public EditAdministratorForm(Guid? administratorId = null)
{
InitializeComponent();
this.administratorId = administratorId.HasValue
? administratorId.Value : Guid.Empty;
taskPool = new TaskPool();
taskPool.OnAddTask += taskPool_OnAddTask;
taskPool.OnRemoveTask += taskPool_OnRemoveTask;
permissionsFlagsControl.Initialize<AdministratorPermissions>();
}