PowUpload 1.3 control documentation

PowUpload is an ASP.NET control that enables an ASP.NET application to capture and save files uploaded to the web server by a browser. PowUpload is fully compatible with the standard files upload protocol defined in RFC1867 for the HTML POST Form with the <INPUT TYPE=FILE> tags.

PowUpload handles and stores the contents of the POST request to a file on the server hard disk rather than loading it into memory as the built-in ASP.NET upload support does. PowUpload provides rich server-side progress indicator that lets users to monitor the progress of their uploads.

Features list:

• Uploads up to 4 GB files (limited by IIS) without in-memory caching of requests. This feature allows you to upload of large files to a server with the low load of RAM and to saved from “System.OutOfMemoryException” error.
• Provides rich progress and status information during the upload process.
• Includes free license of Flash multiple files upload control called MultiPowUpload 1.7.1
• Resumable upload (PowUpload supports PUT method defined in W3C RFC 2616 that is specialy designed to upload files.
  PUT method allows resumable upload which PowUpload also supports)
• 100% Server-side control. Does not require installation on the user computer.
• Compatible with any browser and OS on the user side.
• Compatible with SSL (HTTPS) and any kind of authentication.
• Unicode file names and form values support.
• Image size and type extraction functionality.
• Possibility to cancel an upload anytime with saving fully uploaded files.
• Stores non file items of the form in own collection or in the built-in ASP.NET collection Request.Form.
• The Classes of the control has properties and methods with the same signature as in the built-in ASP.NET Request.Files collection. This gives you an opportunity to simply replace the built-in ASP.NET upload support with our one or use simultaneously the both.
• Fully Managed code and CLS compliant.
• Supports multiple files upload from multiple users at the same time.
• Upload speed limit.
• Independent of httpRuntime maxRequestLength parameter.
• Allows to terminate connection any time or if too large file uploaded.
• Access to uploaded Form variables and files while uploading.
• Includes HttpHandler that allows to do any your custom actions while upload
• Includes sample of HttpHandler that redictly saves files to SQL database.
• Settings can be set in Web.Config or while runtime: common or for individual request.
• Includes example of Progress bar without Page postbacks (AJAX technology)
• Example of extracting ZIP archives on server side. So clients can upload multiple files, folders and large folders structures.
• Easy installation with the help of setup.exe or by copying the Element-IT.PowUpload.dll file to the Bin\ folder of your application.
• Examples of use in C Sharp and VB.Net with a code behind or without.
• Includes an open source example of the file download feature without memory leak on the server.

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