Agent-readable demo data

Title

PNG Image Export (JavaScript Scheduler) | DayPilot Pro for JavaScript Demo

Tree

DayPilot JavaScript Demo

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Description

Read more about client-side PNG export.

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

Inline demo script 1

const dp = new DayPilot.Scheduler("dp", {
            startDate: "2026-01-01",
            days: 365,
            scale: "Day",
            timeHeaders: [
                {groupBy: "Month", format: "MMMM yyyy"},
                {groupBy: "Cell", format: "d"}
            ],
            treeEnabled: true,
            resources: [
                {
                    name: "Locations", id: "G1", expanded: true, children: [
                        {name: "Room 1", id: "A"},
                        {name: "Room 2", id: "B"},
                        {name: "Room 3", id: "C"},
                        {name: "Room 4", id: "D"}
                    ]
                },
                {
                    name: "People", id: "G2", expanded: true, children: [
                        {name: "Person 1", id: "E"},
                        {name: "Person 2", id: "F"},
                        {name: "Person 3", id: "G"},
                        {name: "Person 4", id: "H"}
                    ]
                },
                {
                    name: "Tools", id: "G3", expanded: true, children: [
                        {name: "Tool 1", id: "I"},
                        {name: "Tool 2", id: "J"},
                        {name: "Tool 3", id: "K"},
                        {name: "Tool 4", id: "L"}
                    ]
                },
            ],
            height: 300,
            onTimeRangeSelected: async args => {
                const modal = await DayPilot.Modal.prompt("New event name:", "Event");
                dp.clearSelection();
                if (modal.canceled) {
                    return;
                }
                dp.events.add({
                    start: args.start,
                    end: args.end,
                    id: DayPilot.guid(),
                    resource: args.resource,
                    text: modal.result
                });
                dp.message("Created");
            },
        });
        dp.init();

        const app = {
            elements: {
                exportButton: document.querySelector("#export-button"),
                downloadButton: document.querySelector("#download-button"),
                export: document.querySelector("#export"),
                area: document.querySelector("#area"),
            },
            init() {
                this.addEventHandlers();
                this.loadEventData();
            },
            loadEventData() {
                // generate and load events
                const events = [];

                for (let i = 0; i < 15; i++) {
                    const duration = Math.floor(Math.random() * 6) + 1; // 1 to 6
                    const durationDays = Math.floor(Math.random() * 6 + 2); // 2 to 7
                    const start = Math.floor(Math.random() * 6) + 2; // 2 to 7

                    const resId = String.fromCharCode(65 + i);

                    const event = {
                        start: new DayPilot.Date("2026-01-01T00:00:00").addDays(start),
                        end: new DayPilot.Date("2026-01-01T12:00:00").addDays(start).addDays(durationDays).addHours(duration),
                        id: DayPilot.guid(),
                        resource: resId,
                        text: `Event ${i + 1}`
                    };

                    events.push(event);
                }
                dp.update({events});
            },
            addEventHandlers() {
                this.elements.exportButton.addEventListener("click", (ev) => {
                    ev.preventDefault();
                    const area = this.elements.area.value;
                    const element = dp.exportAs("png", {
                        area: area,
                        dateFrom: "2026-03-01",
                        dateTo: "2026-03-31",
                        resourceFrom: "A",
                        resourceTo: "D"
                    }).toElement();
                    this.elements.export.innerHTML = "";
                    this.elements.export.appendChild(element);
                });

                this.elements.downloadButton.addEventListener("click", (ev) => {
                    ev.preventDefault();
                    const area = this.elements.area.value;
                    dp.exportAs("png", {
                        area: area,
                        dateFrom: "2026-03-01",
                        dateTo: "2026-03-31",
                        resourceFrom: "A",
                        resourceTo: "D"
                    }).download();
                });

            }
        };
        app.init();