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   源码介绍

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Xml;
using System.Windows.Threading;

namespace WpfCJ
{
    /// <summary>
    /// Window1.xaml 的交互逻辑
    /// </summary>
    public partial class Window1 : Window
    {
        protected List<Person> persons = new List<Person>();
        private DispatcherTimer timer = new DispatcherTimer();
        private DispatcherTimer timer2 = new DispatcherTimer();
        private int index = 0;

        #region NP
        string[] np = new string[] { "12", "15", "23" };
        
        #endregion

        public Window1()
        {
            InitializeComponent();
            InitData();
            timer.Tick  = new EventHandler(timer_Tick);
            timer.Interval = TimeSpan.FromSeconds(0.03);
            timer2.Tick  = new EventHandler(timer2_Tick);
            timer2.Interval = TimeSpan.FromSeconds(0.0001);
            btnStart.Focus();
        }

        void timer_Tick(object sender, EventArgs e)
        {
            if (index == persons.Count)
                index = 0;
            ShowName(persons, index);
            index  ;
        }

        void timer2_Tick(object sender, EventArgs e)
        {
            if (index == persons.Count)
                index = 0;
           
            ShowName(persons, index);

            if (!CheckIn(lblNameShow.Content.ToString()) && !persons.Find(delegate(Person toFind) { return toFind.Name == lblNameShow.Content.ToString(); }).Check)
            {
                timer2.Stop();
                persons.Find(delegate(Person toFind) { return toFind.Name == lblNameShow.Content.ToString(); }).Check = true;
            }
            else
                timer2.Stop();
            index  ;
        }

        protected void InitData()
        {
            XmlDocument xdoc = new XmlDocument();
            xdoc.Load("Data.xml");
            XmlElement root = xdoc.DocumentElement;
            foreach (XmlNode temp in root.ChildNodes)
            {
                Person tempPerson = new Person();
                tempPerson.Name = temp.FirstChild.Value;
                persons.Add(tempPerson);
            }
        }

        private void btnStart_Click(object sender, RoutedEventArgs e)
        {
            persons = RandomSortList<Person>(persons); 
            timer.Start();
            btnStart.Visibility = Visibility.Hidden;
            btnStop.Visibility = Visibility.Visible;
            btnStop.Focus();
        }

        private void btnStop_Click(object sender, RoutedEventArgs e)
        {
            if (CheckIn(lblNameShow.Content.ToString()) || persons.Find(delegate(Person toFind) { return toFind.Name == lblNameShow.Content.ToString(); }).Check)
            {
                timer.Stop();
                timer2.Start();
            }
            else
            {
                timer.Stop();
                //persons.Find(delegate(Person toFind) { return toFind.Name == lblNameShow.Content.ToString(); }).Check = true;
                persons.Find(p => p.Name == lblNameShow.Content.ToString()).Check = true;
            }
            btnStart.Visibility = Visibility.Visible;
            btnStop.Visibility = Visibility.Hidden;
            btnStart.Focus();
        }

        protected bool CheckIn(string name)
        {
            bool result = false;
            for (int i = 0; i < 3; i  )
            {
                if (np[i].ToString() == name)
                    result = true;
            }
            return result;
        }
        //51aspx.com 下载
        protected void RemovePerson()
        {
            Person temp = new Person();
            temp.Name = lblNameShow.Content.ToString();
            persons.Remove(temp);
        }
       
        /// <summary>
        /// 对List进行随机排序
        /// </summary>
        /// <param name="ListT"></param>
        /// <returns></returns>
        public List<T> RandomSortList<T>(List<T> ListT)
        {
            Random random = new Random();
            List<T> newList = new List<T>();
            foreach (T item in ListT)
            {
                newList.Insert(random.Next(newList.Count   1), item);
            }
            return newList;
        }

        public void ShowName(List<Person> toshow, int index)
        {
            lblNameShow.Content = toshow[index].Name;
        }

        private void btnStart_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.Key == Key.Space)
                e.Handled = true;
        }

        private void btnStop_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.Key == Key.Space)
                e.Handled = true;
        }

        private void button1_Click(object sender, RoutedEventArgs e)
        {
            this.Close();
        }

        private void Window_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            this.DragMove();
        }
    }

    public class Person
    {
        private string _name;
        private bool _check = false;

        public string Name
        {
            get { return _name; }
            set { this._name = value; }
        }

        public bool Check
        {
            get { return _check; }
            set { this._check = value; }
        }
    }
}