getElementsByTagName时，对页面上所有的select怎么操作

zhouwei7682719 2010-12-21 09:47:45

现在已经知道j=第几行的值了，我想根据j 获取这行中select的选中值！怎么得到？？

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zhouwei7682719 2010-12-21

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3c.org/TR/1999/REC-html401-19991224/loose.dtd">

<!-- saved from url=(0053)http://localhost:4213/contactManager/equipments2.aspx -->

<HTML xmlns="http://www.w3.org/1999/xhtml"><HEAD id=Head1><TITLE>租赁设备</TITLE>

<META http-equiv=Content-Type content="text/html; charset=utf-8"><LINK 

href="租赁设备.files/Main.css" type=text/css rel=Stylesheet><LINK 

href="租赁设备.files/test.css" type=text/css rel=Stylesheet>

<META content="MSHTML 6.00.2900.6049" name=GENERATOR></HEAD>

<BODY>

<FORM id=form1 name=form1 action=equipments2.aspx method=post target=_self>

<DIV><INPUT id=__EVENTTARGET type=hidden name=__EVENTTARGET> <INPUT 

id=__EVENTARGUMENT type=hidden name=__EVENTARGUMENT> <INPUT id=__LASTFOCUS 

type=hidden name=__LASTFOCUS> <INPUT id=__VIEWSTATE type=hidden 

value=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 

name=__VIEWSTATE> </DIV>

<SCRIPT type=text/javascript>

//<![CDATA[

var theForm = document.forms['form1'];

if (!theForm) {

    theForm = document.form1;

}

function __doPostBack(eventTarget, eventArgument) {

    if (!theForm.onsubmit || (theForm.onsubmit() != false)) {

        theForm.__EVENTTARGET.value = eventTarget;

        theForm.__EVENTARGUMENT.value = eventArgument;

        theForm.submit();

    }

}

//]]>

</SCRIPT>



<DIV>

<DIV style="WIDTH: 90%" align=right><INPUT id=ImageButton1 

style="BORDER-TOP-WIDTH: 0px; BORDER-LEFT-WIDTH: 0px; BORDER-BOTTOM-WIDTH: 0px; BORDER-RIGHT-WIDTH: 0px" 

onclick=getLastId(); type=image src="租赁设备.files/add3.jpg" 

name=ImageButton1></DIV><INPUT id=HiddenField2 type=hidden name=HiddenField2> 

<INPUT id=Repeater1_ctl00_Hiddenem_id type=hidden value=16 

name=Repeater1$ctl00$Hiddenem_id> 

<DIV style="WIDTH: 100%; BACKGROUND-COLOR: #cccccc">名称： 测试设备11    

<INPUT id=Checkbox2 type=checkbox value=16 name=allck>0100210011 <BR>单价： <INPUT 

id=Repeater1_ctl00_txtrentmoney style="WIDTH: 60px" disabled value=0 

name=Repeater1$ctl00$txtrentmoney>元  类型： <SELECT 

id=Repeater1_ctl00_droplistrtType 

onchange="getvalue(this);setTimeout('__doPostBack(\'Repeater1$ctl00$droplistrtType\',\'\')', 0)" 

name=Repeater1$ctl00$droplistrtType> <OPTION value=1 selected>面积</OPTION> 

  <OPTION value=2>体积</OPTION> <OPTION value=3>吨位</OPTION> <OPTION 

  value=4>日</OPTION> <OPTION value=5>月</OPTION> <OPTION value=6>季</OPTION> 

  <OPTION value=7>半年</OPTION> <OPTION value=8>年</OPTION> <OPTION 

  value=9>n年</OPTION></SELECT> 

<HR>

</DIV><INPUT id=Repeater1_ctl01_Hiddenem_id type=hidden value=10 

name=Repeater1$ctl01$Hiddenem_id> 

<DIV style="WIDTH: 100%; BACKGROUND-COLOR: #cccccc">名称： 测试设备3    

<INPUT id=Checkbox2 type=checkbox value=10 name=allck>0100110005 <BR>单价： <INPUT 

id=Repeater1_ctl01_txtrentmoney style="WIDTH: 60px" disabled value=0 

name=Repeater1$ctl01$txtrentmoney>元  类型： <SELECT 

id=Repeater1_ctl01_droplistrtType 

onchange="getvalue(this);setTimeout('__doPostBack(\'Repeater1$ctl01$droplistrtType\',\'\')', 0)" 

