检查是否至少使用HTML5选中了一个复选框 [英] Check if at least one checkbox is checked using HTML5 only
问题描述
我正在使用HTML5验证功能制作表单。
示例：
<！DOCTYPE html>
< html>
< head>
< meta charset =utf-8>
< title>表单测试< / title>
< / head>
< body>
< form id =form1method =postaction =>
< label>< input type =checkboxname =color1value =1required /> Green< / label>< br />
< label>< input type =checkboxname =color2value =2required /> Red< / label>< br />
< label>< input type =checkboxname =color3value =3required />黄色< / label>< br />
< label>< input type =checkboxname =color4value =4required /> Blue< / label>< br />
< input type =submit/>< input type =reset/>
< / form>
< / body>
< / html>
我需要它来验证是否至少选中了一个复选框。
必须至少选中一个复选框。
我在这里找到答案：
Jquery - 检查是否至少选中了一个复选框
检查是否使用jQuery检查至少一个复选框
确保选中至少一个复选框
仅在选中至少一个复选框时才提交表单
但是使用JavaScript，jQuery等
可以使用HTML5 onl是吗？
尝试以下代码.......
<！DOCTYPE html>< html>< head> < meta charset =utf-8> < title> Form Test< / title>< / head>< body> < form id =form1method =postaction => < label>< input type =radioname =color1value =1checked /> Green< / label>< br /> < label>< input type =radioname =color1value =2required /> Red< / label>< br /> < label>< input type =radioname =color1value =3required />黄色< / label>< br /> < label>< input type =radioname =color1value =4required /> Blue< / label>< br /> < input type =submit/>< input type =reset/> < / form>< / body>< / html>
I'm making a form using HTML5 validation features.
Example:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Form Test</title>
</head>
<body>
<form id="form1" method="post" action="">
<label><input type="checkbox" name="color1" value="1" required />Green</label><br />
<label><input type="checkbox" name="color2" value="2" required />Red</label><br />
<label><input type="checkbox" name="color3" value="3" required />Yellow</label><br />
<label><input type="checkbox" name="color4" value="4" required />Blue</label><br />
<input type="submit" /><input type="reset" />
</form>
</body>
</html>
I need it to validate if at least one checkbox is checked.
"Must have at least one checkbox checked."
I found answer here:
Jquery - check if at least one checkbox is checked
Check if at least one checkbox is checked using jQuery
Making sure at least one checkbox is checked
Submit form only if at least one checkbox is checked
But using JavaScript, jQuery and etc.
Is possible make using HTML5 only?
Try The following Code.......
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Form Test</title>
</head>
<body>
<form id="form1" method="post" action="">
<label><input type="radio" name="color1" value="1" checked />Green</label><br />
<label><input type="radio" name="color1" value="2" required />Red</label><br />
<label><input type="radio" name="color1" value="3" required />Yellow</label><br />
<label><input type="radio" name="color1" value="4" required />Blue</label><br />
<input type="submit" /><input type="reset"/>
</form>
</body>
</html>
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