problem about isolatedstorage-Collection of common programming errors

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  alessandro.francesconi
  c# stream windows-phone isolatedstorage
  My Windows Phone application saves an object composed by some textual/numerical information (something like image capture date and so on) and a couple of JPEG image. For example and simplicity, a single file may be composed by the following data order:from byte 0 to 3 —–> INT NUMBER from byte 4 to 11 —-> TWO INTs DESCRIBING THE SIZE OF THE NEXT IMAGE from byte 12 to X —-> FIRST JPEG IMAGE from byte X+1 to X+7 -> TWO INTs DESCRIBING THE SIZE OF THE NEXT IMAGE from byte X+8 to Y
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  Jader Dias
  c# .net isolatedstorage
  I want to write a file where an external application can read it, but I want also some of the IsolatedStorage advantages, basically insurance against unexpected exceptions. Can I have it?
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  Cyberherbalist
  windows-phone-7 isolatedstorage
  I am getting some unexpected behavior using Isolated Storage. In this case, I am using it to maintain state for the purpose of tombstoning.This is a Ham Radio licensing exam practice app. Here is what happens. When the app is first run, the user is on the MainPage, and selects one of two links, OptionPage1 or OptionPage2 (they work similarly so I’ll just focus on one). On OptionsPage1, the user selects from a number of options, then clicks a Launch button to go to ExamPage, where the user an
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  Jakob
  c# silverlight synchronization isolatedstorage
  Since use of isolatedstorage storing for silverlight can provide a method for storing userdata locally and whikle not connected to the internet, I’m interested in hearing your thoughts about intelligently synchronizing dbdata and silverlight isolatedstoragedata.I’ve currently implemented a solution, but it seems a bit complex to me, so I’d like to hear if I could have done it differently.I have a list of documentobjects that I save to the isostore.the document has (datetime)DateModified and (boo
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  Peter Mortensen
  silverlight log4net isolatedstorage
  First, I know about Clog, and I do not want to implement this piece. The reason? We can’t maintain severeal logging ‘frameworks’.So to my question:Is it possible to implement log4net in a Silverlight application? What I want to achieve is logging to the Isolated Storage. I know, there’s only 1 MB of storage available, but this limit can be increased (the user has to accept this, I know too). By the way, please don’t provide me alternatives. I do only want to know if somebody implemented a log4ne
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  CognitiveDesire
  javascript html css windows-phone-8 isolatedstorage
  I have a HTML and JS file inside the application package of WP8 app and at runtime move the files to Isolated storage and then navigate the Browser to the html page.as give in the link hereWhen I keep these files in the folder and zip that folder and at run time unzip the files and do the same as above the page is rendered on the browser but CSS and JS files etc do not loadPlease help
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  Jeff Yates
  silverlight mvvm isolatedstorage
  I am using Silverlight MVVM and IsolatedStorageSettings.SiteSettings for session management. Everything is working fine and i am able to read the data in the next page , but design view is giving error as NotSupportedException.P.S. : I am storing one single value and bot my view and view model are in different project.
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  Pius
  visual-studio-2010 windows-phone-7 isolatedstorage
  I am making a small Windows Phone 7 application and have lots of text files used by the app. They all contains LOTS of lines. Is it possible to make some files be already installed when I launch the application? I know that emulator doesn’t save isolated storage when closed but I don’t need it. I want to make some data files which would be already in the storage when my app starts for the first time. If it is possible, how do I do that?I am using Visual Studio 2010
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  Qaiser
  sqlite windows-phone-8 isolatedstorage
  i’ve created a windows phone 8 app, that is giving the result of calculations at runtime, now i need to store that result for future use/access,what to do?i have totally no idea of storage in wp8, although i’ve seen many tutorials for isolated storage & sqlite, but did’nt understood whats going on in them……any suggestion? how to store my data..? easy steps to followthis is the code, which is showing result on a page at runtime,protected override void OnNavigatedTo(NavigationEventArgs e){
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  Rosarch
  c# .net windows-phone-7 isolatedstorage
  I’m building a Windows Phone 7 app in Silverlight. I’m having difficulty with IsolatedStorage.IsolatedStorageFile storage = IsolatedStorageFile.GetUserStoreForApplication();if (!storage.FileExists(STORIES_FILE)){storage.CreateFile(STORIES_FILE);}string contents;// fails hereusing (IsolatedStorageFileStream stream = storage.OpenFile(STORIES_FILE, FileMode.Open)){using (StreamReader reader = new StreamReader(stream)){contents = reader.ReadToEnd();}}The exception is:”Operation not permitted on Isol
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  Newbie
  c# windows-phone-7 windows-phone-8 special-characters isolatedstorage
  I have the problem that if special characters (apart from full stops, colons, and dashes) are used in an IsolatedStorage file name my application crashes.Is there any work-around for using these special character in the IsolatedStorage file name.If not how can I remove all the special characters?Side note: I’m taking the input for the file name from a TextBox.
