public void OnNavigatedTo(NavigationContext navigationContext)
 {
     try
     {
         UndoneProjects.Clear();
         UndoneProjects.AddRange(_projectService.GetAllUndoneProjects(_store.GetCurrentUser().Id));
         UnapprovedProjects.Clear();
         UnapprovedProjects.AddRange(_projectService.GetAllUnapprovedProjects(_store.GetCurrentUser().Id));
     }
     catch (CheckedException e)
     {
         ShowError("Error", e.Message);
     }
 }
 private void Deny(int?taskId)
 {
     try
     {
         _projectService.DenyTask((int)taskId);
         UndoneProjects.Clear();
         UndoneProjects.AddRange(_projectService.GetAllUndoneProjects(_store.GetCurrentUser().Id));
         UnapprovedProjects.Clear();
         UnapprovedProjects.AddRange(_projectService.GetAllUnapprovedProjects(_store.GetCurrentUser().Id));
     }
     catch (CheckedException e)
     {
         ShowError("Error", e.Message);
     }
 }