public EditLifeSituationGroupForm(Guid? parentId = null, Guid? groupId = null)
: base()
{
InitializeComponent();
this.parenGrouptId = parentId.HasValue
? parentId.Value : Guid.Empty;
this.groupId = groupId.HasValue
? groupId.Value : Guid.Empty;
taskPool = new TaskPool();
taskPool.OnAddTask += taskPool_OnAddTask;
taskPool.OnRemoveTask += taskPool_OnRemoveTask;
}