C# saving data to disk within Closing problem

Question

1.00/5 (1 vote)

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Hello, I have following problem in my WPF app:

I want to save application data to disk. I am trying to do this in main window Closing event.

Code:

C#

XmlDocument Doc = new XmlDocument();
XmlElement root = Doc.CreateElement("fileset");

foreach(FileModel file in set)
{
    XmlElement fileElem = Doc.CreateElement("file");
    root.AppendChild(fileElem);

    fileElem.SetAttribute("path", file.Path);
}

System.IO.File.Create(path);

using (System.IO.StreamWriter file = new System.IO.StreamWriter(path, true))
{
    System.IO.StringWriter sw = new System.IO.StringWriter();
    XmlTextWriter tx = new XmlTextWriter(sw);
    Doc.WriteTo(tx);

    file.Write(tx.ToString());
}

// Doc.Save(path);

Problem is causing new System.IO.StreamWriter(path, true) (Doc.Save(path) as well), which never returns. Main window gets black and I have to kill app using taskmanager. System.IO.File.Create(path); works fine.

Any ideas?

Posted 2-Aug-13 3:01am

patrik polakovic

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Comments

ZurdoDev 2-Aug-13 9:16am

If you have code that works fine why don't you use it? I guess I'm confused.

patrik polakovic 2-Aug-13 9:19am

Creation of file "path" works fine. But its empty. Filling it with data is not working.

Sergey Alexandrovich Kryukov 2-Aug-13 10:21am

It sounds as if you didn't use the debugger...
—SA

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Bernhard Hiller · Accepted Answer · 2013-08-04T22:10:00

Throw away the line System.IO.File.Create(path); - it's useless.

C#

XmlWriterSettings xmlSettings = new XmlWriterSettings();
xmlSettings.Encoding = System.Text.Encoding.UTF8;
xmlSettings.Indent = true;
xmlSettings.NewLineHandling = NewLineHandling.None;
xmlSettings.NewLineOnAttributes = false;
XmlWriter writer = XmlWriter.Create(path, xmlSettings);
writer.WriteStartDocument(true);
Doc.WriteTo(writer);
writer.WriteEndDocument();
writer.Close();