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Achieve Invisible Upload in Vue Uploader component

You can achieve the invisible upload feature by using selected event in uploader component. In the following example, explains how to achieve invisible upload in uploader component.

Source
Preview
app.vue
<template>
  <div>
  <div id='preview'></div>
    <ejs-uploader ref="uploadObj" id='defaultfileupload' name="UploadFiles" :selected = "onupload" :autoUpload= "autoUpload" :asyncSettings= "path" :allowedExtensions = "extensions" ></ejs-uploader>
  </div>
</template>
<script>
import Vue from 'vue';
import { UploaderPlugin, SelectedEventArgs } from '@syncfusion/ej2-vue-inputs';
import { createElement, detach, EventHandler } from '@syncfusion/ej2-base';
Vue.use(UploaderPlugin);

export default {
  data: function(){
        return {
          path:  {
            saveUrl: 'https://ej2.syncfusion.com/services/api/uploadbox/Save',
            removeUrl: 'https://ej2.syncfusion.com/services/api/uploadbox/Remove'
          },
          extensions: '.png, .jpg, .jpeg',
          autoUpload: false
        }
    },
    methods: {
        onupload:function(args: SelectedEventArgs){
    for(let i = 0; i< args.filesData.length ; i++){
        let liparentDiv = createElement('div',  { className: 'image-list'});
        let liImage = createElement('img',  { className: 'image'});
        liparentDiv.appendChild(liImage);
        this.readURL(liImage, args.filesData[i]);
        document.getElementById('preview').appendChild(liparentDiv);
    }
    args.cancel=true;
},

 readURL: function(liImage: HTMLElement, file: any) {
    let imgPreview: HTMLImageElement = liImage as HTMLImageElement;
    let imageFile: File = file.rawFile;
    let reader: FileReader = new FileReader();
    reader.addEventListener( 'load', () => {
        imgPreview.src = reader.result;
    }, false);
    if (imageFile) {
        reader.readAsDataURL(imageFile);
    }
};
    }
}
</script>
<style>
@import "../../node_modules/@syncfusion/ej2-base/styles/material.css";
@import "../../node_modules/@syncfusion/ej2-buttons/styles/material.css";
@import "../../node_modules/@syncfusion/ej2-vue-inputs/styles/material.css";
 #container {
        visibility: hidden;
        padding-left: 5%;
        width: 100%;
    }
    #loader {
        color: #008cff;
        font-family: 'Helvetica Neue','calibiri';
        font-size: 14px;
        height: 40px;
        left: 45%;
        position: absolute;
        top: 45%;
        width: 30%;
    }
    #preview {
  border: 2px dashed #ddd;
  padding: 15px;
}

.image-list {
  width: 134px;
  height: 117px;
  margin-right: 4px;
  border: 1px solid lightgrey;
  display: inline-block;
}

.image {
  width: 134px;
  height: 117px;
  margin-right: 4px;
  display: inline-block;
}

.e-control {
  border : 0;
}

.e-control ul {
  border: 1px solid #ddd;
}

.e-control .e-file-select,
.e-control .e-file-drop {
  display: none;
}

.e-upload.e-lib.e-keyboard {
  margin-top: 20px;
}
</style>