Published - | Updated - July 9, 2021 05:50 am
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Today, i we will show you bootstrap 4 select dropDown with validation example. This article will give you simple example of bootstrap 4 select dropDown with validation example. you will learn bootstrap 4 select dropDown with validation example. So let’s follow few step to create example of bootstrap 4 select dropDown with validation example.
Example
<html>
<head>
<title>Bootstrap 4 Select DropDown With Validation Example - codeplaners</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.min.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/select2/3.5.0/select2.min.css" />
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/select2/3.5.0/select2-bootstrap.min.css" />
<body>
<div class="continer">
<div class="row mt-5 pt-5">
<div class="col-md-5 text-center offset-md-3 mt-5 pt-5">
<form id="select2Form" method="post" class="form-horizontal">
<label><h3>Choose color</h3></label>
<select name="colors" class="form-control select2-select" multiple data-placeholder="Choose 2-4 colors">
<option value="black">Black</option>
<option value="blue">Blue</option>
<option value="green">Green</option>
<option value="orange">Orange</option>
<option value="red">Red</option>
<option value="yellow">Yellow</option>
<option value="white">White</option>
</select>
<div class="form-group mt-3">
<button type="submit" class="btn btn-success">Submit</button>
</div>
</form>
</div>
</div>
</div>
</body>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/3.5.0/select2.min.js"></script>
<script src="https://oss.maxcdn.com/jquery.bootstrapvalidator/0.5.2/js/bootstrapValidator.min.js"></script>
<script>
$(document).ready(function() {
$('#select2Form')
.find('[name="colors"]')
.select2()
// Revalidate the color when it is changed
.change(function(e) {
$('#select2Form').bootstrapValidator('revalidateField', 'colors');
})
.end()
.find('[name="colors-tags"]')
.select2({
// Specify tags
tags: ['Black', 'Blue', 'Green', 'Orange', 'Red', 'Yellow', 'White']
})
// Revalidate the color when it is changed
.change(function(e) {
$('#select2Form').bootstrapValidator('revalidateField', 'colors-tags');
})
.end()
.bootstrapValidator({
excluded: ':disabled',
feedbackIcons: {
valid: 'glyphicon glyphicon-ok',
invalid: 'glyphicon glyphicon-remove',
validating: 'glyphicon glyphicon-refresh'
},
fields: {
colors: {
validators: {
callback: {
message: 'Please choose 2-4 color you like most',
callback: function(value, validator) {
// Get the selected options
var options = validator.getFieldElements('colors').val();
return (options != null && options.length >= 2 && options.length <= 4);
}
}
}
},
'colors-tags': {
validators: {
callback: {
message: 'Please choose 2-4 color you like most',
callback: function(value, validator) {
// Get the selected options
var options = validator.getFieldElements('colors-tags').val(),
options2 = options.split(',');
return (options2 !== null && options2.length >= 2 && options2.length <= 4);
}
}
}
}
}
});
});
</script>
</html>