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

namespace TextEdit
{
    public partial class Form1 : Form
    {
        public ArrayList list = new ArrayList();
        public Form1()
        {
            InitializeComponent();
            addList();//添加集合中文
        }

        private void tBox_TextChanged(object sender, EventArgs e)
        {
            this.lstBox.Items.Clear();
            System.Text.RegularExpressions.Regex reg = new System.Text.RegularExpressions.Regex("[^a-zA-Z\r\n]+");
            if (!reg.Match(tBox.Text).Success)
            {
                //遍历ArrayList中的所有信息 
                foreach (object obj in list)
                {
                    //获得各汉字拼音首字母缩写 
                    string strName = GetChineseSpell(obj.ToString()).ToLower();
                    string strTxtName = tBox.Text.ToLower();
                    //根据拼音进行匹配
                    if (strName.Contains(strTxtName) && strName.Substring(0, strTxtName.Length) == strTxtName)
                    {
                        lstBox.Items.Add(obj);
                    }
                }
                return;
            }
            //检索信息为空,就显示所有信息
            lstBox.DataSource = list;
        }
        /// <summary>      
        /// 拼音检索   
        /// </summary>    
        /// <param name="strText"></param>    
        /// <returns></returns>        
        static public string GetChineseSpell(string strText)
        {
            int len = strText.Length;
            StringBuilder strBuilder = new StringBuilder();
            for (int i = 0; i < len; i++)
                strBuilder.Append(getLetters(strText.Substring(i, 1)));
            return strBuilder.ToString();
        }

        /// <summary>
        /// 得到首字母
        /// </summary>
        /// <param name="strChar"></param>
        /// <returns></returns> 
        public static string getLetters(string strChar)
        {
            byte[] byteLetters = Encoding.Default.GetBytes(strChar);
            if (byteLetters.Length > 1)
            {
                int first = (short)byteLetters[0];
                int second = (short)byteLetters[1];
                int code = (first << 8) + second;
                int[] areacode = { 45217, 45253, 45761, 46318, 46826, 47010, 47297, 47614, 48119, 48119, 49062, 49324, 49896, 50371, 50614, 50622, 50906, 51387, 51446, 52218, 52698, 52698, 52698, 52980, 53689, 54481 };
                for (int i = 0; i < 26; i++)
                {
                    int max = 55290;
                    if (i != 25) max = areacode[i + 1];
                    if (areacode[i] <= code && code < max)
                        return Encoding.Default.GetString(new byte[] { (byte)(65 + i) });
                }
                return string.Empty;
            }
            else
                return strChar;
        }

        public void addList()
        {
            list.Add("奇元");
            list.Add("玉环");
            list.Add("曹操");
            list.Add("曹丕");
            list.Add("常在");
            list.Add("常义"); 
            list.Add("张三四"); 
        }
    }
}