SharePoint：如何以編程方式將附件添加到列表項？

Question

我有以下代碼：

  SPList list = web.Lists[this.ListName];
  SPListItem item = list.Items.Add();

現在我想做的是：

   FileInfo[] attachments = attachmentDirectory.GetFiles();
        foreach (FileInfo attachment in attachments)
        {
           // Add the attachment from file system to the list item...

        }

如何將普通文件轉換為字節數組？

Answer 1

 foreach (FileInfo attachment in attachments)
        {
            FileStream fs = new FileStream(attachment.FullName , FileMode.Open,FileAccess.Read);

            // Create a byte array of file stream length
            byte[] ImageData = new byte[fs.Length];

            //Read block of bytes from stream into the byte array
            fs.Read(ImageData,0,System.Convert.ToInt32(fs.Length));

            //Close the File Stream
            fs.Close();

            item.Attachments.Add(attachment.Name, ImageData); 


        }

Answer 2

也許這會指向一個有用的方向：

http://msdn.microsoft.com/en-us/library/microsoft.sharepoint.spattachmentcollection.aspx

這也許會有所幫助

http://msdn.microsoft.com/en-us/library/lists.lists.addattachment.aspx