.NET technology

• Created with Microsoft Silverlight, will be updated for future versions of Silverlight as they become available.
• Written entirely in C#.
• Complete source code is available in the Blueprint Edition.
• Based on a flexible and extensible object model.
• Comprehensive documentation fully integrated into Visual Studio is provided.
• Includes a variety of VB.NET, C#, and JavaScript sample applications to get you started.

Major Features

• Lets you quickly and easily add multi-file upload capabilities to any Microsoft Silverlight application. Upload images and other files directly from Silverlight-hosting Web pages.
• All upload operations are asynchronous, so the hosting Web page remains perfectly responsive and usable throughout the transfer.
• Uploaders can process multiple files a single transaction.
• Uploading field contents and strings from your Silverlight forms to the Web server is simple: fields are automatically gathered and formatted into a standard request.
• Helps you deliver a beautiful Silverlight experience to your end-users, such as displaying progress information.
• Lets you compress data as it is being uploaded. Supports GZip and Deflate, with controllable compression level.
• Rich events let your application monitor and control every step of an upload operation.
• Several versions of the upload methods are provided: from simple “fire-and-forget” versions to ones letting you control everything. Static and instance versions let you use the component to suit your needs.
• Uploads can be deferred, letting your application gather files and strings and then perform the actual transfer when ready.
• The HTTP requests produced by the component use the standard MIME format for uploading data through the “multipart/form-data” content type, meaning any modern Web server should be able to handle the data.
• Custom HTTP request headers (main and item headers) can be set.
• The boundary used in the HTTP request can be specified.
• Base64 encoding is available to support Web browsers that do not allow the upload of non-ASCII data.
• An alternative to ASP.NET and AJAX.

Included helper server classes

• Xceed Http Server Tools for ASP.NET is provided to help deal with compressed/encoded data.
• The UploadedFile and UploadedFiles classes seamlessly handle compressed/encoded files: because these classes are based on the FileSystem Core, they make dealing with such files as easy as working with regular files.
• The UploadedString class helps simplify handling compressed/encoded strings.

Other features

• Client-side execution: no server-side component or code required if compression or encoding isn’t used.
• Tested with IIS, but is compatible with any HTTP 1.1 standards-compliant Web server.
• Does not trigger a page refresh during or after an upload.
• Supports Unicode filenames.
• Supports Windows Vista, Windows XP SP2, Windows 2000, and Windows Server 2003 (except IA-64), and runs in Internet Explorer 7 and 6, Firefox 2 and 1.5, and Safari (Mac OS 10.4.8+ only). Some OS/browser combinations are not supported by Silverlight.