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I have been trying to use the appendAllText functionality of the SftpClient to append two .docx files. The steps I perform in sequence are -
I create a .docx file with some content "First docx".
I create another .docx file with the content "Second docx".
I read the second .docx file in bytes and then tried to append the content to the first file by providing the path of the first file. The issue is when I perform the append using the AppendAllText functionality, I end up corrupting the first docx file. It works well for file types such as .txt or .log but for complex file types such as .docx etc it fails.
The second alternative I am trying is to open the file in a SftpFileStream using the sftpClient.Open method.
I open the file in the FileMode.Append mode and provide the file access as FileAccess.Write, which returns a SftpFileStream.
I open the second Docx file in a memoryStream using using (var memoryStream = new MemoryStream(byteArrContent)) and use await memoryStream.CopyToAsync(sftpFileStream) to copy the bytes of the second docx to the first one. It also ends up corrupting the docx file.
I wanted to know if append functionality is not supported for such file types, or If I am missing something.
The text was updated successfully, but these errors were encountered:
AppendAllText is not aware about file types. It is just appending the bytes of the input to the bytes of the file. I imagine you would get the same result with System.IO.File.AppendAllText.
I have two scenarios to consider.
appendAllText
functionality of the SftpClient to append two .docx files. The steps I perform in sequence are -FileMode.Append
mode and provide the file access asFileAccess.Write
, which returns a SftpFileStream.using (var memoryStream = new MemoryStream(byteArrContent))
and useawait memoryStream.CopyToAsync(sftpFileStream)
to copy the bytes of the second docx to the first one. It also ends up corrupting the docx file.I wanted to know if append functionality is not supported for such file types, or If I am missing something.
The text was updated successfully, but these errors were encountered: