The Slider control can be validated using our FormValidator. The following steps walk-through slider validation.
validateHidden
property is set to true.Form validation is done either by ID or name value of the slider control. Above ID of the slider is used to validate it.
Using slider name: Render slider with name attribute. In the following code snippet, name attribute value of slider is used for form validation.
// change event handler for slider
function onChanged(args) {
formObj.validate();
}
The FormValidator
has following default validation rules, which are used to validate the Slider control.
Rules | Description | Example |
---|---|---|
max |
Slider control must have value less than or equal to max number |
if max: 3 , 3 is valid and 4 is invalid |
min |
Slider control must have value greater than or equal to min number |
if min: 4 , 5 is valid and 2 is invalid |
regex |
Slider control must have valid value in regex format |
if regex: '/4/ , 4 is valid and 1 is invalid |
range |
Slider control must have value between range number |
if range: [4,5] , 4 is valid and 6 is invalid |
@using Syncfusion.EJ2
@using Syncfusion.EJ2.Inputs
<div id='container'>
<div class="col-lg-12 control-section">
<div class="content-wrapper" style="margin-bottom: 25px;overflow-x: hidden">
<div class="form-title">
<span>Min</span>
</div>
<form id="formMinId" class="form-horizontal">
<div class="form-group">
<div class="e-float-input">
@Html.EJS().Slider("min-slider").Value(30).Enabled(true).Changed("onMinChanged").Ticks(new SliderTicksData { Placement = Placement.Before, LargeStep = 20, SmallStep = 5, ShowSmallTicks = true }).Render()
</div>
</div>
</form>
<div class="form-title">
<span>Max</span>
</div>
<form id="formMaxId" class="form-horizontal">
<div class="form-group">
<div class="e-float-input">
@Html.EJS().Slider("max-slider").Value(30).Enabled(true).Changed("onMaxChanged").Ticks(new SliderTicksData { Placement = Placement.Before, LargeStep = 20, SmallStep = 5, ShowSmallTicks = true }).Render()
</div>
</div>
</form>
<div class="form-title">
<span>Value</span>
</div>
<form id="formValId" class="form-horizontal">
<div class="form-group">
<div class="e-float-input">
@Html.EJS().Slider("val-slider").Value(30).Enabled(true).Changed("onValChanged").Ticks(new SliderTicksData { Placement = Placement.Before, LargeStep = 20, SmallStep = 5, ShowSmallTicks = true }).Render()
</div>
</div>
</form>
<div class="form-title">
<span>Range</span>
</div>
<form id="formRangeId" class="form-horizontal">
<div class="form-group">
<div class="e-float-input">
@Html.EJS().Slider("range-slider").Value(30).Enabled(true).Changed("onRangeChanged").Ticks(new SliderTicksData { Placement = Placement.Before, LargeStep = 20, SmallStep = 5, ShowSmallTicks = true }).Render()
</div>
</div>
</form>
<div class="form-title">
<span>Custom</span>
</div>
<form id="formCustomId" class="form-horizontal">
<div class="form-group">
<div class="e-float-input">
@Html.EJS().Slider("custom-slider").Type(SliderType.Range).Enabled(true).Changed("onCustomChanged").Ticks(new SliderTicksData { Placement = Placement.Before, LargeStep = 20, SmallStep = 5, ShowSmallTicks = true }).Render()
</div>
</div>
</form>
</div>
</div>
</div>
<script type="text/javascript">
var minOptions = {
rules: {
'min-slider': {
validateHidden: true,
min: [40, "You must select value greater than or equal to 40"]
}
}
};
var formMinId = document.getElementById('formMinId');
// Initialize Form validation
var formMinObj = new ej.inputs.FormValidator(formMinId, minOptions);
function onMinChanged(args) {
// validate the slider value in the form
formMinObj.validate();
}
var maxOptions = {
rules: {
'max-slider': {
validateHidden: true,
max: [40, "You must select value less than or equal to 40"]
}
}
};
var formMaxId = document.getElementById('formMaxId');
// Initialize Form validation
var formMaxObj = new ej.inputs.FormValidator(formMaxId, maxOptions);
function onMaxChanged(args) {
// validate the slider value in the form
formMaxObj.validate();
}
var valOptions = {
rules: {
'val-slider': {
validateHidden: true,
regex: [/40/, "You must select value equal to 40"]
}
}
};
var formValId = document.getElementById('formValId');
// Initialize Form validation
var formValObj = new ej.inputs.FormValidator(formValId, valOptions);
function onValChanged(args) {
// validate the slider value in the form
formValObj.validate();
}
var rangeOptions = {
rules: {
'range-slider': {
validateHidden: true,
range: [40, 80, "You must select values between 40 and 80"]
}
}
};
var formRangeId = document.getElementById('formRangeId');
// Initialize Form validation
var formRangeObj = new ej.inputs.FormValidator(formRangeId, rangeOptions);
function onRangeChanged(args) {
// validate the slider value in the form
formRangeObj.validate();
}
var customOptions = {
rules: {
'custom-slider': {
validateHidden: true,
range: [validateRange, "You must select values between 40 and 80"]
}
}
};
var formCustomId = document.getElementById('formCustomId');
// Initialize Form validation
var formCustomObj = new ej.inputs.FormValidator(formCustomId, customOptions);
function onCustomChanged(args) {
// validate the slider value in the form
formCustomObj.validate();
}
function validateRange(args) {
var SliderCustomObj = document.getElementById('custom-slider').ej2_instances[0];
return SliderCustomObj.value[0] >= 40 && SliderCustomObj.value[1] <= 80;
}
</script>
<style>
.highcontrast form {
background: #000000
}
/* csslint ignore:start */
.highcontrast label.e-custom-label,
.highcontrast label.e-float-text,
.highcontrast label.salary,
.highcontrast input::placeholder,
.highcontrast .e-float-input label.e-float-text {
color: #fff !important;
line-height: 2.3;
}
/* csslint ignore:end */
.e-error,
.e-float-text {
font-weight: 500;
}
table,
td,
th {
padding: 5px;
}
.form-horizontal .form-group {
margin-left: 0;
margin-right: 0;
}
form {
border: 1px solid #ccc;
box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.36);
border-radius: 5px;
background: #f9f9f9;
padding: 23px;
padding-bottom: 20px;
margin: auto;
max-width: 650px;
}
.form-title {
width: 100%;
text-align: center;
padding: 10px;
font-size: 16px;
font-weight: 600;
color: black;
}
</style>
public ActionResult TimeFormat()
{
return View();
}