JS DIV模擬SELECT表單域_ASP教程

2024-07-21 02:04:49

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官方參考手冊,權威技術手冊下載電子圖書教程分類以下虛線框內為mk.asp文件的具體代碼：--------------------------------------------------------------------------------

最近在做一個AJAX項目，其中用到很多滿屏層的模擬屏幕鎖定，但有個很頭痛的東西，就是下拉列表框始終會顯示在層的上面，為了解決這個問題才寫了這個JS類，個人感覺還好用，在這和大家分享下，有好的意見也請提出！

效果預覽：

程序代碼：

以下為引用的內容：
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>JS DIV模擬SELECT表單元素</title>
<script language="Javascript">
selOptions = {
name : "selOptions",//此處為數組的名稱
data : new Array()
}
selOptions.data[0] = new Array("0","option0")
selOptions.data[1] = new Array("1","option1")
selOptions.data[2] = new Array("2","option2")
selOptions.data[3] = new Array("3","option3")
selOptions.data[4] = new Array("4","option4")
selOptions.data[5] = new Array("5","option5")
selOptions.data[6] = new Array("6","option6")
selOptions.data[7] = new Array("7","option7")
selOptions.data[8] = new Array("8","option8")
selOptions.data[9] = new Array("9","option9")
selOptions.data[10] = new Array("10","option10")
selOptions.data[11] = new Array("11","option11")
selOptions.data[12] = new Array("12","option12")
selOptions.data[13] = new Array("13","option13")
selOptions.data[14] = new Array("14","option14")
selOptions.data[15] = new Array("15","option15")
tmhSelect = {
//主調函數
//參數含義：容器，名稱，數據[數組]，默認項，寬度，動作(目標函數不能帶參)
show : function(obj,selectName,dataObj,selOption,width,action){
var data = dataObj.data;
var _Obj = document.getElementById(obj);
if(!_Obj || typeof(_Obj) == "undefined"){return false;}
var s1 = document.createElement("div");
if(isNaN(width) || width==""){width=150;}else if(width<26){width=26;}
s1.style.width = width;
s1.onmouseleave = function(){tmhSelect.hidden(selectName)};
var str = "";
//判斷是否有數據
if(data.length > 0){
//有數據時顯示數據選項列表
str = "<input type=’hidden’ name=’" selectName "’ id=’" selectName "’ value=’" tmhSelect.relv(selOption,data) "’>";
str = "<div id=’_a_" selectName "’ style=’width:" width "px;height:18px; border:1px #666666 solid;’>";
str = "<div id=’_v_" selectName "’ style=’position:relative;float:left;left:2px;width:" (width-22) "px;height:18px;font-size:12px;overflow:hidden;line-height:18px;’ onclick=/"tmhSelect.showOptions(’" selectName "’);/">" tmhSelect.reStr(data,selOption) "</div>";
str = "<div style=’position:relative;float:right;right:0px;width:18px;height:18px;text-align:center;font-family:Webdings;font-size:16px;overflow:hidden;background-color:#CCCCCC;cursor:pointer!important;cursor:hand;’ onclick=/"tmhSelect.showOptions(’" selectName "’);/">6</div>";
str = "</div>";
str = "<div id=’_b_" selectName "’ style=’position:absolute; background-color:#FFFFFF; width:" width "px; height:" tmhSelect.height(data.length) "px;border:1px #666666 solid;overflow-x:hidden;overflow-y:auto;display:none; z-index:99999;’>";
for(i=0;i<data.length;i ){
str = "<div id=’_s_" selectName "’ style=’" tmhSelect.style(1,data[i][0],selOption) "’ onmouseover=/"tmhSelect.css(2,this,’" data[i][0] "’,’" selectName "’)/" onmouseout=/"tmhSelect.css(1,this,’" data[i][0] "’,’" selectName "’)/" onclick=/"tmhSelect.selected(this,’" data[i][0] "’," dataObj.name ",’" action "’)/">" data[i][1] "</div>";
}
str = "</div>";
}else{
//沒有數據時顯示一個空窗體
