/// <summary>
/// 建立投票所View Model.
/// <para>當投票所使用完畢後需要呼叫VotingCenterVM.Close成員方法進行關閉，才能建立新的投票所</para>
/// </summary>
/// <returns>回傳新的投票所，若投票所尚未關閉則回傳NULL</returns>
public VotingCenterVM CreateVotingCenter()
{
if (_votingCenterVM == null ||
_votingCenterVM.IsClosed)
{
_votingCenterVM = new VotingCenterVM();
return(_votingCenterVM);
}
return(null);
}
public MainWindowVM()
{
_cmtLoader = new CommentLoader();
_commentColle = new ObservableCollection <CommentVM>();
this.CommentColle = CollectionViewSource.GetDefaultView(_commentColle);
BindingOperations.EnableCollectionSynchronization(_commentColle, _lockCommentColleObj);
_votingCenterVM = null;
_puzzleCenterVM = null;
_authorTable = new Dictionary <string, string>();
_isStopped = true;
_cmtLoader.OnStatusChanged += On_CommetLoader_StatusChanged;
_cmtLoader.OnError += On_CommentLoader_Error;
_cmtLoader.OnCommentsReceive += On_CommentLoader_CommentsReceive;
this.StatusText = "已停止";
}
