selectutil html
转载自：
http://wallimn.iteye.com/blog/475499
Html代码
- <!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>
- <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
- <title>listbox控制测试</title>
- <script type="text/javascript">
- function SelectUtil(idOrObj){
- if(typeof(idOrObj)=="string"){
- this.selectObj=document.getElementById(idOrObj);
- }
- else if (idOrObj!=null && typeof(idOrObj)=="object" && idOrObj.tagName=="SELECT"){
- this.selectObj=idOrObj;
- }
- else{
- alert("创建对象失败，参数不合法！");
- }
- }
- SelectUtil.prototype.isExist=function(itemValue){
- var isExist = false;
- for(var i=0; i<this.selectObj.options.length; i++){
- if(this.selectObj.options[i].value==itemValue){
- isExist=true;
- break;
- }
- }
- return isExist;
- }
- SelectUtil.prototype.addItem=function(itemText,itemValue){
- if(!itemText || !itemValue || typeof(itemText)!="string" ||typeof(itemValue)!="string" )return false;
- if(this.isExist(itemValue)){
- //alert("项目已存在！");
- return false;
- }
- var optionItem = new Option(itemText,itemValue);
- this.selectObj.options.add(optionItem);
- return true;
- }
- SelectUtil.prototype.delItem=function(itemValue){
- var bDel=false;
- for(var i=0; i<this.selectObj.options.length; i++){
- if(this.selectObj.options[i].value==itemValue){
- bDel=true;
- this.selectObj.options.remove(i);
- break;
- }
- }
- return bDel;
- }
- SelectUtil.prototype.delSelectedItem=function(){
- var length = this.selectObj.options.length-1;
- var num = 0;
- for(var i=length; i>=0; i--){
- if(this.selectObj.options[i].selected==true){
- this.selectObj.options[i] = null;
- num++;
- }
- }
- return num;
- }
- SelectUtil.prototype.cloneItem = function (itemValue){
- var result=null;
- for(var i=0; i<this.selectObj.options.length; i++){
- if(this.selectObj.options[i].value==itemValue){
- result=this.selectObj.options[i];
- break;
- }
- }
- if(result==null)return null;
- return new Option(result.text,result.value);
- }
- SelectUtil.prototype.getItem = function (itemValue){
- var result=null;
- for(var i=0; i<this.selectObj.options.length; i++){
- if(this.selectObj.options[i].value==itemValue){
- result=this.selectObj.options[i];
- break;
- }
- }
- return result;
- }
- SelectUtil.prototype.modItemText=function(itemText,itemValue){
- var opt=this.getItem(itemValue);
- if(opt==null){
- alert("没有找到指定的项目！");
- return false;
- }
- else{
- opt.text = itemText;
- return true;
- }
- }
- SelectUtil.prototype.selItemByValue=function(itemValue){
- var opt = this.getItem(itemValue);
- if(opt!=null){
- opt.selected=true;
- return true;
- }
- else{
- return false;
- }
- }
- SelectUtil.prototype.clear=function(){
- this.selectObj.options.length=0;
- }
- SelectUtil.prototype.selectedIndex=function(){
- return this.selectObj.selectedIndex;
- }
- SelectUtil.prototype.seletedText=function(){
- return this.selectObj.text;
- }
- SelectUtil.prototype.getSelectedItem=function(){
- var idx = this.selectObj.selectedIndex;
- if(idx==-1)return null;
- else{
- return this.selectObj.options[idx];
- }
- }
- SelectUtil.prototype.adjustItem=function(optionObj,direction){
- if(!optionObj){
- optionObj = this.getSelectedItem();
- }
- if(!optionObj)return false;
- var delta = (direction=="down")?1:-1;
- if(optionObj.index+delta<0 || optionObj.index+delta>=this.selectObj.options.length)return true;
- else{
- var opt,tmp;
- opt = this.selectObj.options[optionObj.index+delta];
- tmp = opt.value;
- opt.value=optionObj.value;
- optionObj.value = tmp;
- tmp = opt.text;
- opt.text=optionObj.text;
- optionObj.text = tmp;
- opt.selected=true;
- optionObj.selected=false;
- return true;
- }
- }
- SelectUtil.prototype.getAllItem=function(){
- return this.selectObj.options;
- }
- SelectUtil.prototype.getItemCount=function(){
- return this.selectObj.options.length;
- }
- SelectUtil.prototype.moveSelectedItemTo=function(anotherSelectObj){
- if(!anotherSelectObj)return false;
- var length = this.selectObj.options.length-1;
- var num = 0,opt;
- for(var i=length; i>=0; i--){
- if(this.selectObj.options[i].selected==true){
- num++;
- opt = this.selectObj.options[i];
- //没有验证有无重复
