Template in ASP.NET CORE Timeline control

30 Jan 20255 minutes to read

The Timeline control allows you to customize the appearance for each item by using the template property to modify the dot items, templated contents, progress bar styling and more.

The template context receives the following information:

Type	Purpose
item	Indicates the current data of the Timeline item.
itemIndex	Indicates the current index of the Timeline item.

CSHTML

@using Syncfusion.EJ2.Layouts;

<div class="container" style="height: 150px; width: 600px;">
    <ejs-timeline id="timeline" orientation="Horizontal" cssClass="custom-timeline" template="#timeline-template">
        <e-timeline-items>
            <e-timeline-item content="Kickoff meeting"></e-timeline-item>
            <e-timeline-item content="Content approved"></e-timeline-item>
            <e-timeline-item content="Design approved"></e-timeline-item>
            <e-timeline-item content="Product delivered"></e-timeline-item>
        </e-timeline-items>
    </ejs-timeline>
</div>

<script id="timeline-template" type="text/x-jsrender">
    <div class='template-container item-${itemIndex}'>
        <div class="content-container">
            <div class="timeline-content"> ${item.content} </div>
        </div>
        <div class="content-connector"></div>
        <div class="progress-line">
            <span class="indicator"></span>
        </div>
    </div>
</script>

<style>
    .custom-timeline .e-timeline-item.e-item-template {
        align-items: flex-end;
    }

    .custom-timeline .e-timeline-items {
        justify-content: center;
    }

    .template-container .content-connector {
        position: absolute;
        left: 88%;
        width: 3px;
        height: 28px;
    }

    .template-container .content-container {
        padding: 8px;
        border-width: 1px;
        border-style: solid;
    }

    .content-container .timeline-content {
        font-size: 14px;
    }

    .container *{
        box-sizing: unset;
    }

    /* Color customizations - Progress line, connector line, dot border */
    .item-0 .progress-line, .item-0 .content-connector {
        background-color: rgb(233, 93, 93);
    }

    .item-1 .progress-line, .item-1 .content-connector {
        background-color: rgba(247, 179, 22, 0.907);
    }

    .item-2 .progress-line, .item-2 .content-connector {
        background-color: rgb(60, 184, 60);
    }

    .item-3 .progress-line, .item-3 .content-connector {
        background-color: rgb(153, 29, 230);
    }

    .item-0 .progress-line .indicator, .item-0 .content-container {
        border-color: rgb(233, 93, 93);
    }

    .item-1 .progress-line .indicator, .item-1 .content-container {
        border-color: rgba(247, 179, 22, 0.907);
    }

    .item-2 .progress-line .indicator, .item-2 .content-container {
        border-color: rgb(60, 184, 60);
    }

    .item-3 .progress-line .indicator, .item-3 .content-container {
        border-color: rgb(153, 29, 230);
    }

    .item-0 .content-container {
        box-shadow: 2px 2px 8px rgb(233, 93, 93);
    }

    .item-1 .content-container {
        box-shadow: 2px 2px 8px rgba(247, 179, 22, 0.907);
    }

    .item-2 .content-container {
        box-shadow: 2px 2px 8px rgb(60, 184, 60);
    }

    .item-3 .content-container {
        box-shadow: 2px 2px 8px rgb(153, 29, 230);
    }

    /* START --- Customizing Dot and progress line */
    .custom-timeline .template-container .indicator {
        position: absolute;
        width: 25px;
        height: 25px;
        border-radius: 50%;
        background-color: #fff;
        border-width: 6px;
        border-style: solid;
        left: 88%;
        transform: translate(-50%, -40%);
        cursor: pointer;
    }

    .progress-line {
        position: absolute;
        height: 10px;
        width: 100%;
        left: 0;
        top: 50%;
    }
    /* END --- Customizing Icon and progress line */
</style>