Can anyone post some sample code that shows how to zip to a stream & save the stream to a table in a database? Thanks...
", "PostedDate": "2010-01-07T11:39:51.52-08:00", "UserRole": null, "MarkedAsAnswerDate": null }, { "Id": "274470", "ThreadId": "80098", "Html": "Saving to a MemoryStream is easy, right? You just call zip.Save(memorystream), then you have the zipped content in the memorystream.
\r\nusing (var ms = new MemoryStream())\r\n{\r\n using (var zip = new ZipFile())\r\n {\r\n zip.AddFile(...);\r\n zip.AddEntry(...);\r\n zip.Save(ms);\r\n }\r\n byte[] data = ms.ToArray();\r\n // upload this byte[] to the database.\r\n}\r\n\r\n
Uploading to a database is also not too complicated. Here's a nice article.
\r\nInstead of declaring a byte[] and filling it with data from the filesystem, as is done in that article, you just use MemoryStream.ToArray(), which returns a byte array of the zipped content.
\r\n\r\n
using (SqlConnection Conn = new SqlConnection(ConnectionString))\r\n{ \r\n try\r\n { \r\n const string SQL = "INSERT INTO [BinaryTable] ([FileName], [DateTimeUploaded], [MIME], [BinaryData]) VALUES (@FileName, @DateTimeUploaded, @MIME, @BinaryData)";\r\n SqlCommand cmd = new SqlCommand(SQL, Conn);\r\n cmd.Parameters.AddWithValue("@FileName", "Name-of-file-in-database.zip");\r\n cmd.Parameters.AddWithValue("@MIME", fileType);\r\n cmd.Parameters.AddWithValue("@BinaryData", data);\r\n cmd.Parameters.AddWithValue("@DateTimeUploaded", DateTime.Now);\r\n Conn.Open();\r\n cmd.ExecuteNonQuery();\r\n Conn.Close();\r\n }\r\n catch\r\n { \r\n Conn.Close();\r\n }\r\n} \r\n\r\n\r\n
Thanks, I will give it a try...
", "PostedDate": "2010-01-07T13:01:25.75-08:00", "UserRole": null, "MarkedAsAnswerDate": null }, { "Id": "413533", "ThreadId": "80098", "Html": "Is it possible to use this method but instead of uploading to a SQL-server, upload to a Webserver with WebClient.DataUpload()?
\r\nI tried to do it yeasterday, but my script on the webserver can't find any files in the POST request, it works great when doing a regular.save() and WebClient.UploadFile(), but it would be better to upload the memorystream directly.
\r\n\r\n
", "PostedDate": "2010-03-02T23:48:03.633-08:00", "UserRole": null, "MarkedAsAnswerDate": null }, { "Id": "413771", "ThreadId": "80098", "Html": "
| \r\n Yes, you will be able to upload a MemoryStream with WebClient.UploadData(). A common problem is that people don't remember to reset the cursor in the MemoryStream, after writing and before reading. If you don't reset the cursor (via MemoryStream.Position = 0, or MemoryStream.Seek(0, SeekOrigin.Begin)) then the call to UploadData will get no data. This has nothing to do with zip files. It's just how the MemoryStream works. \r\n\r\n | \r\n