JS验证RadioButton列表或CheckBox列表是否已填写
JS代码:
HTML代码:
var Input2=false;
for (i=0;i<document.form1.RadioButtonList2.length;i++)
{
Input2=Input2||document.form1.RadioButtonList2[i].checked;
}
if (Input2==false)
{
alert('请选择问题2');
return false;
}
for (i=0;i<document.form1.RadioButtonList2.length;i++)
{
Input2=Input2||document.form1.RadioButtonList2[i].checked;
}
if (Input2==false)
{
alert('请选择问题2');
return false;
}
HTML代码:
<input id='RadioButtonList2_0' type='radio' name='RadioButtonList2' value='0' /><label for='RadioButtonList2_0'>a111</label><br />
<input id='RadioButtonList2_1' type='radio' name='RadioButtonList2' value='1' /><label for='RadioButtonList2_1'>a222</label><br />
<input id='RadioButtonList2_2' type='radio' name='RadioButtonList2' value='2' /><label for='RadioButtonList2_2'>a333</label><br />
<input id='RadioButtonList2_1' type='radio' name='RadioButtonList2' value='1' /><label for='RadioButtonList2_1'>a222</label><br />
<input id='RadioButtonList2_2' type='radio' name='RadioButtonList2' value='2' /><label for='RadioButtonList2_2'>a333</label><br />