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  Ali Shafai
  silverlight security encryption isolatedstorage
  I have a LOB application in SL, one of the aims is to save partially entered data to persist user’s state. for example, you start adding a new employee to system, close the browser (or it crashes), next time you open the browser, you have whatever data you had entered before.the saving and loading is easy, I was wondering if there is already a best practice for securing the data, considering both encryption and decryption happen on the same machine and same code, it looks a bit tricky…
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  Subby
  windows-phone isolatedstorage
  I have logic which checks and creates the isolated storage directory and the files related to my application.Do I put this logic within Application_Launching method within App?Or shall I simply call this on Page_Load of my starting XAML page?
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  aclap
  windows-phone-7 windows-phone-8 isolatedstorage
  This is the declaration for save_gpublic static IsolatedStorageSettings save_g = IsolatedStorageSettings.ApplicationSettings;here cons.term[7] is of type stringsave_g[cons.term[7]] = (double)save_g[cons.term[7]] + 1;The statement above executes with no problem on the emulator. But when I run it on device (Lumia 820) it gives error.A first chance exception of type ‘System.InvalidCastException’ occurred in PhoneApp2.DLLAn exception of type ‘System.InvalidCastException’ occurred in PhoneApp2.DLL bu
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  Robaticus
  windows-phone-7 silverlight-4.0 windows-phone-7.1 windows-phone-7.5 isolatedstorage
  In my WP7 application I have downloaded 200 images from Web and saved in isolated storage .When debug all the images are loaded in panorama view by queue method and I can view when it is connected to pc. after disconnect it from pc when i open the application and navigate the images it shows some images and terminated.if (i < 150){WebClient m_webClient = new WebClient(); Uri m_uri = new Uri(“http://d1mu9ule1cy7bp.cloudfront.net/2012//pages/p_” + i + “/mobile_high.jpg”);m_webClient
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  Vitalii Vasylenko
  c# windows-phone-7 asynchronous isolatedstorage isolatedstoragefile
  It sounds like “An error occurred while accessing IsolatedStorage”. But there’s no such exceptions is msdn: http://msdn.microsoft.com/en-us/library/system.io.isolatedstorage.isolatedstoragefile.getlastaccesstime(v=vs.110).aspxI assume, it can be because i’m calling it inside of Task.Factory.StartNew(). Can it be a reason? It works on wp8 fine.EDIT:The problem was that I used GetLastAccessTime(cacheFileName).Millisecond; As it is said by the link by Agat, miliseconds are always 0 at the wp7. Or,
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  beny lim
  c# windows-phone-7 isolatedstorage
  Possible Duplicate:Grid in windows phone 7 I am trying to divide a grid named “scheduleListBox” into 2 column and then place the time in the variable of “time” and the next column to place a button it.Below is my code:string selectedFolderName;string selectedFolderName1;string[] timeSplit;string timeSaved;string timeList;protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e){base.OnNavigatedTo(e);selectedFolderName = “”;if (NavigationContext.QueryString.TryGetVal
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  kingsvid
  image windows-phone-7 web-browser out-of-memory isolatedstorage
  I’m working on my first WP7 app, and some problem occurred… My app downloads images from web and store them in Isolated Storage, then html file is generated and saved into IS. Everything works fine, until WebBrowser control try to open this html page, it render some content I can manipulate content as usual in WebBrowser, but in less then minute it throws:System.OutOfMemoryException was unhandled+ [System.OutOfMemoryException] {Could not evaluate expression} System.OutOfMemoryException
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  Yngve B. Nilsen
  c# windows-phone-7 isolatedstorage
  ScenarioApp opens Checks to see if image for background exists in Isolated Storage If not, downloads from web, and saves it to Isolated Storage Loads the image from Isolated Storage and sets it as Background on a Panorama-controlProblemThe image is not loaded in GUI.. When I’m inspecting the byte-array received from isolated storage, it contains the same amount of bytes as was written initially, but the image doesn’t show up.Here’s some test-code I’m currently using to try and figure out the pro
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  ctacke
  c# windows-phone-7 isolatedstorage isolatedstoragefile
