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js select多選列表傳值代碼

更新時(shí)間：2009年12月06日 16:49:12 作者：

select多選列表傳值，主要是讀取選中的值，然后傳遞到對(duì)面的select中，每個(gè)功能都是獨(dú)立的代碼。

<html> <head> <title>js select</title>  </head> <body> <form name="form1" method="post" action=""> <table border="0" align="center" width="75%" cellspacing="0" cellpadding="0"> <tr> <td> <table border="0" align="center"> <tr> <td> <select name="leftItem" style="width:200px" size="10" multiple="multiple"> <option value="1">item1</option> <option value="2">item2</option> <option value="3">item3</option> <option value="4">item4</option> <option value="5">item5</option> </select> </td> </tr> </table> </td> <td> <table border="0" align="center"> <tr><td height="30"><input type="button" name="button1" style="width:50px" value="&gt;" onClick="fMoveSelectedOptionsLeftToRight(document.all.leftItem,document.all.rightItem)"></td></tr> <tr><td height="30"><input type="button" name="button2" style="width:50px" value="&gt;&gt;" onClick="fMoveAllOptionsLeftToRight(document.all.leftItem,document.all.rightItem)"></td></tr> <tr><td height="30"><input type="button" name="button3" style="width:50px" value="&lt;" onClick="fMoveSelectedOptionsRightToLeft(document.all.leftItem,document.all.rightItem)"></td></tr> <tr><td height="30"><input type="button" name="button4" style="width:50px" value="&lt;&lt;" onClick="fMoveAllOptionsRightToLeft(document.all.leftItem,document.all.rightItem)"></td></tr> </table> </td> <td> <table border="0" align="center"> <tr> <td> <select name="rightItem" style="width:200px" size="10" multiple="multiple"> </select> </td> </tr> </table> </td> </tr> </table> <table border="0" align="center"> <tr height="40"> <td><input type="button" value="保存" onClick="checkForm()"></td> </tr> </table> </form> </body> </html>

[Ctrl+A 全選注:引入外部Js需再刷新一下頁面才能執(zhí)行]

js核心代碼

復(fù)制代碼代碼如下:

/*移除左邊選中的列表項(xiàng)到右邊*/ 
function fMoveSelectedOptionsLeftToRight(oLeft,oRight) 
{ 
if(!(oLeft&&oRight)) 
{ 
return; 
} 
if(!hasOptions(oLeft)) 
{ 
return; 
} 
if(oLeft.selectedIndex==-1) 
{ 
oLeft.selectedIndex=0; 
} 
for(var i=0;i<oLeft.options.length;i++) 
{ 
if(oLeft.options[i].selected) 
{ 
var oOption = document.createElement("OPTION"); 
oOption.setAttribute("text",oLeft.options[i].text); 
oOption.setAttribute("value",oLeft.options[i].value); 
oRight.add(oOption); 
} 
} 
clearSelectedOptions(oLeft); 
} 
/*移除左邊的所有列表項(xiàng)到右邊*/ 
function fMoveAllOptionsLeftToRight(oLeft,oRight) 
{ 
if(!(oLeft&&oRight)) 
{ 
return; 
} 
if(!hasOptions(oLeft)) 
{ 
return; 
} 
for(var i=0;i<oLeft.options.length;i++) 
{ 
var oOption = document.createElement("OPTION"); 
oOption.setAttribute("text",oLeft.options[i].text); 
oOption.setAttribute("value",oLeft.options[i].value); 
oRight.add(oOption); 
} 
clearAllOptions(oLeft); 
} 
/*移除右邊選中的列表項(xiàng)到左邊*/ 
function fMoveSelectedOptionsRightToLeft(oLeft,oRight) 
{ 
if(!(oLeft&&oRight)) 
{ 
return; 
} 
if(!hasOptions(oRight)) 
{ 
return; 
} 
if(oRight.selectedIndex==-1) 
{ 
oRight.selectedIndex=0; 
} 
for(var i=0;i<oRight.options.length;i++) 
{ 
if(oRight.options[i].selected) 
{ 
var oOption = document.createElement("OPTION"); 
oOption.setAttribute("text",oRight.options[i].text); 
oOption.setAttribute("value",oRight.options[i].value); 
oLeft.add(oOption); 
} 
} 
clearSelectedOptions(oRight); 
} 
/*移除右邊的所有列表項(xiàng)到左邊*/ 
function fMoveAllOptionsRightToLeft(oLeft,oRight) 
{ 
if(!(oLeft&&oRight)) 
{ 
return; 
} 
if(!hasOptions(oRight)) 
{ 
return; 
} 
for(var i=0;i<oRight.options.length;i++) 
{ 
var oOption = document.createElement("OPTION"); 
oOption.setAttribute("text",oRight.options[i].text); 
oOption.setAttribute("value",oRight.options[i].value); 
oLeft.add(oOption); 
} 
clearAllOptions(oRight); 
} 
/*清空select所有options*/ 
function clearAllOptions(oSelect) 
{ 
if(oSelect) 
{ 
var ops=oSelect.options; 
while(ops.length>0) 
{ 
oSelect.remove(ops.length-1); 
} 
} 
} 
/*清空select所有選中的options*/ 
function clearSelectedOptions(oSelect) 
{ 
if(oSelect) 
{ 
for(var i=0;i<oSelect.options.length;i++) 
{ 
if(oSelect.options[i].selected) 
{ 
oSelect.remove(i--); 
} 
} 
} 
} 
/*判斷select是否有options*/ 
function hasOptions(oSelect) 
{ 
if(oSelect) 
{ 
return oSelect.options.length>0; 
} 
return false; 
} 