如果下拉列表等于某个值,您将如何验证字段。
示例:
HTML
<form id="foo">
<!-----Dropdown----->
<select name="budget_type">
<option value="fixed" <?php if($budget_type=="fixed" ){echo "selected";} ?> >Fixed</option>
<option value="hourly" <?php if($budget_type=="hourly" ){echo "selected";} ?> >Hourly</option>
</select>
<!-----Field----->
<input id="dollar" type="text" name="budget" style="text-indent:17px;" value="<?php echo $budget; ?>" />
</form>
jQuery的:
$('#foo').validate({
rules: {
budget: {
required: true,
notEquals: "0",
digits: true,
min: 50,
}
},
messages: {
budget: {
required: "Please enter a value",
min: "Minimum $ {0}",
}
}
});
因此,如果预算类型是固定的,那么最低预算是50,但如果budget_type是每小时,那么最低预算是10.我尝试了if()函数但不知道如何以及在何处放置代码。
答案 0 :(得分:1)
您可以更改min
规则以动态传递值
jQuery(function($) {
$('#foo').validate({
rules: {
budget: {
required: true,
digits: true,
min: function() {
return $('select[name="budget_type"]').val() == 'fixed' ? 50 : 10
},
}
},
messages: {
budget: {
required: "Please enter a value",
min: "Minimum $${0}",
}
}
});
});
&#13;
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/jquery-validate/1.13.1/jquery.validate.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/jquery-validate/1.13.1/additional-methods.js"></script>
<form id="foo">
<select name="budget_type">
<option value="fixed">Fixed</option>
<option value="hourly">Hourly</option>
</select>
<input id="dollar" type="text" name="budget" style="text-indent:17px;" value="20" />
<input type="submit" value="Save" />
</form>
&#13;