Agent-readable demo data

Title

JavaScript Gantt Chart | DayPilot Pro for JavaScript Demo

Tree

DayPilot JavaScript Demo

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Description

Read more about the Gantt chart client-side image export.

• Canonical HTML: /demo/gantt/exportpng.html
• Markdown companion: /demo/gantt/exportpng.md
• Folder: /demo/gantt/
• Root: /demo/
• Catalog: /demo/llms.txt

Inline demo script 1

var dp = new DayPilot.Gantt("dp");

        dp.days = 30;

        // generate and load sample tasks
        var start = new DayPilot.Date().getDatePart();
        var last = null;
        for (var i = 0; i < 5; i++) {
            var duration = Math.floor(Math.random() * 3) + 1; // 1 to 3
            var end = start.addDays(duration);

            var e = new DayPilot.Task({
                start: start,
                end: end,
                id: DayPilot.guid(),
                text: "Task " + i,
                tags: {
                    info: "info text"
                },
                children: [
                    {
                        start: start,
                        end: end,
                        id: DayPilot.guid(),
                        text: "Subtask 1",
                        complete: Math.floor(Math.random() * 101) // 0 to 100
                    },
                    {
                        start: start,
                        end: end,
                        id: DayPilot.guid(),
                        text: "Subtask 2",
                        complete: Math.floor(Math.random() * 101) // 0 to 100
                    },
                    {
                        start: end,
                        id: DayPilot.guid(),
                        text: "Milestone 1",
                        type: "Milestone"
                    }

                ]
            });

            dp.tasks.add(e);

            if (last) {
                dp.links.add(new DayPilot.Link({
                    id: DayPilot.guid(),  // optional
                    from: last,
                    to: e.id(),
                    type: "FinishToStart"
                }));
            }
            last = e.id();
            start = end;

        }

        dp.columns = [
            {
                title: "Name",
                width: 50,
                property: "text"
            },
            {
                title: "Info",
                width: 50,
                property: "info"
            },
            {
                title: "Duration",
                width: 50
            }
        ];

        dp.onBeforeRowHeaderRender = function (args) {
            var duration = args.task.duration();
            var html = duration.toString("d") + "d " + duration.toString("h") + "h";
            args.row.columns[2].html = html;
        };

        dp.separators = [
            {
                color: "red",
                location: DayPilot.Date.today().addDays(1),
                layer: "BelowEvents"
            }
        ];

        dp.init();

        const app = {
            init() {
                this.addEventHandlers();
            },
            addEventHandlers() {
                document.getElementById("export-button").addEventListener("click", (ev) => {
                    ev.preventDefault();
                    const area = document.getElementById("area").value;

                    const e = dp.exportAs("png", {area: area});

                    const element = e.toElement();
                    element.style.height = `${e.dimensions().height}px`;
                    element.style.width = `${e.dimensions().width}px`;

                    const exportElement = document.getElementById("export");
                    while (exportElement.firstChild) {
                        exportElement.firstChild.remove();
                    }
                    exportElement.appendChild(element);
                    return false;
                });

                document.getElementById("download-button").addEventListener("click", (ev) => {
                    ev.preventDefault();
                    const area = document.getElementById("area").value;
                    dp.exportAs("png", {area: area}).download();
                });
            }
        };
        app.init();