// Code to execute on Unhandled Exceptions
private void Application_UnhandledException(object sender, ApplicationUnhandledExceptionEventArgs e)
{
// Log unhandled exception
AppLogs.WriteError("App", e.ExceptionObject);
if (Debugger.IsAttached)
{
// An unhandled exception has occurred; break into the debugger
Debugger.Break();
}
}
public static async Task WriteText(string fileName, string content)
{
try
{
var folder = FileSystem.Current.LocalStorage;
var file = await folder.CreateFileAsync(fileName, CreationCollisionOption.ReplaceExisting);
await file.WriteAllTextAsync(content);
}
catch (Exception ex)
{
AppLogs.WriteError("UserStorage.WriteText", ex);
}
}
public static async Task DeleteFileIfExists(string fileName)
{
try
{
var folder = FileSystem.Current.LocalStorage;
var file = await folder.GetFileAsync(fileName);
if (file != null)
{
await file.DeleteAsync();
}
}
catch (FileNotFoundException)
{
}
catch (Exception ex)
{
AppLogs.WriteError("UserStorage.DeleteFileIfExists", ex);
}
}
public static async Task DeleteFileIfExists(string fileName)
{
try
{
var folder = ApplicationData.Current.LocalFolder;
var file = await ApplicationData.Current.LocalFolder.GetFileAsync(fileName);
if (file != null)
{
await file.DeleteAsync(StorageDeleteOption.PermanentDelete);
}
}
catch (FileNotFoundException)
{
}
catch (Exception ex)
{
AppLogs.WriteError("UserStorage.DeleteFileIfExists", ex);
}
}
public static async Task <string> ReadTextFromFile(string fileName)
{
try
{
var folder = FileSystem.Current.LocalStorage;
var file = await folder.GetFileAsync(fileName);
if (file != null)
{
return(await file.ReadAllTextAsync());
}
}
catch (FileNotFoundException)
{
}
catch (Exception ex)
{
AppLogs.WriteError("UserStorage.ReadTextFromFile", ex);
}
return(String.Empty);
}
static public string ReadTextFromFile(string fileName)
{
try
{
using (var userStorage = new UserStorage())
{
lock (_userStoreLock)
{
if (userStorage.FileExists(fileName))
{
return(userStorage.ReadText(fileName));
}
}
}
}
catch (Exception ex)
{
AppLogs.WriteError("UserStorage.ReadTextFromFile", ex);
}
return(String.Empty);
}