private void RunUpgrade()
{
var strategy = UserUpgradeStrategy.Create();
if (strategy == null)
{
return;
}
if (strategy.TotalSteps < 5 || null == (_dialogView = CreateDialog()))
{
strategy.Run();
return;
}
var task = new BackgroundTask(
delegate(IBackgroundTaskContext context)
{
strategy.ProgressChanged += (sender, e) => context.ReportProgress(new BackgroundTaskProgress(strategy.CurrentStep - 1, strategy.TotalSteps, String.Empty));
strategy.Run();
context.Complete();
}, false, strategy);
task.ProgressUpdated += (sender, e) => _dialogView.SetProgressPercent(e.Progress.Percent);
task.Terminated += (sender, e) => _dialogView.Close(strategy.FailedCount > 0 ? SR.MessageUserUpgradeFailures : null);
task.Run();
_dialogView.RunModal(SR.TitleUpdatingPreferences, SR.MessageUpdatingPreferences);
task.Dispose();
}
