Assembly: System (in system.dll)
To determine the number of bytes already sent, use the BytesSent property.
Uploading data to a server may result in a download from the server. For example, suppose your application uploads a POST request to a Web server. The resulting download will update BytesReceived and TotalBytesToReceive.
To determine what percentage of the transfer has occurred, use the ProgressPercentage property. When the upload is complete, ProgressPercentage will be 50%. When the download completes, ProgressPercentage will be 100%.
Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.