请问,我写了一个select复写匡,可是在传递给下个serlet的时候,老得不到列表的值,求大虾解决 还有 就是 当我在选定的destList里面用鼠标选取了某个选项后,在提交页面,destList就能传过去。 也就是说,我从srcList选道destList后,在destList用鼠标点上,提交的话就能传到serlet,请问能不能实现不用鼠标点上,也能把destList里所有的东西都传递过去 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 <form action=""> <table width="200"> <tr> <td align="left" height="25" width="40%"><select multiple name="srcList" size=5> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> <option value="4">4</option> </select></td> <td align="center" height="25" width="20%"><br /> <input type="button" name="Submit" value=">" onclick="moveSelected(this.form.srcList, this.form.destList)"/> <br /> <input type="button" name="Submit2" value="<" onclick="moveSelected( this.form.destList, this.form.srcList)"/> </td> <td align="left" height="25" width="40%"><select multiple name="destList" size=5 selected> </select> </td> </tr> </table></form><SCRIPT LANGUAGE="JavaScript"><!--/** * move options from a select to another select * @param object targetSelect as html element select * @param object targetSelect as html element select * @version build 20051018 * @author [email protected] */function moveSelected(sourceSelect, targetSelect){ var cachOptionsArray = new Array(); var index = 0; for (var i = sourceSelect.options.length - 1; i >= 0; i--){ if (sourceSelect.options[i].selected){ cachOptionsArray[index] = new Option(sourceSelect.options[i].text, sourceSelect.options[i].value); sourceSelect.options[i] = null; index++; } } var exist = false; for (var i = cachOptionsArray.length - 1; i >= 0; i--){ exist = false; for (var j = 0; j < targetSelect.options.length; j++){ if (targetSelect.options[j].value.toString() == cachOptionsArray[i].value.toString()){ //alert("“" + cachOptionsArray[i].text + "”已经存在了!"); //sourceSelect.options[sourceSelect.options.length] = cachOptionsArray[i]; exist = true; break; } } if (!exist){ targetSelect.options[targetSelect.options.length] = cachOptionsArray[i]; } }}//--></SCRIPT> jquery如何获得表中最后一个tr的id呢? js能不能获取图片的大小 各位大侠给点意见 写了一个简单的javascript 不执行,麻烦大家看下 如何实现通过链接跳转页面,并实现iframe数据访问 页面缩小以后,內容換行了... 层显示问题 求<javaScript宝典>(第四版)光盘(100分) 如何防止查看网页源文件,在线等,得到正确答案即结帐,急,谢谢! 急用,在线等:往表单域中插入内容? 在JS里怎样写这个:如何判断某个变量是否存在? 请问这样把jsp从数据库里select的记录赋值给javascipt的数组
<table width="200">
<tr>
<td align="left" height="25" width="40%"><select multiple name="srcList" size=5>
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
</select></td>
<td align="center" height="25" width="20%"><br />
<input type="button" name="Submit" value=">" onclick="moveSelected(this.form.srcList, this.form.destList)"/>
<br />
<input type="button" name="Submit2" value="<" onclick="moveSelected( this.form.destList, this.form.srcList)"/>
</td>
<td align="left" height="25" width="40%"><select multiple name="destList" size=5 selected>
</select> </td>
</tr>
</table>
</form>
<SCRIPT LANGUAGE="JavaScript">
<!--/**
* move options from a select to another select
* @param object targetSelect as html element select
* @param object targetSelect as html element select
* @version build 20051018
* @author [email protected]
*/
function moveSelected(sourceSelect, targetSelect){
var cachOptionsArray = new Array();
var index = 0;
for (var i = sourceSelect.options.length - 1; i >= 0; i--){
if (sourceSelect.options[i].selected){
cachOptionsArray[index] = new Option(sourceSelect.options[i].text, sourceSelect.options[i].value);
sourceSelect.options[i] = null;
index++;
}
}
var exist = false;
for (var i = cachOptionsArray.length - 1; i >= 0; i--){
exist = false;
for (var j = 0; j < targetSelect.options.length; j++){
if (targetSelect.options[j].value.toString() == cachOptionsArray[i].value.toString()){
//alert("“" + cachOptionsArray[i].text + "”已经存在了!");
//sourceSelect.options[sourceSelect.options.length] = cachOptionsArray[i];
exist = true;
break;
}
}
if (!exist){
targetSelect.options[targetSelect.options.length] = cachOptionsArray[i];
}
}
}
//-->
</SCRIPT>