private void HandleCreateListCommand(object parameter)
{
if (this.Title == null)
{
this.Message = "Title can not be null!";
return;
}
if (this.Todos.Count == 0)
{
this.Message = "Todo list must contain at least one !";
return;
}
var filledTodoes = this.Todos.Where(t => !string.IsNullOrEmpty(t.Text));
if (filledTodoes.Count() == 0)
{
this.Message = "Todo list must contain at least one Todo!";
return;
}
DataPersister.CreateNewTodosList(this.Title, filledTodoes);
this.Title = "";
this.Todos.Clear();
this.TodoLists = DataPersister.GetTodoLists();
}