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Paste to upload

The uploader component allows you to upload the files using the select or drop files option from the file explorer. It also supports pasting to upload the image files. You can upload any currently copied images in the clipboard.

When you paste the image, it will be saved in the server with the filename as image.png. The file name can be renamed in the server end. You can generate a random name for the file name using getUniqueID method. Refer to the following example.

Source
Preview
index.js
index.html
// initialize Uploader component
var uploadObject = new ej.inputs.Uploader({
    // disable the auto upload functionalities
    autoUpload: false
});

// render initialized Uploader
uploadObject.appendTo('#fileupload');
<!DOCTYPE html><html lang="en"><head>
    <title>Essential JS 2 Uploader</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Essential JS 2 Uploader Component">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-base/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-inputs/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-popups/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-buttons/styles/material.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/dist/ej2.min.js" type="text/javascript"></script>
</head>
<body>
    
        <div id="container">
            <input type="file" id="fileupload" name="UploadFiles">
        </div>
    

<script>
var ele = document.getElementById('container');
if(ele) {
    ele.style.visibility = "visible";
 }   
        </script>
<script src="index.js" type="text/javascript"></script>
</body></html>

Save action for paste to upload

public void Save() {
    var httpPostedFile = HttpContext.Current.Request.Files["UploadFiles"];
    var fileSave = HttpContext.Current.Server.MapPath("UploadedFiles");
    var fileSavePath = Path.Combine(fileSave, httpPostedFile.FileName);
    if (!System.IO.File.Exists(fileSavePath))
    {
        httpPostedFile.SaveAs(fileSavePath);
        // Get the current file name
        var oldName = httpPostedFile.FileName;
        // Get the additional data as name in server end by corresponding key.
        var newName = HttpContext.Current.Request.Form["fileName"];
        // Rename the file
        File.Move(oldName, newName);
        HttpResponse Response = System.Web.HttpContext.Current.Response;
        Response.Clear();
        Response.ContentType = "application/json; charset=utf-8";
        // Sending the file path to client side
        Response.StatusDescription = fileSavePath;
        Response.End();
    }
}

Directory upload

The uploader component allows you to upload all files in the folders to server by using the directoryUpload property. When this property is enabled, the uploader component processes the files by iterating through the files and sub-directories in a directory. It allows you to select only folders instead of files to upload.

The directory upload is available only in browsers that supports HTML5 directory. The uploader will process directory upload by dragging and dropping in the Edge browser. Refer to the following example to upload files to the server.

Source
Preview
index.js
index.html
// initialize Uploader component
    var uploadObject = new ej.inputs.Uploader({
        asyncSettings: {
            saveUrl: 'https://aspnetmvc.syncfusion.com/services/api/uploadbox/Save',
            removeUrl: 'https://aspnetmvc.syncfusion.com/services/api/uploadbox/Remove'
        },
        directoryUpload: true
    });
    // render initialized Uploader
    uploadObject.appendTo('#fileupload');
<!DOCTYPE html><html lang="en"><head>
    <title>Essential JS 2 Uploader</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Essential JS 2 Uploader Component">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-base/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-inputs/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-popups/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-buttons/styles/material.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/dist/ej2.min.js" type="text/javascript"></script>
</head>
<body>
    
        <div id="container">
            <input type="file" id="fileupload" name="UploadFiles">
        </div>
    

<script>
var ele = document.getElementById('container');
if(ele) {
    ele.style.visibility = "visible";
 }   
        </script>
<script src="index.js" type="text/javascript"></script>
</body></html>

Save action for directory upload

public void Save() {
    var httpPostedFile = HttpContext.Current.Request.Files["UploadFiles"];
    var fileSave = HttpContext.Current.Server.MapPath("UploadedFiles");
    // split the folders by using file name
    string[] folders = httpPostedFile.FileName.Split('/');
    string fileSavePath = "";
    if (folders.Length > 1)
    {
        for (var i = 0; i < folders.Length - 1; i++)
        {
            var newFolder = Path.Combine(fileSave, folders[i]);
            // create folder
            Directory.CreateDirectory(newFolder);
            fileSave = newFolder;
        }
        fileSavePath = Path.Combine(fileSave, folders[folders.Length - 1]);
    }
    else
    {
        fileSavePath = Path.Combine(fileSave, httpPostedFile.FileName);
    }
    if (!System.IO.File.Exists(fileSavePath))
    {
        // save file in the corresponding server location
        httpPostedFile.SaveAs(fileSavePath);
        HttpResponse Response = System.Web.HttpContext.Current.Response;
        Response.Clear();
        Response.ContentType = "application/json; charset=utf-8";
        // Sending the file path to client side
        Response.StatusDescription = fileSavePath;
        Response.End();
    }
}

