How to perform validation for a radio button group (one radio button should be selected) using jQuery validation plugin?
This question is related to
jquery
validation
Another way to validate is like this.
var $radio = $('input:radio[name="nameRadioButton"]');
$radio.addClass("validate[required]");
I hope my example will help you
code for radio button -
<div>
<span class="radio inline" style="margin-right: 10px;">@Html.RadioButton("Gender", "Female",false) Female</span>
<span class="radio inline" style="margin-right: 10px;">@Html.RadioButton("Gender", "Male",false) Male</span>
<div class='GenderValidation' style="color:#ee8929;"></div>
</div>
<input class="btn btn-primary" type="submit" value="Create" id="create"/>
and jQuery code-
<script>
$(document).ready(function () {
$('#create').click(function(){
var gender=$('#Gender').val();
if ($("#Gender:checked").length == 0){
$('.GenderValidation').text("Gender is required.");
return false;
}
});
});
</script>
You can also use this:
<fieldset>
<input type="radio" name="myoptions[]" value="blue"> Blue<br />
<input type="radio" name="myoptions[]" value="red"> Red<br />
<input type="radio" name="myoptions[]" value="green"> Green<br />
<label for="myoptions[]" class="error" style="display:none;">Please choose one.</label>
</fieldset>
and simply add this rule
rules: {
'myoptions[]':{ required:true }
}
Mention how to add rules.
Puts the error message on top.
<style>
.radio-group{
position:relative; margin-top:40px;
}
#myoptions-error{
position:absolute;
top: -25px;
}
</style>
<div class="radio-group">
<input type="radio" name="myoptions" value="blue" class="required"> Blue<br />
<input type="radio" name="myoptions" value="red"> Red<br />
<input type="radio" name="myoptions" value="green"> Green </div>
</div><!-- end radio-group -->
use the following rule for validating radio button group selection
myRadioGroupName : {required :true}
myRadioGroupName is the value you have given to name attribute
I had the same problem. Wound up just writing a custom highlight and unhighlight function for the validator. Adding this to the validaton options should add the error class to the element and its respective label:
'highlight': function (element, errorClass, validClass) {
if($(element).attr('type') == 'radio'){
$(element.form).find("input[type=radio]").each(function(which){
$(element.form).find("label[for=" + this.id + "]").addClass(errorClass);
$(this).addClass(errorClass);
});
} else {
$(element.form).find("label[for=" + element.id + "]").addClass(errorClass);
$(element).addClass(errorClass);
}
},
'unhighlight': function (element, errorClass, validClass) {
if($(element).attr('type') == 'radio'){
$(element.form).find("input[type=radio]").each(function(which){
$(element.form).find("label[for=" + this.id + "]").removeClass(errorClass);
$(this).removeClass(errorClass);
});
}else {
$(element.form).find("label[for=" + element.id + "]").removeClass(errorClass);
$(element).removeClass(errorClass);
}
},
code for radio button -
<div>
<span class="radio inline" style="margin-right: 10px;">@Html.RadioButton("Gender", "Female",false) Female</span>
<span class="radio inline" style="margin-right: 10px;">@Html.RadioButton("Gender", "Male",false) Male</span>
<div class='GenderValidation' style="color:#ee8929;"></div>
</div>
<input class="btn btn-primary" type="submit" value="Create" id="create"/>
and jQuery code-
<script>
$(document).ready(function () {
$('#create').click(function(){
var gender=$('#Gender').val();
if ($("#Gender:checked").length == 0){
$('.GenderValidation').text("Gender is required.");
return false;
}
});
});
</script>
With newer releases of jquery (1.3+ I think), all you have to do is set one of the members of the radio set to be required and jquery will take care of the rest:
<input type="radio" name="myoptions" value="blue" class="required"> Blue<br />
<input type="radio" name="myoptions" value="red"> Red<br />
<input type="radio" name="myoptions" value="green"> Green
The above would require at least 1 of the 3 radio options w/ the name of "my options" to be selected before proceeding.
The label suggestion by Mahes, btw, works wonderfully!
I had the same problem. Wound up just writing a custom highlight and unhighlight function for the validator. Adding this to the validaton options should add the error class to the element and its respective label:
'highlight': function (element, errorClass, validClass) {
if($(element).attr('type') == 'radio'){
$(element.form).find("input[type=radio]").each(function(which){
$(element.form).find("label[for=" + this.id + "]").addClass(errorClass);
$(this).addClass(errorClass);
});
} else {
$(element.form).find("label[for=" + element.id + "]").addClass(errorClass);
$(element).addClass(errorClass);
}
},
'unhighlight': function (element, errorClass, validClass) {
if($(element).attr('type') == 'radio'){
$(element.form).find("input[type=radio]").each(function(which){
$(element.form).find("label[for=" + this.id + "]").removeClass(errorClass);
$(this).removeClass(errorClass);
});
}else {
$(element.form).find("label[for=" + element.id + "]").removeClass(errorClass);
$(element).removeClass(errorClass);
}
},
With newer releases of jquery (1.3+ I think), all you have to do is set one of the members of the radio set to be required and jquery will take care of the rest:
<input type="radio" name="myoptions" value="blue" class="required"> Blue<br />
<input type="radio" name="myoptions" value="red"> Red<br />
<input type="radio" name="myoptions" value="green"> Green
The above would require at least 1 of the 3 radio options w/ the name of "my options" to be selected before proceeding.
The label suggestion by Mahes, btw, works wonderfully!
Puts the error message on top.
<style>
.radio-group{
position:relative; margin-top:40px;
}
#myoptions-error{
position:absolute;
top: -25px;
}
</style>
<div class="radio-group">
<input type="radio" name="myoptions" value="blue" class="required"> Blue<br />
<input type="radio" name="myoptions" value="red"> Red<br />
<input type="radio" name="myoptions" value="green"> Green </div>
</div><!-- end radio-group -->
Another way to validate is like this.
var $radio = $('input:radio[name="nameRadioButton"]');
$radio.addClass("validate[required]");
I hope my example will help you
As per Brandon's answer. But if you're using ASP.NET MVC which uses unobtrusive validation, you can add the data-val attribute to the first one. I also like to have labels for each radio button for usability.
<span class="field-validation-valid" data-valmsg-for="color" data-valmsg-replace="true"></span>
<p><input type="radio" name="color" id="red" value="R" data-val="true" data-val-required="Please choose one of these options:"/> <label for="red">Red</label></p>
<p><input type="radio" name="color" id="green" value="G"/> <label for="green">Green</label></p>
<p><input type="radio" name="color" id="blue" value="B"/> <label for="blue">Blue</label></p>
You can also use this:
<fieldset>
<input type="radio" name="myoptions[]" value="blue"> Blue<br />
<input type="radio" name="myoptions[]" value="red"> Red<br />
<input type="radio" name="myoptions[]" value="green"> Green<br />
<label for="myoptions[]" class="error" style="display:none;">Please choose one.</label>
</fieldset>
and simply add this rule
rules: {
'myoptions[]':{ required:true }
}
Mention how to add rules.
use the following rule for validating radio button group selection
myRadioGroupName : {required :true}
myRadioGroupName is the value you have given to name attribute
Source: Stackoverflow.com