Customize Slider Thumb

30 Jan 20254 minutes to read

Slider appearance can be customized through CSS. By overriding the slider CSS classes, you can customize the thumb. By default, slider has unique class e-handle for slider thumb. You can override the following class as per your requirement. Here, in the sample, the slider thumb has been customized to square, circle, oval shapes, and background image has also been customized.

.e-control.e-slider .e-handle {
    background-image: url('https://ej2.syncfusion.com/demos/src/slider/images/thumb.png');
    background-color: transparent;
    height: 25px;
    width: 25px;
}
#square_slider.e-control.e-slider .e-handle {
    border-radius: 0%;
    background-color: #f9920b;
    border: 0;
}
#circle_slider.e-control.e-slider .e-handle {
    border-radius: 50%;
    background-color: #f9920b;
    border: 0;
}
#oval_slider.e-control.e-slider .e-handle {
    height: 25px;
    width: 8px;
    top: 3px;
    border-radius: 15px;
    background-color: #f9920b;
}

CSHTML

@using Syncfusion.EJ2
@using Syncfusion.EJ2.Inputs

<div id='container'>
  <div class="col-lg-12 control-section">
      <div class="slider-content-wrapper">
          <div class="slider_container">
              <div class="labelText slider-userselect">Square</div>
              @Html.EJS().Slider("square_slider").Min(0).Max(100).Value(30).Enabled(true).Render()
          </div>
          <div class="slider_container">
              <div class="labelText slider-userselect">Circle</div>
              @Html.EJS().Slider("circle_slider").Min(0).Max(100).Value(30).Enabled(true).Render()
          </div>
          <div class="slider_container">
              <div class="labelText slider-userselect">Oval</div>
              @Html.EJS().Slider("oval_slider").Min(0).Max(100).Value(30).Enabled(true).Render()
          </div>
          <div class="slider_container">
              <div class="labelText slider-userselect">Custom image</div>
              @Html.EJS().Slider("image_slider")
                .Value(30)
                .Tooltip(new SliderTooltipData { IsVisible = true, Placement = TooltipPlacement.After}).Render()
          </div>
      </div>
  </div>
</div>

<style>
  .slider-content-wrapper {
    width: 40%;
    margin: 0 auto;
    min-width: 185px;
  }

  .slider-userselect {
    -webkit-user-select: none;
    /* Safari 3.1+ */
    -moz-user-select: none;
    /* Firefox 2+ */
    -ms-user-select: none;
    /* IE 10+ */
    user-select: none;
    /* Standard syntax */
  }

  .labelText {
    text-align: left;
    font-weight: 500;
    font-size: 13px;
    padding-bottom: 10px;
  }

  .slider_container {
    margin-top: 40px;
  }

  .e-bigger .content-wrapper {
    width: 80%;
  }

  #square_slider .e-handle {
    border-radius: 0;
    background-color: #f9920b;
    border: 0;
  }

  #circle_slider .e-handle {
    background-color: #f9920b;
    border-radius: 50%;
    border: 0;
  }

  #image_slider .e-handle {
    height: 25px;
    width: 24px;
    background-size: 24px;

  }

  #image_slider .e-handle {
    background-image: url('https://ej2.syncfusion.com/demos/src/slider/images/thumb.png');
    background-repeat: no-repeat;
    background-color: transparent;
    border: 0;
  }

  #square_slider .e-tab-handle::after,
  #circle_slider .e-tab-handle::after {
    background-color: #f9920b;
  }

  #image_slider .e-tab-handle::after {
    background-color: transparent;
  }

  #oval_slider .e-handle {
    height: 25px;
    width: 8px;
    top: 3px;
    border-radius: 15px;
    background-color: #f9920b;
  }
</style>

Custom-thumb.cs

public ActionResult TimeFormat()
{
    return View();
}