autocomplete.js可以实现自动输入文本值，并出现下拉框
js引用：所需要的autocomplete文件需要在网站中自行下载。
<!--自动输入文本值所需的jquery文件-->
<script src="../js/autocomplete/lib/jquery.js" type="text/javascript"></script>
<script src="../js/autocomplete/lib/jquery.bgiframe.min.js" type="text/javascript"></script>
<script src="../js/autocomplete/jquery.autocomplete.js" type="text/javascript"></script>
<link href="../js/autocomplete/jquery.autocomplete.css" rel="stylesheet" type="text/css" />
<script src="../js/autocomplete/lib/jquery.dimensions.js" type="text/javascript"></script>
Html语句：
<div>目的地：<asp:TextBox ID="TextBox_City" style="padding-left:5px;height:25px;width:550px;line-height:18px;font-size:12px;" runat="server"></asp:TextBox> </div>
js语句：可是实现多个的选择
<script language="javascript" type="text/javascript">
$(document).ready(function(){
$("#TextBox_City").autocomplete("../GoldenPalmInsurance/Code/CountryName.ashx",{
minChars: , //最少输入字条
max: ,
autoFill: false, //是否选多个,用","分开
mustMatch: false, //是否全匹配, 如数据中没有此数据,将无法输入
matchContains: true, //是否全文搜索,否则只是前面作为标准
width: ,
multiple: true,
scrollHeight: //提示高度，溢出时显示滚动条
});
});
</script>
CountryName.ashx文件中程序如下：
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "application/json";
//取得TextBox的文字
string q = context.Request.QueryString["q"] == null ? "" : context.Request.QueryString["q"].ToString();
if (!string.IsNullOrEmpty(q))
{
//LINQ查询
using (QuDataDataContext Qucontext=new QuDataDataContext())
{
var Query = from a in Qucontext.countryinfos
where a.cname.Contains(q) || a.ename.Contains(q)
orderby a.ename
select a.cname+'/'+a.ename;
string json = "申根/schengen state" + Environment.NewLine + string.Join(Environment.NewLine, Query.ToArray());
//將查詢結果輸出
context.Response.Write(json);
}
} }