无法使用javascript获取复选框列表 [英] Not able to get the checkboxlist using javascript

问题描述

我正在将javascript用于我的应用程序中的一个ascx控件.

ascx控件在面板内具有复选框列表.我有一个javascript函数来处理复选框列表项的onclick.

我正在尝试将复选框列表作为

var checkBoxList = document.getElementById(<％= CheckBoxList1.ClientID％>");

->它给复选框列表为空；也尝试过，

var checkBoxList = document.getElementById("CheckBoxList1");

如果该值也为null.

I am using javascript for one of the ascx controls in my application.

The ascx controls have checkbox lists inside a panel. I have a javascript function to handle the onclick of checkboxlist items.

I am trying to get the checkbox list as

var checkBoxList = document.getElementById("<%= CheckBoxList1.ClientID %>");

--> it gives checkbox list as null; Also trying with,

var checkBoxList = document.getElementById("CheckBoxList1");

hen also the value is null.

How can I get the checkboxlist item here?

推荐答案

尝试在运行时使用scriptmanager注册您的javascript函数.

try to register your javascript function at runtime using scriptmanager.

如果您可以使用jQuery，则可以尝试使用jQuery选择器选择复选框.这样会更容易并且可以进行很多更改.

If you can use jQuery you can try selecting the checkboxlist using the jQuery Selector. It will be easier and can be altered as much.

(#{元素的运行时ID")

首先，您可以参考此

http://docs.jquery.com/Tutorials:Getting_Started_with_jQuery [ http://api.jquery.com/category/selectors/ [

("#{runtime id of the element")

To get started you may refer this

http://docs.jquery.com/Tutorials:Getting_Started_with_jQuery[^]

And for jQuery selectors, you may refer this

http://api.jquery.com/category/selectors/[^]

If you dont want to go with jQuery please provide info on what client side event you are trying to get the checkbox list. Is that within the onclick event?

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