如何用JS获取下拉框的值？－－dropdownlist

[lys412]

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

[lsqkeke]

我也学到了 顶了

[baobei7758]

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

[jxufewbt]

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

[ywcyj]

顶

[lys412]

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

[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

[jacky125]

<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??????

[kgdiwss]

js不是写在value里的吧

[jacky125]

<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??????

[辉说慧语]

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

[antony1029]

谢谢。很有用

[jacky125]

<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??????

[huangkc]

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

[goody9807]

document.all("ddlBusCode").value

[sugarsupper]

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

[酸酸甜甜就是我啊]

mark

[singlepine]

http://singlepine.cnblogs.com/articles/265678.html

var province=document.getElementById("DropDownList1");
var pindex = province.selectedIndex;
var pValue = province.options[pindex].value;
var pText = province.options[pindex].text;

[singlepine]

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;

[luoxj_win]

<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！

[luoxj_win]

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