宽字符编码和解码通用类[CodeWidthChartUtility]

using System;
using System.Text;

/// <summary>
/// author:Stone_W
/// date:2010.12.23
/// desc:宽字符编码和解码
/// </summary>
public class CodeWidthChartUtility
{
    public CodeWidthChartUtility() { }

    // 无需转码的字符
    private static string NonEncodingChats = "abcdefghijklmnopqrstuvwxyz0123456789`!@#$%^&*()_+|-=\\,./;'[]{}:<>?";

    #region 判断需要转换的字符
    /// <summary>
    /// 判断需要转换的字符
    /// </summary>
    /// <param name="charValue">判断字符</param>
    /// <returns>bool</returns>
    private static bool IsToWindthChart(char charValue)
    {
        NonEncodingChats = NonEncodingChats.ToUpper() + NonEncodingChats.ToLower();
        return NonEncodingChats.IndexOf(charValue) == -1;
    }
    #endregion

    #region 宽字符编码
    /// <summary>
    /// 宽字符编码
    /// 1.编码后 有js控制 浏览器会自动解析[js无需解码]
    /// 2.后台控制xxx.InnerHtml=宽字符 会原样输出宽字符串[后台控制需要手动解析]
    /// </summary>
    /// <param name="StrValue">需要编码的字符串</param>
    /// <returns>编码后的宽字符串</returns>
    public static string WidthChartEncoding(string StrValue)
    {
        StringBuilder sb = new StringBuilder();
        foreach (char item in StrValue)
        {
            if (IsToWindthChart(item))  // 判断需要转换的字符
            {
                sb.Append(String.Format("\\u{0:x4}", (int)item));
            }
            else
            {
                sb.Append(item);
            }
        }
        return sb.ToString();
    }
    #endregion

    #region 宽字符解码
    /// <summary>
    /// 宽字符解码
    /// 1.后台才需要手动解码
    /// 2.js 控制的浏览器会自动解码宽字符
    /// </summary>
    /// <param name="WidthStr">宽字符串</param>
    /// <returns>一般能看懂的字符</returns>
    public static string WidthChartDecoding(string WidthStr)
    {
        StringBuilder sb = new StringBuilder();
        string[] _ValueList = WidthStr.Split(new char[] { '\\', 'u' }, StringSplitOptions.RemoveEmptyEntries);
        for (int i = 0; i != _ValueList.Length; i++)
        {
            char _ValueChar = Convert.ToChar(Convert.ToUInt16(_ValueList[i], 16));
            sb.Append(_ValueChar.ToString());
        }
        return sb.ToString();
    }
    #endregion

}