“Operation Not Permitted” On IsolatedStorageSettings in Windows Phone
This is really fast but it took me a while to figure out. I was getting the following on my recent project when I tried to save something using IsolatedStorageSettings:
“Operation not permitted on IsolatedStorageFileStream.”
And I couldn’t find anything about it other than a very generic “Looks like a threading problem” answers.
Long story short:
I was, in rapid succession, running the same save code twice. What I think happened was that the IsolatedStorageFileStream was still open and trying to save when I tried to get it to save again on another thread.
That’s my guess. I figured I’d toss up this short post on it before I forgot what the problem was.
This entry was posted in Silverlight, Windows Phone, Windows Phone 7 and tagged Errors, IsolateStorageSettings, Mango, Windows Phone 7. Bookmark the permalink.
5 Responses to “Operation Not Permitted” On IsolatedStorageSettings in Windows Phone
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If the file is already open for read/write you should not do the same action over that file in the isolated storage. Otherwise you will always receive this exception.