Drag and drop

The uploader component allows you to drag and drop the files to upload. You can drag the files from file explorer and drop into the drop area. By default, the uploader component act as drop area element. The drop area gets highlighted when you drag the files over drop area.

Custom drop area

The uploader component allows you to set external target element as drop area using the dropArea property. The element can be represented as HTML element or element’s id.

Source
Preview
index.html
index.css
<!DOCTYPE html><html lang="en"><head>
    <title>Essential JS 2 Uploader</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Essential JS 2 Uploader Component">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-base/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-inputs/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-popups/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-buttons/styles/material.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/dist/ej2.min.js" type="text/javascript"></script>
</head>
<body>
    
    <div id="container" style="width: 90%">
        <div id="droparea">
            Drop files here to upload
        </div>
        <div id="uploadfile">
            <input type="file" id="fileupload" name="UploadFiles">
        </div>
    </div>

<script>
var ele = document.getElementById('container');
if(ele) {
    ele.style.visibility = "visible";
 }   
        </script>
<script src="index.js" type="text/javascript"></script>
</body></html>
#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%;
}
.fileupload {
  margin: 20px auto;
  width: 400px;
}
#droparea {
  padding: 50px 25px;
  margin: 30px auto;
  border: 1px solid #c3c3c3;
  text-align: center;
  width: 20%;
  display: inline-flex;
}
.e-file-select,
.e-file-drop {
  display: none;
}
body .e-upload-drag-hover {
  outline: 2px dashed brown;
}
#uploadfile {  
  width: 60%;
  display: inline-flex;
  margin-left: 5%;
}

Customize drop area

You can customize the appearance of drop area by overriding the default drop area styles. The class “” and “” is available to handle this customization.

Source
Preview
index.js
index.html
index.css
var uploadObject = new ej.inputs.Uploader({
        asyncSettings: {
            saveUrl: 'https://aspnetmvc.syncfusion.com/services/api/uploadbox/Save',
            removeUrl: 'https://aspnetmvc.syncfusion.com/services/api/uploadbox/Remove'
        },
        dropArea: document.getElementById('droparea')
    });
    // render initialized Uploader
    uploadObject.appendTo('#fileupload');
    document.getElementById('browse').onclick = function () {
        document.getElementsByClassName('e-file-select-wrap')[0].querySelector('button').click();
        return false;
    };
<!DOCTYPE html><html lang="en"><head>
    <title>Essential JS 2 Uploader</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Essential JS 2 Uploader Component">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-base/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-inputs/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-popups/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-buttons/styles/material.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/dist/ej2.min.js" type="text/javascript"></script>
</head>
<body>
    
    <div id="container">
        <div id="dropArea" style="height: auto; overflow: auto">
            <span id="drop"> Drop files here or <a href id="browse"><u>Browse</u></a> </span>
            <input type="file" id="fileupload">
        </div>
      </div>
    

<script>
var ele = document.getElementById('container');
if(ele) {
    ele.style.visibility = "visible";
 }   
        </script>
<script src="index.js" type="text/javascript"></script>
</body></html>
#container {
  visibility: hidden;
}
#loader {
  color: #008cff;
  font-family: 'Helvetica Neue','calibiri';
  font-size: 14px;
  height: 40px;
  left: 45%;
  position: absolute;
  top: 45%;
  width: 30%;
}
.e-file-select-wrap {
    display: none;
}
#dropArea .e-upload {
    border: 0;
    margin-top: 15px;
}
#drop {
    padding-left: 30%;
}
#dropArea {
    min-height: 18px;
    border: 1px dashed #c3c3cc;
    padding-top: 15px;
    margin: 20px auto;
    width: 400px;
}

See Also