This is a mirror of official site: http://jasper-net.blogspot.com/

Silverlight Isolated Storage vs Private Browsing

| Monday, November 15, 2010
Isolated Storage in Silverlight is a good place to persist any kind of user preferences. The problem: You cannot rely on Isolated Storage being available.

It can easily be turned of via the Silverlight context menu.

image.axd?picture=isoStorage_thumb.jpg

Even when “Enable application storage” is checked you may still get an

image.axd?picture=isoStorageException_thumb.jpg

This can happen when private browsingis enabled (in all major browsers). Conclusion: Always check availability before accessing:

if (IsolatedStorageFile.IsEnabled)
{
   // read/write isolated storage data
}
else
{
   // do something else
}

Possible backup strategies:

1. Use cookies?
Well, not really. Cookies are deleted when a private browsing session ends.

2. Ask user?

Read more: Code portrait

Posted via email from .NET Info

0 comments: