width - 25))
            {
                locationX -= userTip.Width;
            }
            int locationY = 25 + row * unitHeigh;
            if ((locationY + userTip.Height) > (this.Height - 20))
            {
                locationY -= userTip.Height;
            }
            userTip.Location = new System.Drawing.Point(locationX, locationY);
        }

        protected override void OnPaint(PaintEventArgs e)
        {
            base.OnPaint(e);
            var g = e.Graphics;
            g.SmoothingMode = SmoothingMode.AntiAlias;
            Console.WriteLine(this.Width);
            Console.WriteLine(this.Height);
            int unitWidth = (this.Width - 40) / 64;
            int unitHeigh = (this.Height - 50) / 64;

            // 绘制横坐标
            for (int i = 0; i < 9; i++)
            {
                g.DrawString((8 * i).ToString(), new Font("Yahei", 10f), new SolidBrush(Color.Black), 20 + 8 * unitWidth * i, 5);
            }
            // 绘制纵坐标
            for (int i = 0; i < 9; i++)
            {
                g.DrawString((8 * i).ToString(), new Font("Yahei", 10f), new SolidBrush(Color.Black), 5, 20 + 8 * unitHeigh * i);
            }
            // 绘制阵列
            for (int i = 0; i < 64; i++)
            {
                for (int j = 0; j < 64; j++)
                {
                    SolidBrush sb = new SolidBrush(Color.Green);
                    if (Data != null)
                    {
                        int k = Data[i * 64 + j].Status;
                        sb = new SolidBrush(unitColor[k]);
                    }

                    g.FillRectangle(sb, new Rectangle(25 + unitWidth * j + 1, 25 + unitHeigh * i + 1, unitWidth - 2, unitHeigh - 2));
                }
            }
            // 绘制标注
            int locationX = (this.Width - 360) / 2;
            int locationY = this.Height - 30;
            for (int i = 0; i < 3; i++)
            {
                SolidBrush sb = new SolidBrush(unitColor[i]);
                g.FillRectangle(sb, new Rectangle(locationX + 120 * i, locationY, 15, 15));
                g.DrawString(unitStatus[i], new Font("Yahei", 10f), new SolidBrush(Color.Black), locationX + 120 * i + 20, locationY);
            }
        }

        #region Properties
        private List<UnitData> data;

        public List<UnitData> Data
        {
            get { return data; }
            set { data = value; Invalidate(); }
        }

        //private int errorNumber;
        //[Description("通道名称"), Category("自定义")]
        //public int ErrorNumber
        //{
        //    get { return errorNumber; }
        //    set
        //    {
        //        errorNumber = value;
        //        string name = "button" + ErrorNumber;
        //        Control[] control = this.Controls.Find(name, true);
        //        Button button = (Button)control[0];
        //        button.BackColor = Color.Red;
        //    }
        //}
        #endregion

    }
}