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Use javascript to select both the left and right sides of ListBox. Select one or more options.

Source: Internet
Author: User
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Copy codeThe Code is as follows:
<Html>
<Head>
<Meta http-equiv = "Content-Type" content = "text/html; charset = gb2312">
<Title> list Test </title>
</Head>
<Body>
<Div style = "font-size: 10pt;">
Note 1: Move left and right to select
<Br/>
<Br/>
Note: This page has only been tested in IE6/FireFox1.5. Other browsers or other versions are not tested.
<Br/>
<Hr/>
</Div>
<Form name = "frm">
<Table>
<Tr>
<Td>
<Select name = "SrcSelect" size = "6" style = "font-size: 11pt; width: 160px; height: 160px"
Multiple = "multiple" ondblclick = "moveLeftOrRight (document. frm. SrcSelect, document. frm. ObjSelect)">
<Option value = "1"> instructor </option>
</Select>
</Td>
<Td width = "30px">
<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)">
</Td>
<Td>
<Select name = "ObjSelect" size = "6" style = "font-size: 11pt; width: 160px; height: 160px"
Multiple = "multiple" ondblclick = "moveLeftOrRight (document. frm. ObjSelect, document. frm. SrcSelect)">
<Option value = "2"> teaching administrator </option>
<Option value = "3"> super administrator </option>
</Select>
</Td>
</Tr>
</Table>
</Form>
</Body>
<Script type = "text/javascript" language = "javascript">
// Move up
Function moveUp (){
Var theObjOptions = document. frm. ObjSelect. options;
For (var I = 1; I <theObjOptions. length; I ++ ){
If (theObjOptions [I]. selected &&! TheObjOptions [I-1]. selected ){
SwapOptionProperties (theObjOptions [I], theObjOptions [I-1]);
}
}
}


// Move down
Function moveDown (){
Var theObjOptions = document. frm. ObjSelect. 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 swapOptionProperties (option1, option2 ){
Var tempStr = option1.value;
Option1.value = option2.value;
Option1.value = tempStr;
TempStr = option1.text;
Option1.text = option2.text;
Option2.text = tempStr;
TempStr = option1.selected;
Option1.selected = option2.selected;
Option2.selected = tempStr;
}


// Move the position of the list box
Function moveLeftOrRight (fromObj, toObj ){
For (var I = 0; I <fromObj. length; I ++ ){
Var srcOption = fromObj. options [I];
If (srcOption. selected ){
ToObj. appendChild (srcOption );
I --;
}
}
}
</Script>

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
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