- anotherSelectObj.options.add(new Option(opt.text,opt.value));
- this.selectObj.options[i] = null;
- }
- }
- return num;
- }
- SelectUtil.prototype.moveAllItemTo=function(anotherSelectObj,bCreate){
- if(!anotherSelectObj)return false;
- var length = this.selectObj.options.length-1;
- var num = 0,opt=null;
- for(var i=length; i>=0; i--){
- num++;
- opt = this.selectObj.options[i];
- //没有验证有无重复
- anotherSelectObj.options.add(new Option(opt.text,opt.value));
- this.selectObj.options[i] = null;
- }
- return num;
- }
- SelectUtil.prototype.getObject=function(){
- return this.selectObj;
- }
- SelectUtil.prototype.selectAll=function(){
- for(var i=0; i<this.selectObj.options.length; i++){
- this.selectObj.options[i].selected=true;
- }
- }
- </script>
- <style type="text/css">
- #srclb,#dstlb{
- border:1px solid #aaa;
- width:200px;
- height:400px;
- }
- .zhcxbtn{
- width:30px;
- }
- </style>
- </head>
- <body>
- <div>
- <table width="460" border="0" class="zhcx" cellpadding="0" cellspacing="0">
- <tr>
- <td>
- <select multiple="multiple" name="srclb" id="srclb" ondblclick="srclb.moveSelectedItemTo(dstlb.getObject());">
- <option value="1">宝马1</option>
- <option value="2">宝马2</option>
- <option value="3">宝马3</option>
- <option value="4">宝马4</option>
- <option value="5">宝马5</option>
- <option value="6">宝马6</option>
- <option value="7">宝马7</option>
- </select>
- </td>
- <td>
- <input type="button" class="zhcxbtn" value=">" onclick="srclb.moveSelectedItemTo(dstlb.getObject());"/>
- <input type="button" class="zhcxbtn" value=">>" onclick="srclb.moveAllItemTo(dstlb.getObject());"/>
- <input type="button" class="zhcxbtn" value="<" onclick="dstlb.moveSelectedItemTo(srclb.getObject());"/>
- <input type="button" class="zhcxbtn" value="<<" onclick="dstlb.moveAllItemTo(srclb.getObject());"/>
- </td>
- <td>
- <select multiple="multiple" name="dstlb" id="dstlb" ondblclick="dstlb.adjustItem();">
- </select>
- </td>
- <td>
- <input type="button" class="zhcxbtn" value="↑" onclick="dstlb.adjustItem();"/>
- <input type="button" class="zhcxbtn" value="↓" onclick="dstlb.adjustItem(null,'down');"/>
- </td>
- </tr>
- </table>
- </div>
- <input type="button" value="全选" onclick="dstlb.selectAll();"/>
- <script type="text/javascript">
- var dstlb = new SelectUtil("dstlb");
- var srclb = new SelectUtil("srclb");
- </script>
- </body>
- </html>
<!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>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>listbox控制测试</title>
<script type="text/javascript">
function SelectUtil(idOrObj){
if(typeof(idOrObj)=="string"){
this.selectObj=document.getElementById(idOrObj);
}
else if (idOrObj!=null && typeof(idOrObj)=="object" && idOrObj.tagName=="SELECT"){
this.selectObj=idOrObj;
}
else{
alert("创建对象失败，参数不合法！");
}
}
SelectUtil.prototype.isExist=function(itemValue){
var isExist = false;
for(var i=0; i<this.selectObj.options.length; i++){
if(this.selectObj.options[i].value==itemValue){
isExist=true;
break;
}
}
return isExist;
}
SelectUtil.prototype.addItem=function(itemText,itemValue){
if(!itemText || !itemValue || typeof(itemText)!="string" ||typeof(itemValue)!="string" )return false;
if(this.isExist(itemValue)){
//alert("项目已存在！");
return false;
}
var optionItem = new Option(itemText,itemValue);
this.selectObj.options.add(optionItem);
return true;
}
SelectUtil.prototype.delItem=function(itemValue){
var bDel=false;
for(var i=0; i<this.selectObj.options.length; i++){
if(this.selectObj.options[i].value==itemValue){
bDel=true;
this.selectObj.options.remove(i);
break;
}
}
return bDel;
}
SelectUtil.prototype.delSelectedItem=function(){
var length = this.selectObj.options.length-1;
var num = 0;
for(var i=length; i>=0; i--){
if(this.selectObj.options[i].selected==true){
this.selectObj.options[i] = null;
num++;
}
}
return num;
}
SelectUtil.prototype.cloneItem = function (itemValue){
var result=null;
for(var i=0; i<this.selectObj.options.length; i++){
if(this.selectObj.options[i].value==itemValue){
result=this.selectObj.options[i];
break;
}
}
if(result==null)return null;
return new Option(result.text,result.value);
}
SelectUtil.prototype.getItem = function (itemValue){
