How to use Microsoft.SharePoint.Client.File.SaveBinary method?

Question

I want to save a file from document library to local drive. I am using the Client Object model approach model in development. The following is the code that I use:

processSheet.SaveBinary(FileSaveBinaryInformation);

But I am not able to understand what is to be passed as a parameter of the type

FileSaveBinaryInformation

Note: processSheet is the type of

Microsoft.SharePoint.Client.File

Please guide.

Answer 1

Save document library file to local file system using CSOM.

using (var clientContext = new ClientContext(url))
{

     var list = clientContext.Web.Lists.GetByTitle(listTitle);
     var listItem = list.GetItemById(listItemId);
     clientContext.Load(list);
     clientContext.Load(listItem, i => i.File);
     clientContext.ExecuteQuery();


     var fileRef = listItem.File.ServerRelativeUrl;
     var filePath = "C:/";
     var fileInfo = Microsoft.SharePoint.Client.File.OpenBinaryDirect(clientContext, fileRef);
     var fileName = Path.Combine(filePath,(string)listItem.File.Name);
     using (var fileStream = System.IO.File.Create(fileName))
     {                  
          fileInfo.Stream.CopyTo(fileStream);
     }
}

Answer 2

Answered here. used Microsoft.SharePoint.Client.File.SaveBinaryDirect https://stackoverflow.com/questions/17057074/how-to-download-upload-files-from-to-sharepoint-2013-using-csom

Answer 3

You need to pass stream of Bytes or Byte array which you are supposed to save to the file.