RadControls for ASP.NET AJAX
You can use the RadUpload and RadProgressManager components, separately or together, to enhance your application's ability to upload files. When using RadProgressManager, you can also use RadProgressArea to display a progress dialog for lengthy uploads.
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Memory optimization now relies on the default .NET Framework 2.0+ engine. This means that the server memory is not overloaded when uploading large files.
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RadProgressManager
RadProgressManager is required for enabling the progress monitoring of RadProgressArea.
In order to use RadProgressManager, you must configure your application using the Web.config file. There are two settings you should register:
By default, you can upload files which size is up to 4MB. You can, however, configure your application for large uploads, to allow up to 2GB.
RadUpload
RadUpload offers several advantages over standard file input controls, including
Limitations