public void SaveDataToFile(BookCollection books)
{
using (var writer = new BinaryWriter(File.Open(fileName, FileMode.Create)))
{
foreach (var book in books)
{
using (var memoryStream = new MemoryStream())
{
var serializer = new DataContractJsonSerializer(typeof(Book));
serializer.WriteObject(memoryStream, book);
memoryStream.Position = 0;
using (var streamReader = new StreamReader(memoryStream))
{
writer.Write(streamReader.ReadToEnd());
}
}
}
}
}
public BookListService(BookCollection books)
{
this.books = books;
}