动态创建User Control时控件间间隙的消除方法咨询

我需要动态创建数量可变的User Control展示元素，单个Station控件显示正常，但将4个Station控件排列成正方形时，即便把Margin和Padding都设为0，控件之间还是有无法消除的间隙。调整Location属性也没解决，求消除间隙的方法。

Station控件代码 #

using System.Drawing;
using System.Windows.Forms;

namespace NewOPCMotion.CustomComponents
{
    public partial class Station : UserControl
    {
        private int _StationNumber;
        private int _StationPosition;

        public Station()
        {
            InitializeComponent();

            // 基于lb_Station设置所有尺寸
            lb_StnNo.Location = new Point(0, 0);
            lb_StnNo.Size = new Size(Constants.STATION_LB_WIDTH, Constants.STATION_LB_HEIGHT);

            // 将DPS居中在lb_Station内
            DPS.Location = new Point((lb_StnNo.Size.Width - DPS.Size.Width) / 2, (lb_StnNo.Size.Height - DPS.Height) / 2);
            Motor.Location = new Point((lb_StnNo.Size.Width - Motor.Size.Width) / 2, lb_StnNo.Size.Height);

            // SV紧贴lb_Station右侧
            SV.Location = new Point(lb_StnNo.Width + 1, 1);

            // S1/S2位置
            S1.Location = new Point(lb_StnNo.Left + Constants.SENSOR_OFFSET, lb_StnNo.Size.Height - (S2.Height + 1));
            S2.Location = new Point(lb_StnNo.Right - S2.Width - Constants.SENSOR_OFFSET, lb_StnNo.Size.Height - (S2.Height + 1));

            // 面板尺寸
            pnl_Station.Size = new Size(SV.Right, Motor.Bottom);

            // 控件尺寸
            Size = new Size(pnl_Station.Size.Width, pnl_Station.Size.Height);
            //Padding = new Padding(0);
            //Margin = new Padding(0);

        }

        public void SetLocation(int X, int Y)
        {
            pnl_Station.Location = new Point(X, Y);
        }

        // 属性
        public int StationNumber
        {
            get { return _StationNumber; } 
            set
            {
                _StationNumber = value;
                lb_StnNo.Text = "Stn " + StationNumber.ToString();
            } 
        }
        public int StationPosition
        {
            get { return _StationPosition; }   // 获取方法
            set { _StationPosition = value; }  // 设置方法
        }
    }
}

ProcessModule控件代码 #

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

namespace NewOPCMotion.CustomComponents
{
    public partial class ProcessModule : UserControl
    {
        private Station[] Stations;
        private Panel ModulePanel;

        public ProcessModule()
        {
            InitializeComponent();

            Stations = new Station[4];
            ModulePanel = pnl_Module;

            for (int i = 0; i < 4; i++)
            {
                Stations[i] = new Station();
                Stations[i].StationPosition = i;
                Stations[i].Margin = new Padding(0);
                Stations[i].Padding = new Padding(0);
                ModulePanel.Controls.Add(Stations[i]);
            }

            // 排列W、X、Y、Z四个Station
            ModulePanel.Controls[0].Location = new Point(0, 0);
            ModulePanel.Controls[1].Location = new Point(ModulePanel.Controls[0].Right, 0);
            ModulePanel.Controls[2].Location = new Point(ModulePanel.Controls[0].Right, ModulePanel.Controls[0].Bottom);
            ModulePanel.Controls[3].Location = new Point(0, ModulePanel.Controls[0].Bottom);
            // Size = new Size(Constants.STATION_WIDTH * 2, Constants.STATION_HEIGHT * 2);

        }
        public void SetStationNumbers(int ModuleNumber)
        {
            for (int i = 0; i < 4; i++)
            {
                // TODO: 设置工位编号
                Stations[i].StationNumber = i;
            }
            
        }

        public void SetLocation(int X, int Y)
        {
            ModulePanel.Location = new Point(X, Y);
        }
    }
}

1. 修复Station控件的尺寸偏移问题 #

你的Station构造函数里，多个控件的位置设置用了+1的硬编码偏移，这会导致整个控件的尺寸被额外撑开，直接产生间隙。修改这些位置计算：

// SV位置修改
SV.Location = new Point(lb_StnNo.Width, 0);

// S1/S2位置修改
S1.Location = new Point(lb_StnNo.Left + Constants.SENSOR_OFFSET, lb_StnNo.Size.Height - S2.Height);
S2.Location = new Point(lb_StnNo.Right - S2.Width - Constants.SENSOR_OFFSET, lb_StnNo.Size.Height - S2.Height);

2. 彻底清零Station的内外边距 #

在Station构造函数中取消注释并启用Padding和Margin的设置，同时确保自动尺寸功能关闭：

// 在Station构造函数中添加
Padding = new Padding(0);
Margin = new Padding(0);
AutoSize = false;

3. 精确计算排列位置 #

不要依赖控件的Right/Bottom属性计算位置，直接用固定的Station尺寸值来定位，避免控件尺寸计算误差：

// 在ProcessModule构造函数中修改位置设置
int stationWidth = Stations[0].Width;
int stationHeight = Stations[0].Height;

ModulePanel.Controls[0].Location = new Point(0, 0);
ModulePanel.Controls[1].Location = new Point(stationWidth, 0);
ModulePanel.Controls[2].Location = new Point(stationWidth, stationHeight);
ModulePanel.Controls[3].Location = new Point(0, stationHeight);

4. 检查容器Panel的属性 #

确保pnl_Module的Padding也设置为new Padding(0)，并且AutoScroll属性设为false，避免滚动条或容器内边距导致的布局偏移。

内容的提问来源于stack exchange，提问作者mygrandclarity