如何在 javascript 中获取 checkbox1.Checked 属性？
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How to get checkbox1.Checked property within a javascript?
提问by ARATHY
I have two checkboxes.when i checked both the checkboxes i wants to generate an alert "Passed". I have written like this
我有两个复选框。当我选中两个复选框时，我想生成一个警报“通过”。我是这样写的
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Untitled Page</title>
<script type="text/javascript" >
function validate() {
if (document.getElementById('CheckBox1').checked && document.getElementById('CheckBox2').checked) {
alert("passed");
} else {
alert("Referred")
}
}
</script>
<asp:CheckBox ID="CheckBox1" runat="server" OnCheckedChanged="javascript:validate();" />
<asp:CheckBox ID="CheckBox2" runat="server" OnCheckedChanged="javascript:validate();" />
but the problem is this (checkbox1).checked is not getting inbuildly within the .how can i get it? is ther any need for adding extra properties to my project for getting the '.checked' property?its first time i'am using javascript. and my visualstudio version is 3.5.please help
但问题是这个 (checkbox1).checked 并没有在 .how 中得到内置？是否需要向我的项目添加额外的属性以获取“.checked”属性？这是我第一次使用 javascript。我的visualstudio版本是3.5.请帮忙
回答by Abijeet Patro
OnCheckedChangedis a server side event, and you are handing it on the client side.
OnCheckedChanged是一个服务器端事件，你在客户端处理它。
<asp:CheckBox ID="CheckBox1" runat="server" onchange="validate();" />
<asp:CheckBox ID="CheckBox2" runat="server" onchange="validate();" />
Also you might need to use .ClientID-
你也可能需要使用.ClientID-
(document.getElementById('<%=CheckBox1.ClientID%>').checked && document.getElementById('<%=CheckBox2.ClientID%>').checked)
回答by mj930112
try this..
试试这个..
(in html)
（在 html 中）
<input type="checkbox" id="checkbox1" value="checkbox1">
<input type="checkbox" id="checkbox2" value="checkbox2">
(in js)
（在js中）
if(($('#checkbox1').attr('checked'))&&($('#checkbox2').attr('checked')) ){
alert("passed");
} else {
alert("Referred");
}
