I am uploading a document to sharepoint site using client object model.

using (FileStream fs = new FileStream(@"C:\temp\UlDoc.docx", FileMode.Open))
    File.SaveBinaryDirect(_cc, "/demo/Word%20Docs/temp.docx", stream, true);

The file is uploading to the site with same filename but it is getting corrupted (only 18kb) instead of the actual file size. Any help!


2 Answers 2


This is helper method to return the bytes form the stream. Please let me know if you face any issue with this code.

I am using the same code in SilverLight Application.

public static byte[] ReadFully(Stream input, long fileSize)

            //long fileSize = input.Length;

            byte[] buffer = new byte[fileSize];

            //   byte[] newArray = new byte[16 * 1024];
            using (MemoryStream ms = new MemoryStream())
                int read;
                while ((read = input.Read(buffer, 0, buffer.Length)) > 0)
                    ms.Write(buffer, 0, read);
                return ms.ToArray();

Use var localFile = new FileCreationInformation() for saving a file using client Object model.

List docs = context.Web.Lists.GetByTitle("test"); 
                var localFile = new FileCreationInformation(); 
                localFile.Content = ReadFully(_openFileDialog.File.OpenRead(),
                // localFile.Overwrite = true;

                string FileNameWithoutExtension = System.IO.Path.GetFileNameWithoutExtension(_openFileDialog.File.Name);

                string FileExtension = System.IO.Path.GetExtension(_openFileDialog.File.Name);

                    localFile.Overwrite = true; 
                    localFile.Url = System.IO.Path.GetFileName(_openFileDialog.File.Name);

                file = docs.RootFolder.Files.Add(localFile);
                text= file.ListItemAllFields;
                text["Title"] = file.Name;

                context.ExecuteQueryAsync(sucess, failed);
  • Thank you for the answer, I can see it will work as I had similar code already implemented to upload a file given a "local filepath" of the document. However I am trying to upload when a stream is passed (part of the requirement as I get a stream from Document automation app), and using "SaveBinaryDirect" as the above approach fails with large files (word documents).
    – Flowerking
    Apr 24, 2012 at 18:09
  • 1
    Increasing the Maximum Message Size msdn.microsoft.com/en-us/library/ff599489.aspx Apr 25, 2012 at 3:49
  • +1 For your effort, But I still prefer using SaveBinaryDirect as That is the problem here. Not any workarounds. Thank you.
    – Flowerking
    Apr 25, 2012 at 8:39

I believe that only the default buffer is loaded at maximum and that is why is corrupted. Try looping through the array as such :

FileStream fstream = File.OpenRead(<file_location_here>);
            byte[] content = new byte[fstream.Length];
            fstream.Read(content, 0, (int)fstream.Length);

Now the FileStream should have it all loaded.

use then an SPWeb previously opened and the method Add as in

using (SPSite _site= new SPSite("URL"))
 using (SPWeb _web = _site.OpenWeb()){
_web.Files.Add("<FULL LIB PATH>/<NAME OF THE FILE>", content);
  • Thank you for the reply, I have already tried reading the file stream the way you suggested, but it is saving a blank file instead of the actual file. And I cannot use SPWeb as I am using client object model and the upload is from client side.
    – Flowerking
    Apr 24, 2012 at 14:55
  • Oh, i didn't catch on the C-OM. There are valid example on how to upload it via OM (assuming Managed OM - right?). See here blogs.msdn.com/b/sridhara/archive/2010/03/12/… and here blog.isrichtig.de/Lists/Beitraege/… Apr 24, 2012 at 14:59
  • Nice links, thank you. I am exactly doing it as in the examples in your links, (you can see my code in the question). The only problem is corrupted document.
    – Flowerking
    Apr 24, 2012 at 15:06

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