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select下拉框的上下左右移动,多行排序等,很好的代码。大家有用就看看吧。

2011-09-19 20:45 501 查看
<!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=gb2312">

<title>Select 排序,移动等</title>

<style>

.ecv_autoSizeDropDown

{

font-family : "Arial", "Helvetica", "sans-serif";

font-size : 12px;

font-style : normal;

color : #201B74;

background-color: #FFFFFF;

width:expression((this.offsetWidth>150)?'auto':'150');

}

</style>

</head>

<body >

<div style="font-size:10pt;">

注1:左右移动进行选取 <br/>

注2:已解决的问题 <br/>

----能进行多行排序<br/>

----解决排序时滚动条归零的问题<br/>

<br/>

<br/>

注:本页面仅在IE6/FireFox1.5下测试过。其它浏览器或其它版本未经测试。<br/>

原作者:JK:<a href="mailTo:jk_10000@yahoo.com.cn?subject=About%20MoveRightOrLeft">JK_10000@yahoo.com.cn</a><br/>

<hr/>

</div>

<form name=frm>

<table>

<tr >

<td>

<select name=SrcSelect size=6 class="ecv_autoSizeDropDown" style="height:160px;" multiple ondblclick="moveLeftOrRight(document.frm.SrcSelect,document.frm.ObjSelect)">

<option value="1">test1</option>

<option value="2">test2</option>

<option value="3">test3</option>

<option value="4">test4</option>

<option value="5">test5</option>

<option value="6">test6</option>

<option value="7">test7</option>

<option value="8">test8</option>

<option value="9">test9 abcde abcde abcde abcde abcde abcde abcde abcde </option>

</select>

</td>

<td width="30px">

<input align="left" type=button value=">>" onclick="moveLeftOrRightAll(document.frm.SrcSelect,document.frm.ObjSelect)" ><br><br>

<input align="left" type=button value=">" onclick="moveLeftOrRight(document.frm.SrcSelect,document.frm.ObjSelect)" ><br><br>

<input align="left" type=button value="<" onclick="moveLeftOrRight(document.frm.ObjSelect,document.frm.SrcSelect)" ><br><br>

<input align="left" type=button value="<<" onclick="moveLeftOrRightAll(document.frm.ObjSelect,document.frm.SrcSelect)" >

</td>

<td>

<select name=ObjSelect size=6 class="ecv_autoSizeDropDown" style="height:160px;" multiple ondblclick="moveLeftOrRight(document.frm.ObjSelect,document.frm.SrcSelect)">

<option value="11">test11</option>

<option value="12">test12</option>

<option value="13">test13</option>

<option value="14">test14</option>

<option value="15">test15</option>

<option value="16">test16</option>

</select>

</td>

<td width="30px">

<input type=button value="AA" onclick="moveToTop(document.frm.ObjSelect)" > <br><br>

<input type=button value="A" onclick="moveUp(document.frm.ObjSelect)" > <br><br>

<input type=button value="V" onclick="moveDown(document.frm.ObjSelect)" ><br><br>

<input type=button value="VV" onclick="moveToBottom(document.frm.ObjSelect)" >

</td>

</tr>

</table>

</form>

<script language=javascript>

function moveLeftOrRight(fromObj,toObj)

{

var fromObjOptions=fromObj.options;

for(var i=0;i<fromObjOptions.length;i++){

if(fromObjOptions[i].selected){

toObj.appendChild(fromObjOptions[i]);

i--;

}

}

resetAutoWidth(fromObj);

resetAutoWidth(toObj);

}

function moveLeftOrRightAll(fromObj,toObj)

{

var fromObjOptions=fromObj.options;

if(fromObjOptions.length>1000) {

//if(!confirm("Are you sure to move options?")) return false;

}

for(var i=0;i<fromObjOptions.length;i++){

fromObjOptions[0].selected=true;

toObj.appendChild(fromObjOptions[i]);

i--;

}

resetAutoWidth(fromObj);

resetAutoWidth(toObj);

}

function moveUp(selectObj)

{

var theObjOptions=selectObj.options;

for(var i=1;i<theObjOptions.length;i++) {

if( theObjOptions[i].selected && !theObjOptions[i-1].selected ) {

swapOptionProperties(theObjOptions[i],theObjOptions[i-1]);

}

}

}

function moveDown(selectObj)

{

var theObjOptions=selectObj.options;

for(var i=theObjOptions.length-2;i>-1;i--) {

if( theObjOptions[i].selected && !theObjOptions[i+1].selected ) {

swapOptionProperties(theObjOptions[i],theObjOptions[i+1]);

}

}

}

function moveToTop(selectObj){

var theObjOptions=selectObj.options;

var oOption=null;

for(var i=0;i<theObjOptions.length;i++) {

if( theObjOptions[i].selected && oOption) {

selectObj.insertBefore(theObjOptions[i],oOption);

}

else if(!oOption && !theObjOptions[i].selected) {

oOption=theObjOptions[i];

}

}

}

function moveToBottom(selectObj){

var theObjOptions=selectObj.options;

var oOption=null;

for(var i=theObjOptions.length-1;i>-1;i--) {

if( theObjOptions[i].selected ) {

if(oOption) {

oOption=selectObj.insertBefore(theObjOptions[i],oOption);

}

else oOption=selectObj.appendChild(theObjOptions[i]);

}

}

}

function selectAllOption(selectObj){

var theObjOptions=selectObj.options;

for(var i=0;i<theObjOptions.length;i++){

theObjOptions[0].selected=true;

}

}

/* private function */

function swapOptionProperties(option1,option2){

//option1.swapNode(option2);

var tempStr=option1.value;

option1.value=option2.value;

option2.value=tempStr;

tempStr=option1.text;

option1.text=option2.text;

option2.text=tempStr;

tempStr=option1.selected;

option1.selected=option2.selected;

option2.selected=tempStr;

}

function resetAutoWidth(obj){

var tempWidth=obj.style.getExpression("width");

if(tempWidth!=null) {

obj.style.width="auto";

obj.style.setExpression("width",tempWidth);

obj.style.width=null;

}

}

</script>

</body>

</html>
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