Achieve File Upload Programmatically in ASP.NET Core Uploader control

05 May 2021 / 1 minute to read

You can upload a file programmatically using upload method. The selected files data, get from getFilesData public method in uploader.

The upload method behaves differently based on its arguments.

If this method receives any files as arguments, those files only start to upload.
If it has no argument then all the selected files are will start to upload.

tagHelper

dynamic-upload.cs

index.css

@{
    var asyncSettings = new Syncfusion.EJ2.Inputs.UploaderAsyncSettings { SaveUrl = "https://ej2.syncfusion.com/services/api/uploadbox/Save", RemoveUrl = "https://ej2.syncfusion.com/services/api/uploadbox/Remove" };
}

<div class="col-lg-8 control-section">
    <div class="control_wrapper">
        <ejs-uploader id="UploadFiles" asyncSettings="@asyncSettings" autoUpload="false">
        </ejs-uploader>
    </div>
    <span style=' padding-left: 40px; margin-top: 30px'>
        <button id='first' class='e-btn e-control'>Upload 0th File</button>
    </span>
    <span style=' padding-left: 40px; margin-top: 30px'>
        <button id='full' class='e-btn e-control'>Upload All Files</button>
    </span>
</div>

<script>
    window.onload = function () {
        var uploadObj = document.getElementById("UploadFiles").ej2_instances[0];
        document.getElementById('first').onclick = (args) => {
            uploadObj.upload(uploadObj.getFilesData()[0]);
        };

        document.getElementById('full').onclick = (args) => {
            uploadObj.upload(uploadObj.getFilesData());
        };
    }
</script>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;

namespace EJ2CoreSampleBrowser.Controllers.TextBoxes
{
    public partial class UploaderController : Controller
    {
        public ActionResult DefaultFunctionalities()
        {
            
            return View();
        }
    }
}

.control_wrapper {
    max-width: 500px;
    margin: auto;
}

.e-upload {
    width: 100%;
    position: relative;
    margin-top: 15px;
    margin-bottom: 15px;
}

.e-upload-actions {
    display: none;
}

.e-btn {
    text-transform: none;
}

.control_wrapper .e-upload .e-upload-drag-hover {
    margin: 0;
}