Stream from GetContentAsStreamAsync with Exceptions

Andriy V.

Hello! I can't understand what I'm doing wrong. After calling GetContentAsStreamAsync method I get stream as a result, but this stream contains Lenght and Position properties with such exception: Length = '((System.Net.Http.DelegatingStream)data).Length' threw an exception of type 'System.NotSupportedException'.

Qiming Y.

Hi Andriy,

Length and Position are available only if CanSeek property of the stream is true and not all stream supports seeking (FileStream and MemoryStream can seek but NetworkStream cannot). You shouldn't make the assumption that the stream returned by GetContentAsStreamAsync supports seeking.