saving a file from stream to disk using c

Question

Possible Duplicate    How do I save a stream to a file        I have got a stream object which may be an image or file  msword  pdf   I have decided to handle both types very differently  as I may want to optimize  compress   resize   produce thumbnails etc  I call a specific method to save an image to disk  the code   var file   StreamObject     if content-type    jpeg  png  bmp do        Image  image   Image FromStream file        image Save path      if pdf  word do      How do I actually save word and pdfs     multimedia  video    I have looked  not hard enough probably  but I could not find it anywhere

User · Answer

if the data is already valid and already contains a pdf  word or image  then you could use a StreamWriter and save it

User · Answer

For file Type you can rely on FileExtentions and for writing it to disk you can use BinaryWriter  or a FileStream   Example  Assuming you already have a stream          FileStream fileStream   File Create fileFullPath   int stream Length      Initialize the bytes array with the stream length and then fill it with data byte   bytesInStream   new byte stream Length   stream Read bytesInStream  0  bytesInStream Length          Use write method to write to the file specified above fileStream Write bytesInStream  0  bytesInStream Length     Close the filestream fileStream Close

User · Answer

For the filestream     Check if the directory exists if   System IO Directory Exists   C  yourDirectory          System IO Directory CreateDirectory   C  yourDirectory         Write the file using  System IO StreamWriter outfile   new System IO StreamWriter   C  yourDirectory yourFile txt          outfile Write yourFileAsString

User · Answer

I have to quote Jon  the master of c   Skeet      Well  the easiest way would be to   open a file stream and then use       byte   data   memoryStream ToArray      fileStream Write data  0    data Length        That s relatively inefficient though    as it involves copying the buffer    It s fine for small streams  but for   huge amounts of data you should   consider using       fileStream Write memoryStream GetBuffer      0  memoryStream Position

User · Answer

Just do it with a simple filestream   var sr1   new FileStream FilePath  FileMode Create                   sr1 Write  UploadFile File  0   UploadFile File Length                   sr1 Close                    sr1 Dispose       UploadFile File is a byte    and in the FilePath you get to specify the file extention

User · Answer

If you are using  NET 4 0 or newer you can use this method   public static void CopyStream Stream input  Stream output        input CopyTo output       If not  use this one   public static void CopyStream Stream input  Stream output        byte   buffer   new byte 8   1024       int len      while    len   input Read buffer  0  buffer Length    gt  0                output Write buffer  0  len                 And here how to use it   using  FileStream output   File OpenWrite path         CopyStream input  output

[c#] saving a file (from stream) to disk using c#

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