WinForm LED循环显示信息，使用定时器Threading.Timer

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Windows.Forms;
using System.Threading;
namespace WindowsFormsThreading
{
public partial class FormTimer : Form
    {
        //线程暂停时间 单位：毫秒
        static int _timespan = 2000;
        //每页显示行数 范围1-5
        static int _pagerowcount = 4;
        //每行固定显示5个
        static int _pagerownumber = 5;
        //总页数
        static int _pagetotal = 0;
        //当前页
        static int _pageindex = 1;
        static int _rowindex = 0;
        //获取正在处理列表
        private static IListstring> _namelist;
        //声明定时器
        private static System.Threading.Timer _timer;
        //定义委托
        private delegate void SetTLPNameListDelegate();
        //声明委托变量
        private SetTLPNameListDelegate _settlpnamelist;
        public FormTimer()
        {
            InitializeComponent();
            _settlpnamelist = LoadLEDForm;//设置委托变量的方法
            BeginTimer();
        }
        private void BeginTimer()
        {
//TimerCallback 委托，指定timer定时器需要执行的方法 ThreadMethod
            TimerCallback tmrcallback = new TimerCallback(ThreadMethod);
//示例化定时器
            _timer = new System.Threading.Timer(tmrcallback, null, 0, _timespan);
        }
        private void ThreadMethod(object state)
        {
if (this.InvokeRequired)
this.Invoke(_settlpnamelist);
        }
        /// 

/// 设置正在处理列表
/// 
        private void LoadLEDForm()
        {
            SetQueueOrder();
            SetName();
            SetNameList();
        }
/// 

/// 设置等待列表
/// 
        private void SetNameList()
        {
if (_pageindex == 1)
            {
                GetNameList();
                _pagetotal = (int)Math.Ceiling((float)_namelist.Count / (_pagerowcount * _pagerownumber));
                if (_pagetotal 1) { _pagetotal = 1; }
            }
if (_namelist != null && _namelist.Count > 0)
            {
int column = 0;
                tlpaNameList.Controls.Clear();
                _rowindex = 0;
int i = 0;
int startIndex = (_pageindex - 1) * (_pagerowcount * _pagerownumber);
int endIndex = _pageindex * (_pagerowcount * _pagerownumber);
for (; i                 {
if (i >= startIndex && i                     {
if (_rowindex > _pagerowcount - 1)
break;
if (column > _pagerownumber - 1)
                        {
                            column = 0;
                            _rowindex++;
                        }
                        Addlabel(_namelist[i], column);
                        column++;
                    }
                }
                lblPageNumber.Text = string.Format("页码 {0}/{1}", _pageindex, _pagetotal);
                _pageindex++;
if (_pageindex > _pagetotal)
                {
                    _pageindex = 1;
                }
            }
        }
        /// 

/// 设置排队叫号
/// 
        private void SetQueueOrder()
        {
            lblOrder.Text = _pageindex + " 号";
        }
        /// 

/// 设置催缴费
/// 
        private void SetName()
        {
            lblName.Text = "唐鑫瑞" + _pageindex;
        }
        private void Addlabel(String text, int columnindex)
        {
            Label label = new Label();
            label.Dock = DockStyle.Top;
            label.ForeColor = Color.Yellow;
            label.BackColor = Color.Black;
            label.Font = new System.Drawing.Font("宋体", 12F);
            label.Text = text;
            label.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
            tlpaNameList.Controls.Add(label, columnindex, _rowindex);
        }
        /// 

/// 模拟一个列表（列表中有30个对象），每个列表显示完成后，自动新增一个对象，用来模拟等待列表的人数在增加
/// 
        public void GetNameList()
        {
if (_namelist == null || _namelist.Count 1)
            {
                _namelist = new Liststring>();
for (int i = 1; i 31; i++)
                {
                    _namelist.Add("唐鑫瑞" + i);
                }
            }
else
            {
if (_pageindex == 1)
                    _namelist.Add("唐鑫瑞" + (_namelist.Count + 1));
            }
        }
        private void FormTimer_Load(object sender, EventArgs e)
        {
        }
    }
}