name=Repeater1$ctl01$droplistrtType> <OPTION value=1 selected>面积</OPTION> 

  <OPTION value=2>体积</OPTION> <OPTION value=3>吨位</OPTION> <OPTION 

  value=4>日</OPTION> <OPTION value=5>月</OPTION> <OPTION value=6>季</OPTION> 

  <OPTION value=7>半年</OPTION> <OPTION value=8>年</OPTION> <OPTION 

  value=9>n年</OPTION></SELECT> 

<HR>

</DIV><INPUT id=Repeater1_ctl02_Hiddenem_id type=hidden value=6 

name=Repeater1$ctl02$Hiddenem_id> 

<DIV style="WIDTH: 100%; BACKGROUND-COLOR: #cccccc">名称： 测试设备1    

<INPUT id=Checkbox2 type=checkbox value=6 name=allck>0100110001 <BR>单价： <INPUT 

id=Repeater1_ctl02_txtrentmoney style="WIDTH: 60px" disabled value=0 

name=Repeater1$ctl02$txtrentmoney>元  类型： <SELECT 

id=Repeater1_ctl02_droplistrtType 

onchange="getvalue(this);setTimeout('__doPostBack(\'Repeater1$ctl02$droplistrtType\',\'\')', 0)" 

name=Repeater1$ctl02$droplistrtType> <OPTION value=1 selected>面积</OPTION> 

  <OPTION value=2>体积</OPTION> <OPTION value=3>吨位</OPTION> <OPTION 

  value=4>日</OPTION> <OPTION value=5>月</OPTION> <OPTION value=6>季</OPTION> 

  <OPTION value=7>半年</OPTION> <OPTION value=8>年</OPTION> <OPTION 

  value=9>n年</OPTION></SELECT> 

<HR>

</DIV><!-- AspNetPager 7.3.2  Copyright:2003-2010 Webdiyer (www.webdiyer.com) -->

<DIV class=anpager id=AspNetPager1 style="WIDTH: 100%; TEXT-ALIGN: center"><A 

style="MARGIN-RIGHT: 5px" disabled>首页</A><A style="MARGIN-RIGHT: 5px" 

disabled>上一页</A><SPAN class=cpb style="MARGIN-RIGHT: 5px">1</SPAN><A 

style="MARGIN-RIGHT: 5px" disabled>下一页</A><A style="MARGIN-RIGHT: 5px" 

disabled>尾页</A> </DIV><!-- AspNetPager 7.3.2  Copyright:2003-2010 Webdiyer (www.webdiyer.com) --></DIV></FORM>

<SCRIPT language=javascript type=text/javascript>

 function getLastId()

 {

      var   getCK=document.getElementsByTagName("input");

      var selects=document.getElementsByTagName("select");

      var cks= document.getElementsByName("allck");

      for(var j=0;j<cks.length;j++)

      {

        if(cks[j].type=="checkbox")

        {

            if(cks[j].checked)

            {

                alert("我的天啊"+cks[j].value+"*********"); 

                alert(selects.item[j]);

            }

        }

      }

     

 }

 function getvalue(obj)

 {

        var m=obj.options[obj.selectedIndex].value

        alert(m);//获取value

        var n=obj.options[obj.selectedIndex].text

        alert(n);//获取文本 

 }

</SCRIPT>

</BODY></HTML>

flyerwing 2010-12-21

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var slt=document.getElementById("id");
slt.value;
slt.option[slt.selectedIndex].text

Mr-Jee 2010-12-21

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select.value

<html>

<head>

<title>

javascript

</title>



</head>

<body>

<select id="test">

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

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

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

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

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

</select>

<input type="button" onclick="alert(document.getElementById('test').value);" value="test" />

</body>

</html>