Silverlight - Using Isolated Storage

Posted: Jul 15, 2008 at 11:19 AM

By: Mike Taulty

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4 Comments

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A Silverlight application can securely store data isolated per-application, per-user on the local machine - here we look at how that works.

You can also use the XmlSerializer (from System.Xml.Serialization) to save ur data in a XML file:
// Save method:
            using (var file = IsolatedStorageFile.GetUserStoreForApplication())            {                var xs = new XmlSerializer(typeof(List<Rect>));                using (IsolatedStorageFileStream stream = file.CreateFile("rects.xml"))                {                    xs.Serialize(stream, list);                    stream.Close();                }            }
And reading is easy to:
// Load method:
            using (var file = IsolatedStorageFile.GetUserStoreForApplication())            {                // NOTE: you should check if file exist..                var xs = new XmlSerializer(typeof(List<Rect>));
                using (IsolatedStorageFileStream stream = file.OpenFile(FILENAME, FileMode.Open))                {                    list = (List<Rect>) xs.Deserialize(stream);                    stream.Close();                }
            }

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jshorttt

Dec 14, 2009 at 10:51 AM quote reply

Simply the best.
Pawan Venugopal

Dec 19, 2009 at 2:42 PM quote reply

Great Post.

What if i have a .asx file in IsoStore and how do i return it as a file to a silverlight control like media element.
tourist

Oct 22, 2010 at 9:49 AM quote reply

You can also use the XmlSerializer (from System.Xml.Serialization) to save ur data in a XML file:
// Save method:
            using (var file = IsolatedStorageFile.GetUserStoreForApplication())            {                var xs = new XmlSerializer(typeof(List<Rect>));                using (IsolatedStorageFileStream stream = file.CreateFile("rects.xml"))                {                    xs.Serialize(stream, list);                    stream.Close();                }            }
And reading is easy to:
// Load method:
            using (var file = IsolatedStorageFile.GetUserStoreForApplication())            {                // NOTE: you should check if file exist..                var xs = new XmlSerializer(typeof(List<Rect>));
                using (IsolatedStorageFileStream stream = file.OpenFile(FILENAME, FileMode.Open))                {                    list = (List<Rect>) xs.Deserialize(stream);                    stream.Close();                }
            }
tourist

Oct 22, 2010 at 9:56 AM quote reply

oh boy.. thats not readable. it didn't save the text formatting.. sorry about that.
click the link below for a more readable version of the code:
http://paste2.org/p/1049293

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