str = "<input type=’hidden’ name=’" selectName "’ id=’" selectName "’ value=’" selOption "’>";
str = "<div id=’_a_" selectName "’ style=’width:" width "px;height:18px; border:1px #666666 solid;’>";
str = "<div id=’_v_" selectName "’ style=’position:relative;float:left;left:2px;width:" (width-22) "px;height:18px;font-size:12px;overflow:hidden;line-height:18px;’ onclick=/"tmhSelect.showOptions(’" selectName "’);/"></div>";
str = "<div style=’position:relative;float:right;right:0px;width:18px;height:18px;text-align:center;font-family:Webdings;font-size:16px;overflow:hidden;background-color:#CCCCCC;cursor:pointer!important;cursor:hand;’ onclick=/"tmhSelect.showOptions(’" selectName "’);/">6</div>";
str = "</div>";
str = "<div id=’_b_" selectName "’ style=’position:absolute; background-color:#FFFFFF; width:" width "px; height:" tmhSelect.height(0) "px;border:1px #666666 solid;overflow-x:hidden;overflow-y:auto;display:none; z-index:99999;’></div>";
}
s1.innerHTML = str;
_Obj.appendChild(s1);
},
//返回選定項的值
value : function(n){return document.getElementById(n).value;},
//返回選定項的文本
text : function(n){return document.getElementById("_v_" n).innerText;},
selected : function(o,v,dn,action){
var d = dn.data;
var n = o.id.replace(/(_s_)/gi,"")
document.getElementById(n).value = v;
document.getElementById("_v_" n).innerHTML = tmhSelect.reStr(d,v);
tmhSelect.showOptions(n)
for(var i=0;i<document.getElementById("_b_" n).childNodes.length;i ){
document.getElementById("_b_" n).childNodes[i].style.cssText = tmhSelect.style(1)
}
o.style.cssText = tmhSelect.style(2);
if(action!="" && action != null){
try{eval(action)}catch(e){}
}
},
relv : function(v,d){
for(i=0;i<d.length;i ){
if(d[i][0] == v){
return v;
}
}
if(v == null || v == ""){
return d[0][0];
}
},
reStr : function(d,m){
for(i=0;i<d.length;i ){
if(d[i][0] == m){
return d[i][1];
}
}
if(m == null || m == ""){
return d[0][1];
}
},
height : function(l){var h;if(l>10 || l<1)h = 10 * 15; else h = l * 15; h = 2;return h;},
showOptions : function(n){
var o = document.getElementById("_b_" n)
if(o.style.display == "none")
o.style.display ="";
else
o.style.display ="none";
_selectOptionsElm = o;
},
hidden : function(n){
document.getElementById("_b_" n).style.display ="none";
},
style : function(m,v1,v2){
var cs = "";
if(v1 == v2 && v1!="" && v1!=null){m=2;}
switch(m){
case 1:
cs = "height:15px; font-size:12px; line-height:15px; overflow:hidden; background-color:#FFFFFF; color:#000000; font-weight:normal;";
break;
case 2:
cs = "height:15px; font-size:12px; line-height:15px; overflow:hidden; background-color:#315DAD; color:#FFFFFF; font-weight:bold;";
break;
}
return cs;
},
css : function(s,obj,v,n){
var v1 = document.getElementById(n).value;
if(v == v1){
obj.style.cssText = tmhSelect.style(2);
return;
}else{
obj.style.cssText = tmhSelect.style(s)
}
}
}
function test(){
alert(tmhSelect.value(’test’));
}
</script>
</head>
<body>
<div id="testdiv"></div><BR />
<input type="button" name="button" value="查看文本" onclick="alert(tmhSelect.text(’test’))" />
<input type="button" name="button" value="查看選項值" onclick="alert(tmhSelect.value(’test’))" />
<script language="Javascript">
tmhSelect.show("testdiv","test",selOptions,"",160,"test()");
</script>
</body>
</html>

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