var result=null;
for(var i=0; i<this.selectObj.options.length; i++){
if(this.selectObj.options[i].value==itemValue){
result=this.selectObj.options[i];
break;
}
}
return result;
}
SelectUtil.prototype.modItemText=function(itemText,itemValue){
var opt=this.getItem(itemValue);
if(opt==null){
alert("没有找到指定的项目！");
return false;
}
else{
opt.text = itemText;
return true;
}
}
SelectUtil.prototype.selItemByValue=function(itemValue){
var opt = this.getItem(itemValue);
if(opt!=null){
opt.selected=true;
return true;
}
else{
return false;
}
}
SelectUtil.prototype.clear=function(){
this.selectObj.options.length=0;
}
SelectUtil.prototype.selectedIndex=function(){
return this.selectObj.selectedIndex;
}
SelectUtil.prototype.seletedText=function(){
return this.selectObj.text;
}
SelectUtil.prototype.getSelectedItem=function(){
var idx = this.selectObj.selectedIndex;
if(idx==-1)return null;
else{
return this.selectObj.options[idx];
}
}
SelectUtil.prototype.adjustItem=function(optionObj,direction){
if(!optionObj){
optionObj = this.getSelectedItem();
}
if(!optionObj)return false;
var delta = (direction=="down")?1:-1;
if(optionObj.index+delta<0 || optionObj.index+delta>=this.selectObj.options.length)return true;
else{
var opt,tmp;
opt = this.selectObj.options[optionObj.index+delta];
tmp = opt.value;
opt.value=optionObj.value;
optionObj.value = tmp;
tmp = opt.text;
opt.text=optionObj.text;
optionObj.text = tmp;
opt.selected=true;
optionObj.selected=false;
return true;
}
}
SelectUtil.prototype.getAllItem=function(){
return this.selectObj.options;
}
SelectUtil.prototype.getItemCount=function(){
return this.selectObj.options.length;
}
SelectUtil.prototype.moveSelectedItemTo=function(anotherSelectObj){
if(!anotherSelectObj)return false;
var length = this.selectObj.options.length-1;
var num = 0,opt;
for(var i=length; i>=0; i--){
if(this.selectObj.options[i].selected==true){
num++;
opt = this.selectObj.options[i];
//没有验证有无重复
anotherSelectObj.options.add(new Option(opt.text,opt.value));
this.selectObj.options[i] = null;
}
}
return num;
}
SelectUtil.prototype.moveAllItemTo=function(anotherSelectObj,bCreate){
if(!anotherSelectObj)return false;
var length = this.selectObj.options.length-1;
var num = 0,opt=null;
for(var i=length; i>=0; i--){
num++;
opt = this.selectObj.options[i];
//没有验证有无重复
anotherSelectObj.options.add(new Option(opt.text,opt.value));
this.selectObj.options[i] = null;
}
return num;
}
SelectUtil.prototype.getObject=function(){
return this.selectObj;
}
SelectUtil.prototype.selectAll=function(){
for(var i=0; i<this.selectObj.options.length; i++){
this.selectObj.options[i].selected=true;
}
}
</script>
<style type="text/css">
#srclb,#dstlb{
border:1px solid #aaa;
width:200px;
height:400px;
}
.zhcxbtn{
width:30px;
}
</style>
</head>
<body>
<div>
<table width="460" border="0" class="zhcx" cellpadding="0" cellspacing="0">
<tr>
<td>
<select multiple="multiple" name="srclb" id="srclb" ondblclick="srclb.moveSelectedItemTo(dstlb.getObject());">
<option value="1">宝马1</option>
<option value="2">宝马2</option>
<option value="3">宝马3</option>
<option value="4">宝马4</option>
<option value="5">宝马5</option>
<option value="6">宝马6</option>
<option value="7">宝马7</option>
</select>
</td>
<td>
<input type="button" class="zhcxbtn" value=">" onclick="srclb.moveSelectedItemTo(dstlb.getObject());"/>
<input type="button" class="zhcxbtn" value=">>" onclick="srclb.moveAllItemTo(dstlb.getObject());"/>
<input type="button" class="zhcxbtn" value="<" onclick="dstlb.moveSelectedItemTo(srclb.getObject());"/>
<input type="button" class="zhcxbtn" value="<<" onclick="dstlb.moveAllItemTo(srclb.getObject());"/>
</td>
<td>
<select multiple="multiple" name="dstlb" id="dstlb" ondblclick="dstlb.adjustItem();">
</select>
</td>
<td>
<input type="button" class="zhcxbtn" value="↑" onclick="dstlb.adjustItem();"/>
<input type="button" class="zhcxbtn" value="↓" onclick="dstlb.adjustItem(null,'down');"/>
</td>
</tr>
</table>
</div>
<input type="button" value="全选" onclick="dstlb.selectAll();"/>
<script type="text/javascript">
var dstlb = new SelectUtil("dstlb");
var srclb = new SelectUtil("srclb");
</script>
</body>
</html>