Print and Export in ASP.NET Core Linear Gauge

21 Dec 20228 minutes to read

Print

The rendered Linear Gauge can be printed directly from the browser by calling the print method. To use the print functionality, set the AllowPrint property as true.

CSHTML

@using Syncfusion.EJ2;

<div id="container">
    <button id="print">Print</button>
        <ejs-lineargauge id="gauge" load="gaugeLoad" allowPrint="true" orientation="Horizontal">
            <e-lineargauge-axes>
                <e-lineargauge-axis minimum="0" maximum="120">
                </e-lineargauge-axis>
            </e-lineargauge-axes>
      </ejs-lineargauge>
</div>
<script>
    window.gaugeLoad = function (args) {
        window.gauge = args.gauge;
    }
    window.onload = function () {
        document.getElementById("print").onclick = () => {
            window.gauge.print();
        };
    };
</script>

Print.cs

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using EJ2_Core_Application.Models;
using Newtonsoft.Json;
using Syncfusion.EJ2.Charts;
using Syncfusion.EJ2.LinearGauge;


namespace EJ2_Core_Application.Controllers
{
    public class HomeController : Controller
    {
        public IActionResult Index()
        {
            return View();
        }
    }
}

Export

Image Export

To use the image export functionality, set the AllowImageExport property as true. The rendered Linear Gauge can be exported as an image using the export method. This method requires two parameters: export type and file name. The Linear Gauge can be exported as an image with the following formats.

• JPEG
• PNG
• PDF

CSHTML

@using Syncfusion.EJ2;

<div id="container">
    <button id="export">Export</button>
        <ejs-lineargauge id="gauge" load="gaugeLoad" allowImageExport="true" orientation="Horizontal">
            <e-lineargauge-axes>
                <e-lineargauge-axis minimum="0" maximum="120">
                </e-lineargauge-axis>
            </e-lineargauge-axes>
      </ejs-lineargauge>
</div>
<script>
    window.gaugeLoad = function (args) {
        window.gauge = args.gauge;
    }
    window.onload = function () {
        document.getElementById("export").onclick = () => {
            window.gauge.export('PNG', 'LinearGauge');
        };
    };
</script>

Export.cs

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using EJ2_Core_Application.Models;
using Newtonsoft.Json;
using Syncfusion.EJ2.Charts;
using Syncfusion.EJ2.LinearGauge;


namespace EJ2_Core_Application.Controllers
{
    public class HomeController : Controller
    {
        public IActionResult Index()
        {
            return View();
        }
    }
}

PDF Export

To use the PDF export functionality, set the AllowPdfExport property as true. The rendered Linear Gauge can be exported as PDF using the export method. The export method requires three parameters: file type, file name, and orientation of the PDF document. The orientation of the PDF document can be set as Portrait or Landscape.

CSHTML

@using Syncfusion.EJ2;

<div id="container">
    <button id="export">Export</button>
        <ejs-lineargauge id="gauge" load="gaugeLoad" allowPdfExport="true" orientation="Horizontal">
            <e-lineargauge-axes>
                <e-lineargauge-axis minimum="0" maximum="120">
                </e-lineargauge-axis>
            </e-lineargauge-axes>
      </ejs-lineargauge>
</div>
<script>
    window.gaugeLoad = function (args) {
        window.gauge = args.gauge;
    }
    window.onload = function () {
        document.getElementById("export").onclick = () => {
            window.gauge.export('PDF', 'LinearGauge', 0);
        };
    };
</script>

Exporting Linear Gauge as base64 string of the file

The Linear Gauge can be exported as base64 string for the JPEG, PNG and PDF formats. The rendered Linear Gauge can be exported as base64 string of the exported image or PDF document used in the export method. The arguments that are required for this method is export type, file name, orientation of the exported PDF document and allowDownload boolean value that is set as false to return base64 string. The value for the orientation of the exported PDF document is set as null for image export and Portrait or Landscape for the PDF document.

CSHTML

@using Syncfusion.EJ2;

<div id="container">
    <button id="export">Export</button>
        <ejs-lineargauge id="gauge" Load="gaugeLoad" AllowImageExport="true" Orientation="Horizontal">
            <e-lineargauge-axes>
                <e-lineargauge-axis Minimum="0" Maximum="120">
                </e-lineargauge-axis>
            </e-lineargauge-axes>
      </ejs-lineargauge>
</div>
<script>
    window.gaugeLoad = function (args) {
        window.gauge = args.gauge;
    }
    window.onload = function () {
        document.getElementById("export").onclick = () => {
            window.gauge.export('JPEG', 'LinearGauge', null, false).then((data) => {
                let base64 = data;
                document.writeln(base64);
            });
        };
    };
</script>

NOTE

The exporting of the Linear Gauge as base64 string is not applicable for the SVG format.