Trigger click event of input file from external button

21 Dec 20222 minutes to read

You can trigger the click event of input file from external button using click event of button. In the below sample, triggered click event of input file from Essential JavaScript 2 Button.

CSHTML

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

<div class="col-lg-8 control-section">
    <div class="control_wrapper">
        <!-- Initialize Uploader -->
        <div id="dropArea">
            <span id="drop"> Drop image (JPG, PNG) files here or <button class='e-btn e-control' id="browse">Browse</button></span>
        </div>
        <ejs-uploader id="UploadFiles" dropArea="#drop" asyncSettings="@asyncSettings">
        </ejs-uploader>
    </div>
</div>

<script>
    window.onload = function () {
        document.getElementById('browse').onclick = () => {
            document.getElementsByClassName('e-file-select-wrap')[0].querySelector('button').click();
        };
    }
</script>

Index.css

.control_wrapper {
        max-width: 500px;
        margin: auto;
    }
    #dropArea {
        border: 1px dashed #c3c3cc;
        text-align: center;
        padding: 20px 0 10px;
    }

    .e-file-select-wrap {
        display: none;
    }

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

NOTE

You can also explore ASP.NET Core File Upload feature tour page for its groundbreaking features. You can also explore our ASP.NET Core File Upload example to understand how to browse the files which you want to upload to the server.