  Description: The code below is the simplest code I could write which causes the failure. I’ve also tried: putting the CreateFile and MoveFile in different using statements, putting them in different xaml pages, moving the file into a subdirectory with a new filename, moving it into a subdirectory with the same filename. They all throw the same exception. CopyFile throws the same exception in all circumstances.Question is–what incredibly simple thing am I not accounting for? Open a new Silverlig
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  beny lim
  windows-phone-7 isolatedstorage
  I am trying to do a setting page where the user can choose the number of question, song and passing rate from listpicker control..Then the selected index of the question, song and passing rate will be write into isolated storage.Below is my code:int indexQues;string rate;private void saveBtn_Click(object sender, RoutedEventArgs e){using (IsolatedStorageFile myIsolatedStorage = IsolatedStorageFile.GetUserStoreForApplication()) {if (myIsolatedStorage.FileExists(“SettingFolder\\queSetting.txt”)) {m
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  Dan Sewell
  c# .net windows-phone-7 isolatedstorage
  I have a page in my WP7 which contains some text boxes. When pressing the back key this method is run to save the contents:protected override void OnBackKeyPress(System.ComponentModel.CancelEventArgs e){var settings = IsolatedStorageSettings.ApplicationSettings;settings[“remZone”] = txtBoxZone.Text;settings[“remSpace”] = txtBoxSpace.Text;}The problem is some users would not press the back button, but would press the home button to exit the app, so the contents are not saved.I think there are two
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  Andrew Davey
  c# .net isolatedstorage
  My library is using isolated storage but only does so on demand. So I’m using Lazy<T>.However, this throws: System.IO.IsolatedStorage.IsolatedStorageException “Unable to determine granted permission for assembly.”Does Lazy do something weird with threads that confuses isolated storage initialization?Sample code:using System; using System.IO.IsolatedStorage;namespace ConsoleApplication1 {class Program{static void Main(string[] args){var thisWorks = IsolatedStorageFile.GetMachineStoreForAsse
• 
  Soner Gönül
  c# windows-phone-7 windows-phone-8 windows-phone isolatedstorage
  I have a application that needs to download and save files on a device – videos.Videos are short ~ 10min and in poor quality, which means that their size is minimal.So, the problem is that when i download some files – all goes nice, but some files fail with error: Out of memory exception. Logically i think that files less than some size ( for example 50MB ) download nicely, but higher – exception.Here is my code:private void btnDownload2_Click(object sender, RoutedEventArgs e){WebClient webClien
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  Diego Vin
  windows-phone-7 isolatedstorage tombstoning
  Im trying to persist some data but im getting an error here.Declaration of isolated storage inside my public partial mainpage classIsolatedStorageSettings settings = IsolatedStorageSettings.ApplicationSettings;implementation of onNavigatedFromprotected override void OnNavigatedFrom(System.Windows.Navigation.NavigationEventArgs e){settings.Add(“list”,listBox1.ItemsSource);settings.Save();}When I hit the start button on the emulator I get a security exception:System.Security.SecurityException was
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  TotalJargon
  c# windows-phone-7.1 text-files xna-4.0 isolatedstorage
  Basically I’m writing code that creates a new file in the IsolatedStorage, I’m sure that I’m closing the streams correctly but there must be something that’s missing, could you have a look at it to make sure I’m not missing something obvious?Here’s my save function, it’s where the error is thrown and is called at the end of a game once the user enters his/her name:public void SaveHighScores(string NewName, int NewScore) {SortHighScores(NewName, NewScore);IsolatedStorageFile isoStore = IsolatedSt
• 
  PiTheNumber
  internet-explorer-9 local-storage isolatedstorage
  Both statements window[‘localStorage’] and window.localStorageare undefined when accessing the url “file:///C:/index.html”Is localStorage off limits when running websites on the filesystem?PS. I’m running the website on a Windows 7 phone hosting the website in isolatedStorage.
• 
  tilak
  windows-phone-7 sql-server-ce iqueryable isolatedstorage
  I need to get the maximum value from table that should belongs to particular category. My code as follows : private int getHighScores(int _playMode){int maxScore = 0;using (HangmanScoreDataContext hangmanDB = new HangmanScoreDataContext(@”isostore:/HangmanScoreDB.sdf”)){IQueryable<TbleHangmanScore> sqlQuery = hangmanDB._tbleHangman;sqlQuery = sqlQuery.Where(p => p.playMode == _playMode); maxScore = sqlQuery.AsQueryable().Max(p => p.score);}return maxScore;}I am gettin

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