如何用JS获取下拉框的值？－－dropdownlist

Question

<asp:dropdownlist id="ddlBusCode" runat="server"></asp:dropdownlist>
 如何用JS获取下拉框的值？

Answer 1

var ddl = document.getElementById("ddlBusCode")
var index = ddl.seletedIndex;var Value = ddl.options[index].value;
var Text  = ddl.options[index].text;

Answer 2

javascript:
var aaa=ddlBusCode.options[this.selectedIndex].value;

Answer 3

javascript:
var aaa=ddlBusCode.options[ddlBusCode.selectedIndex].value;

Answer 4

ld_thinking的就行
var ddl = document.getElementById("ddlBusCode")
var index = ddl.seletedIndex;var Value = ddl.options[index].value;
var Text  = ddl.options[index].text;

Answer 5

var ksobj=document.getElementById("ksobj");
var tempksrq=ksobj.options[ksobj.selectedIndex].value;

Answer 6

var aaa=ddlBusCode.options[ddlBusCode.selectedIndex].value;

Answer 7

dropdownlist的值是绑定的，也可以么？
我用了报错，说options[...].VLLUE为空

Answer 8

<INPUT id="ms" style="Z-INDEX: 103; LEFT: 384px; POSITION: absolute; TOP: 388px" type="text" value ="javascript:ddlBusCode.options[ddlBusCode.selectedIndex].value;">
------------------------------------------------------------------------------------
为什么文本框不能显示出来呢??????

Answer 9

<INPUT id="ms" style="Z-INDEX: 103; LEFT: 384px; POSITION: absolute; TOP: 388px" type="text" value ="javascript:ddlBusCode.options[ddlBusCode.selectedIndex].value;">
------------------------------------------------------------------------------------
为什么文本框不能显示出来呢??????

Answer 10

var c=document.all('drlstC')
string dd= c.options[c.selectedIndex].value

Answer 11

<INPUT id="ms" style="Z-INDEX: 103; LEFT: 384px; POSITION: absolute; TOP: 388px" type="text" value ="javascript:ddlBusCode.options[ddlBusCode.selectedIndex].value;">
------------------------------------------------------------------------------------
为什么文本框不能显示出来呢??????

Answer 12

添加元素
opt = new Option(text,value);
objSel2.options[indexvalue] = opt;
另要注意大小写

Answer 13

or  document.all['ddlBusCode'].value=...

Answer 14

http://singlepine.cnblogs.com/articles/265678.htmlvar province=document.getElementById("DropDownList1");
var pindex = province.selectedIndex;
var pValue = province.options[pindex].value;
var pText  = province.options[pindex].text;

Answer 15

to: jacky125() 
那怎样把获取下拉框的值在前台放进文本框呢????
大家帮忙想一想
-----------------------------------------
var province=document.getElementById("DropDownList1");
var pindex = province.selectedIndex;
var pValue = province.options[pindex].value;
var pText  = province.options[pindex].text;document.getElementById("<%=TextBox1.ClientID%>").innerText=pValue+"|"+pText;

Answer 16

<script>
    function show3(ddl)
    {
        document.getElementById("txtName").value=ddl.options[ddl.selectedIndex].value;
    }
</script>
<asp:DropDownList ID="ddlName" runat="server" OnChange="show3(this)">
        <asp:ListItem Value="Jack"></asp:ListItem>
        <asp:ListItem Value="Tom"></asp:ListItem>
        <asp:ListItem Value="Mike"></asp:ListItem>
</asp:DropDownList>
-----------------------
结贴给分！！！！不结贴就不尊重别人的劳动成果！

Answer 17

补充上面的代码，少了一个控件！
 <asp:TextBox ID="txtName" runat="server"></asp:TextBox>