Javascript 如果通过javascript选中另一个复选框，如何自动取消选中一个复选框？
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How to automatically uncheck a checkbox if another checkbox is checked through javascript?
提问by Sandipan
I have a checkbox Birthdate which shows the mm/dd only.And below it there is another checkbox called ShowYear which shows the year and this checkbox is only visible if the Bithdate checkbox is checked.
我有一个复选框出生日期，它只显示 mm/dd。在它下面有另一个名为 ShowYear 的复选框，它显示年份，并且这个复选框只有在选中了出生日期复选框时才可见。
Now I want to uncheck the ShowYear checkbox automatically if the Birthdate checkbox is unchecked through javascript.
现在，如果通过 javascript 取消选中出生日期复选框，我想自动取消选中 ShowYear 复选框。
回答by bla
<input id="cbxBirthDate" type="checkbox" onClick="javascript:uncheckShowYear(this);" />
<input id="cbxShowYear" type="checkbox" />
<script language="javascript" type="text/javascript">
function uncheckShowYear(obj)
{
if (obj.checked == false)
{
document.getElementById("cbxShowYear").checked = false;
}
}
</script>
回答by Sarfraz
First, give your check boxes idseg:
首先，给你的复选框，ids例如：
<input type="checkbox" id="birth" />
<input type="checkbox" id="year" />
Javascript:
Javascript：
<script type="text/javascript">
window.onload = function(){
var birth = document.getElementById('birth');
var year = document.getElementById('year');
if (birth.checked == false)
{
year.checked = false;
}
}
</script>
回答by Pranay Rana
If you are using jquery than
如果你使用 jquery 比
$(document).ready( function a()
{
if ( $('#birth').is(':checked'))
{
$('#year').attr('checked', false);
}
});
