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title page_title description slug tags published position CTAControlName
Overview
RadCloudUpload Overview
Check our Web Forms article about Telerik's ASP.NET CloudUpload Overview.
cloudupload/overview
overview, cloudupload, asp.net
true
0
CloudUpload

WebForms CloudUpload Overview

General Information

RadCloudUpload provides the ability to upload files directly to Cloud Storage Providers - AmazonS3 and Azure. The upload workflow is as follows: the file, which is about to be uploaded is initially processed to a handler and the handler uploads the file to the specified storage provider (files are not stored on the server's hard drive).

{% if site.has_cta_panels == true %} {% include cta-panel-overview.html %} {% endif %}

The main built-in features of RadCloudUpload include:

  • Validation

  • Multiple File Selection

  • Progress Monitoring

  • Custom Events

The files are passed to a Handler with a single request or on chunks. The predefined chunk sizes for the Amazon and Azure storage providers are respectively- 5MB and 2MB. If the browser supports FileAPI, the control will create a module based on its functionality, otherwise it will use the iFrame module (e.g. IE9, IE8, IE7, IE6 will use iFrame module).

Erasure Process

RadCloudUpload is configured to use a callback mechanism - to delete the uploaded files from the Storage Provider if they are not processed after a PostBack. For example, when a file is uploaded, it could be removed from the uploaded files collection, when the “Remove” button is clicked. In this case, its record from the client state is removed and after a certain time the callback (triggered from the cache of the application) will remove it from the storage.

Cloud Storage Providers

  • [ AmazonS3 ]({%slug cloudupload/cloud-storage-providers/amazon-s3%})

  • [ Azure ]({%slug cloudupload/cloud-storage-providers/azure-blob-storage%})

See Also