Customize the tick label in Blazor Range Slider Component

21 Feb 20256 minutes to read

Slider can be customized via CSS. By overriding the slider CSS classes, you can customize the ticks. The ticks in slider allows to easily identify the current value/values of the slider. It contains smallStep and largeStep. By default, slider has class e-tick for slider ticks. You can override the class as per your requirement. Refer to the following code snippet to render ticks.

.e-scale .e-tick.e-custom::before {
    content: '\e967';
    position: absolute;
}

Here, the color for rendered ticks has been applied through nth-child(child_number). The color is applied to the value of the child_number in the slider.

#ticks_slider .e-scale :nth-child(1)::before {
    color: red;
}

@using Syncfusion.Blazor.Inputs

<div id="app">
    <div id="container">
        <div class="col-lg-12 control-section">
            <div class="slider-content-wrapper">
                <div class="slider_container" id="slider_wrapper">
                    <div class="slider_labelText userselect">Dynamic ticks color</div>
                    <!-- Ticks slider element -->
                    <SfSlider ID="ticks_slider" Enabled="true" Min="10" Max="60" Step="10" Type=SliderType.Default @bind-Value="@value">
                        <SliderTicks Placement="Placement.Before"
                                         ShowSmallTicks="true"
                                         LargeStep="10"
                                         SmallStep="10"></SliderTicks>
                        <SliderEvents TicksRendering="@TicksRendering" TValue="int"></SliderEvents>
                    </SfSlider>
                </div>
            </div>
        </div>
    </div>
</div>

@code {
    int value = 50;
    public void TicksRendering(SliderTickEventArgs args)
    {
       args.HtmlAttributes["class"] = args.HtmlAttributes["class"] + " e-custom";
    }
}

<style>
    #app {
        height: 40px;
        position: absolute;
        width: 50%;
    }

    .slider-content_wrapper {
        width: 40%;
        margin: 0 auto;
        min-width: 185px;
    }
    
    .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 */
    }
    
    .slider_labelText {
        text-align: -webkit-left;
        font-weight: 500;
        font-size: 13px;
        padding-bottom: 40px;
    }
    
    .slider_container {
        margin-top: 40px;
    }
    
    #ticks_slider.e-control.e-slider .e-range {
        z-index: unset;
    }
    
    #ticks_slider .e-scale .e-tick {
        background-image: none;
        visibility: visible;
        font-family: 'e-customized-icons';
    }
    
    #ticks_slider .e-scale {
        z-index: 0 !important;
    }
    
    #ticks_slider .e-scale .e-tick.e-custom::before {
        font-size: 14px;
        content: '\e967';
        position: absolute;
    }
    
    #ticks_slider .e-scale ::before {
        left: calc(50% - 6px);
        top: 3px;
    }
    
    #ticks_slider .e-scale :nth-child(1)::before {
        left: calc(0% - 6px);
    }
    
    #ticks_slider .e-scale :nth-child(6)::before {
        left: calc(100% - 6px);
    }
    
    #ticks_slider .e-scale :nth-child(1)::before {
        color: red;
    }

    #ticks_slider .e-scale :nth-child(2)::before {
        color: blue;
    }
    
    #ticks_slider .e-scale :nth-child(3)::before {
        color: green;
    }
    
    #ticks_slider .e-scale :nth-child(4)::before {
        color: blueviolet;
    }
    
    #ticks_slider .e-scale :nth-child(5)::before {
        color: orange;
    }
    
    #ticks_slider .e-scale :nth-child(6)::before {
        color: pink;
    }
    
    #slider+.e-scale .e-tick.e-first-tick :nth-child(2) {
        margin-left: -20px;
    }
    
    @font-face {
        font-family: 'e-customized-icons';
        src: url(data:application/x-font-ttf;charset=utf-8;base64,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) format('truetype');
        font-weight: normal;
        font-style: normal;
    }
</style>