Strip lines allows you to highlight certain time or time intervals in the chart. Use the start property to specify an individual line or combine it with the end property setting to specify a time interval.

DevExtreme Gantt - Strip Lines

jQuery

index.js

$(function() {
    $("#gantt").dxGantt({
        stripLines: [{
            title: "Start",
            start: tasks[0].start
        }, {
            title: "Final Phase",
            start: tasks[tasks.length - 3].start,
            end: tasks[tasks.length - 1].end,
        }, {
            title: "Current Time",
            start: new Date(),
            cssClass: "current-time"
        }],
        //...
    });
});

Angular

app.component.html

app.component.ts

app.module.ts

<dx-gantt>
    <dxi-strip-line
        [start]="tasks[0].start"
        title="Start">
    </dxi-strip-line>
    <dxi-strip-line
        [start]="tasks[tasks.length - 3].start"
        [end]="tasks[tasks.length - 1].end"
        title="Final Phase">
    </dxi-strip-line>
    <dxi-strip-line
        [start]="currentTime"
        title="Current Time"
        cssClass="current-time">
    </dxi-strip-line>
</dx-gantt>

import { Component } from '@angular/core';

@Component({
    selector: 'app-root',
    templateUrl: './app.component.html',
    styleUrls: ['./app.component.css']
})

export class AppComponent {
    // ...      
}

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';
import { DxGanttModule } from 'devextreme-angular';

@NgModule({
    imports: [
        BrowserModule,
        DxGanttModule
    ],        
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule { }

Vue

App.vue

<template>
    <DxGantt >
        <DxStripLine
            :start="tasks[0].start"
            title="Start"
        />
        <DxStripLine
            :start="tasks[tasks.length - 3].start"
            :end="tasks[tasks.length - 1].end"
            title="Final Phase"
        />
        <DxStripLine
            :start="currentTime"
            title="Current Time"
            css-class="current-time"
        />
        <!-- ... -->
    </DxGantt>
</template>
<script>
    import 'devextreme/dist/css/dx.light.css';
    import 'devexpress-gantt/dist/dx-gantt.css'; 

    import { 
        DxGantt, DxStripLine
        // ... 
    } from 'devextreme-vue/gantt';

    export default {
        components: { 
            DxGantt, DxStripLine
            // ... 
        }
    };
</script>

React

App.js

import React from 'react';

import 'devextreme/dist/css/dx.light.css';
import 'devexpress-gantt/dist/dx-gantt.css'; 

import Gantt, { 
    // ... 
} from 'devextreme-react/gantt';

const App = () => {
    return (
        <Gantt>
            <StripLine start={tasks[0].start} title="Start" />
            <StripLine start={tasks[tasks.length - 3].start} end={tasks[tasks.length - 1].end} title="Final Phase" />
            <StripLine start={currentDate} title="Current Time" cssClass="current-time" />                
            {/* ... */}
        </Gantt>
    );
};

export default App;

ASP.NET Core Controls

Razor C#

@(Html.DevExtreme().Gantt()
    .StripLines(s => {
        s.Add().Title("Start")
                .Start(SampleData.GanttTasksJohnsonResidence.First().Start);
        s.Add().Title("Final Phase")
                .Start(SampleData.GanttTasksJohnsonResidence.Where(t => t.ID == 20).First().Start)
                .End(SampleData.GanttTasksJohnsonResidence.Where(t => t.ID == 22).First().End);
        s.Add().Title("Current Time")
                .Start(DateTime.Now)
                .CssClass("current-time");
    })
    // ...
)

ASP.NET MVC Controls

Razor C#

@(Html.DevExtreme().Gantt()
    .StripLines(s => {
        s.Add().Title("Start")
                .Start(SampleData.GanttTasksJohnsonResidence.First().Start);
        s.Add().Title("Final Phase")
                .Start(SampleData.GanttTasksJohnsonResidence.Where(t => t.ID == 20).First().Start)
                .End(SampleData.GanttTasksJohnsonResidence.Where(t => t.ID == 22).First().End);
        s.Add().Title("Current Time")
                .Start(DateTime.Now)
                .CssClass("current-time");
    })
    // ...
)