在下拉列表中调用javascript更改选定的索引 | 在下拉列表中调用javascript更改选定的索引

本文介绍了在下拉列表中调用javascript更改选定的索引的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我有一个类似tihs的下拉菜单

< asp:DropDownList ID ="cmbexch" runat ="server">

并尝试像这样调用javascript.
在页面加载时，我正在写这行
cmbexch.Attributes.Add("OnSelectedIndexChanged"，"javascript:fillmkttype()")

但它不起作用

i have a dropdown like tihs

<asp:DropDownList ID="cmbexch" runat="server">

And trying to call javascript like this.
On page load i am writting this line
cmbexch.Attributes.Add("OnSelectedIndexChanged", "javascript:fillmkttype()")

but it is not working

推荐答案

<asp:DropDownList ID="ddShed" Width="120px" onchange="GetBalanceQty(this.options[this.selectedIndex].value);"

                                    runat="server">
                                </asp:DropDownList>

JavaScript函数----

JavaScript Function----

function GetBalanceQty(val)
    {
//in val u get dropdown list selected value
        var id = val;
}

谢谢&问候，
沙爹.

Thanks & Regards,
satya.
please mark as answer if helpful.

cmbexch.Attributes.Add("onChange", "return OnSelectedIndexChange();")

<code> OnSelectedIndexChange()</code> should be your  Javascript function that will be call <code>DropDownList </code> Seleted index is changes.

像

Something Like

function OnSelectedIndexChange()
{
alert(''index changed'')
}

您还可以传递该对象以获取所选项目的值.

You can also pass the object to get the value of selected item as well.

这篇关于在下拉列表中调用javascript更改选定的索引的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！