private void MenuSubmit_Click(object sender, EventArgs e)
{
var locator = Styles.Resources["Locator"] as ViewModelLocator;
if (locator != null)
{
locator.Submit.RefreshUser.Execute(locator.Submit);
}
var _navigationService = ServiceLocator.Current.GetInstance<INavigationService>();
_navigationService.Navigate(typeof(ComposePostPageView), null);
}