public void AddNewList(ListModel list, ObservableCollection <TaskModel> tasks)
{
ListModel list_model = new ListModel();
TaskModel task_model = new TaskModel();
int list_status = list_model.InsertList(list.List_name, list.List_user_id, list.List_fronts, true);
if (list_status != 0)
{
int list_id = list_model.GetListId();
list_model.UpdateList(list_id, list.List_name, list.List_user_id, list.List_fronts, false);
foreach (TaskModel item in tasks)
{
string deadline = item.Task_deadline.ToString();
task_model.InsertTask(item.Task_desc, deadline, item.Task_priority, item.Task_link_id, list_id, item.Task_sorted_order, item.Task_front);
}
}
}