Generate XML in memory and write to DotNetZip - dotnetzip

Question

I try to do the following:
var mem = new MemoryStream();
var xmlWriter = new XmlTextWriter(mem, System.Text.Encoding.UTF8);
xmlWriter.Formatting = Formatting.Indented;
var xmlSerializer = new XmlSerializer(typeof(Project));
xmlSerializer.Serialize(xmlWriter, this);
xmlWriter.Flush();
mem.Seek(0, SeekOrigin.Begin);
using (var zip = new ZipFile())
{
ZipEntry e = zip.AddEntry("file.xml", mem);
e.Comment = "XML file";
zip.AddFile("file.xml");
zip.Save(filename);
}
mem.Close();
But is throws an exception when the zip.Save is called.
What am I doing wrong here?
The basic idea is to serialize the class Project to an XmlFile in a memorystream. Then use the memorystream in DotNetZip and zip it to file.

Answer 1

What exception did you receive? This code worked for me:
using (ZipFile zip = new ZipFile())
using (MemoryStream memStream = new MemoryStream())
using(XmlTextWriter xmlWriter = new XmlTextWriter(memStream, System.Text.Encoding.UTF8))
{
xmlWriter.Formatting = Formatting.Indented;
var xmlSerializer = new XmlSerializer(typeof (Project));
xmlSerializer.Serialize(xmlWriter, new Project());
xmlWriter.Flush();
memStream.Seek(0, SeekOrigin.Begin);
zip.AddEntry("xmlEntry.xml", memStream);
var myDir = #"C:\myfolder\";
Directory.CreateDirectory(myDir);
zip.Save(Path.Combine(myDir, "myfile.zip"));
}