Duplicate this code using a different method

I've been Googling for half a day and I still don't know how to do this...

This works but I save the file in the database and I need to read it back from database into stream.

1. I use RadUpload to read the file content and save the file in database and encrypt it.
 

if (RadUpload1.UploadedFiles.Count > 0)
                {
                    foreach (UploadedFile file in RadUpload1.UploadedFiles)
                    {
                         byte[] bytes = new byte[file.ContentLength];
                        file.InputStream.Read(bytes, 0, file.ContentLength);
                       ...
                      //save in databse

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2. Now, I need to read the file back. I can do that but I also need to duplicate this row because I don't have RadUpload control when I read it back..
 
 

file.InputStream.Read(bytes, 0, file.ContentLength);

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This is how I read the file back from the database. I can even display the file using Response but I don't want to display it. I want to read the content into a stream

Byte[] bytesFile = null;
                 string fileExt = string.Empty;
                 string fileName = string.Empty;

                 using (SqlDataReader sdr = objSqlCmd.ExecuteReader())
                 {
                     while (sdr.Read())
                     {
                         bytesFile = (Byte[]) sdr[2];
                         fileExt = sdr[1].ToString();
                         fileName = sdr[0].ToString();

                     }
                 }

                 var decryptFile = bytesFile; 
                 var decrypted = EncryptDecrypt.EncryptData(decryptFile, key, key, false); //I decrypt the file

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   //**** now how I read the content into a stream just like that line of code? Do I need to use  Response.OutputStream OR StreamReader?