取汉字首字母（完全示例demo下载）
新建一般处理程序
ajax.ashx
<%@ WebHandler Language="C#" Class="ajax" %>
using System;
using System.Web;
public class ajax : IHttpHandler {
public void ProcessRequest (HttpContext context) {
context.Response.ContentType = "text/plain";
if (!string.IsNullOrEmpty(context.Request.QueryString["key"]))
{
context.Response.Write(GetPYString(context.Request.QueryString["key"]));
}
}
/// <summary>
/// /// 取单个字符的拼音声母/// Code By [email protected]
/// /// 2004-11-30/// </summary>/// <param name="c">要转换的单个汉字</param>
/// /// <returns>拼音声母</returns>
public static string GetPYChar(string c)
{
byte[] array = new byte[2];
array = System.Text.Encoding.Default.GetBytes(c);
int i = (short)(array[0] - '\0') * 256 + ((short)(array[1] - '\0'));
if (i < 0xB0A1) return "*";
if (i < 0xB0C5) return "a";
if (i < 0xB2C1) return "b";
if (i < 0xB4EE) return "c";
if (i < 0xB6EA) return "d";
if (i < 0xB7A2) return "e";
if (i < 0xB8C1) return "f";
if (i < 0xB9FE) return "g";
if (i < 0xBBF7) return "h";
if (i < 0xBFA6) return "j";
if (i < 0xC0AC) return "k";
if (i < 0xC2E8) return "l";
if (i < 0xC4C3) return "m";
if (i < 0xC5B6) return "n";
if (i < 0xC5BE) return "o";
if (i < 0xC6DA) return "p";
if (i < 0xC8BB) return "q";
if (i < 0xC8F6) return "r";
if (i < 0xCBFA) return "s";
if (i < 0xCDDA) return "t";
if (i < 0xCEF4) return "w";
if (i < 0xD1B9) return "x";
if (i < 0xD4D1) return "y";
if (i < 0xD7FA) return "z";
return "*";
}
/// <summary>
/// 汉字转拼音缩写（调用这个）
/// /// Code By [email protected]
/// /// 2004-11-30/// </summary>/// <param name="str">要转换的汉字字符串</param>
/// /// <returns>拼音缩写</returns>
public static string GetPYString(string str)
{
string tempStr = "";
foreach (char c in str)
{
if ((int)c >= 33 && (int)c <= 126)
{//字母和符号原样保留
tempStr += c.ToString();
}
else
{//累加拼音声母
tempStr += GetPYChar(c.ToString());
}
}
return tempStr;
}
public bool IsReusable {
get {
return false;
}
}
}
新建 Default.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script language="javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js"></script>
<script language="javascript" type="text/javascript">
// <!CDATA[
function getPY() {
$.ajax({
type: "get",
url: "ajax.ashx",
data: { key: $('#TextBox1').val() },
cache: false,
async: true,
success: function(html) {
$("#TextBox2").val("");
$("#TextBox2").val(html);
}
});
}
// ]]>
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="TextBox1" runat="server" onkeyup="getPY();"></asp:TextBox>
<br />
<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
<br />
</div>
</form>
</body>
</html>
两个页面搞定！！