📄 autocomplete.aspx

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<%@ Page Language="C#" AutoEventWireup="true" CodeFile="autocomplete.aspx.cs" Inherits="MyDemo.Auto.AutoComplete_Default" %>
<HTML>

<head>
<title >自动完成的文本框</title>
<link rel="stylesheet" type="text/css" href="../css/main.css"/>
<style>
body,div {
    font-family:verdana;
    line-height:100%;
    font-size:9pt;
}
input {
    width:300px;
}
h1 {
    text-align:center;
    font-size:2.2em;
}
#divf {
    margin:10px;
    font-size:0.8em;
    text-align:center;
}
#divc {
    border:1px solid #333333;
}
.des {
    width:500px;
    background-color:lightyellow;
    border:1px solid #333;
    padding:20px;
    margin-top:20px;
}
.mouseover {
    color:#ffffff;
    background-color:highlight;
    width:100%;
    cursor:default;
}
.mouseout {
    color:#000000;
    width:100%;
    background-color:#ffffff;
    cursor:default;
}
</style>


<script language=javascript>
function jsAuto(instanceName,objID)
{
    this._msg = [];
    this._x = null;
    this._o = document.getElementById( objID );
    if (!this._o) return;
    this._f = null;
    this._i = instanceName;
    this._r = null;
    this._c = 0;
    this._s = false;
    this._v = null;
    this._o.style.visibility = "hidden";
    this._o.style.position = "absolute";
    this._o.style.zIndex = "9999";
    return this;
};

jsAuto.prototype.directionKey=function() { with (this)
{
    var e = _e.keyCode ? _e.keyCode : _e.which;
    var l = _o.childNodes.length;
    (_c>l-1 || _c<0) ? _s=false : "";

    if( e==40 && _s )
    {
        _o.childNodes[_c].className="mouseout";
        (_c >= l-1) ? _c=0 : _c ++;
        _o.childNodes[_c].className="mouseover";
    }
    if( e==38 && _s )
    {
        _o.childNodes[_c].className="mouseout";
        _c--<=0 ? _c = _o.childNodes.length-1 : "";
        _o.childNodes[_c].className="mouseover";
    }
    if( e==13 )
    {
        if(_o.childNodes[_c] && _o.style.visibility=="visible")
        {
            _r.value = _x[_c];
            _o.style.visibility = "hidden";
        }
    }
    if( !_s )
    {
        _c = 0;
        _o.childNodes[_c].className="mouseover";
        _s = true;
    }
}};

// 鼠标事件.
jsAuto.prototype.domouseover=function(obj) { with (this)
{
    _o.childNodes[_c].className = "mouseout";
    _c = 0;
    obj.tagName=="DIV" ? obj.className="mouseover" : obj.parentElement.className="mouseover";
}};
jsAuto.prototype.domouseout=function(obj)
{
    obj.tagName=="DIV" ? obj.className="mouseout" : obj.parentElement.className="mouseout";
};
jsAuto.prototype.doclick=function(msg) { with (this)
{
    if(_r)
    {
        _r.value = msg;
        _o.style.visibility = "hidden";
    }
    else
    {
        alert("javascript autocomplete ERROR :\n\n can not get return object.");
        return;
    }
}};


jsAuto.prototype.item=function(msg)
{
    if( msg.indexOf(",")>0 )
    {
        var arrMsg=msg.split(",");
        for(var i=0; i<arrMsg.length; i++)
        {
            arrMsg[i] ? this._msg.push(arrMsg[i]) : "";
        }
    }
    else
    {
        this._msg.push(msg);
    }
    this._msg.sort();
};
jsAuto.prototype.append=function(msg) { with (this)
{
    _i ? "" : _i = eval(_i);
    _x.push(msg);
    var div = document.createElement("DIV");

    //把事件绑定到对象
    div.onmouseover = function(){_i.domouseover(this)};
    div.onmouseout = function(){_i.domouseout(this)};
    div.onclick = function(){_i.doclick(msg)};
    var re  = new RegExp("(" + _v + ")","i");
    div.style.lineHeight="140%";
    div.className = "mouseout";
    if (_v) div.innerHTML = msg.replace(re , "<strong>$1</strong>");
    div.style.fontFamily = "verdana";

    _o.appendChild(div);
}};
jsAuto.prototype.display=function() { with(this)
{
    if(_f&&_v!="")
    {
        _o.style.left = _r.offsetLeft;
        _o.style.width = _r.offsetWidth;
        _o.style.top = _r.offsetTop + _r.offsetHeight;
        _o.style.visibility = "visible";
    }
    else
    {
        _o.style.visibility="hidden";
    }
}};
jsAuto.prototype.handleEvent=function(fValue,fID,event) { with (this)
{
    var re;
    _e = event;
    var e = _e.keyCode ? _e.keyCode : _e.which;
    _x = [];
    _f = false;
    _r = document.getElementById( fID );
    _v = fValue;
    _i = eval(_i);
    re = new RegExp("^" + fValue + "", "i");
    _o.innerHTML="";

    for(var i=0; i<_msg.length; i++)
    {
        if(re.test(_msg[i]))
        {
            _i.append(_msg[i]);
            _f = true;
        }
    }

    _i ? _i.display() : alert("不能获得instance");

    if(_f)
    {
        if((e==38 || e==40 || e==13))
        {
            _i.directionKey();
        }
        else
        {
            _c=0;
            _o.childNodes[_c].className = "mouseover";
            _s=true;
        }
    }
}};
window.onerror=new Function("return true;");
//-->
</script>

</head>
<body>

<form id=form1 runat=server>
<div class=content>
<h1>自动补齐</h1>
<br>
可以输入：“我”，“你”，“他”，“我是”测试
<br>
<div id="divc">
    <!--这是提示列表的容器，提示的文字将在这个div显示-->
</div>

<div align="center">
<input onkeyup="jsAutoInstance.handleEvent(this.value,'auto',event)" id="auto">
</div>
<div id="divf">
    
</div>


</div>
</form>

<script type="text/javascript" defer="defer">

    
var jsAutoInstance = new jsAuto("jsAutoInstance","divc");
jsAutoInstance.item(MyDemo.Auto.AutoComplete_Default.GetData().value.join(','));

//-->
</SCRIPT>
</body>

</HTML>
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