WPF中沒有顯示忙碌指示器？

Question

嗨，大家好，我想在我的項目中顯示Busy Indicator 。我正在使用后台工作線程，但問題是屏幕上沒有顯示忙碌指示器，我不知道這是什么。代碼是：

XAML是：

<xctk:BusyIndicator Width="200" HorizontalAlignment="Center" 
                    BusyContent="Please wait while the Access controller is configuring "
                    IsBusy="{Binding IsBusy}">

</xctk:BusyIndicator>

C＃代碼是：

BackgroundWorker _worker = new BackgroundWorker();

{
   _worker.DoWork += (o, ea) =>
    {
      IsBusy = true;
      DiscoverConnectedDevices();
    };

            _worker.RunWorkerCompleted += (o, ea) =>
                {
                    IsDiscoverButtonEnable = true;
                    IsBusy = false;
                    Mouse.OverrideCursor = null;

                    CommandManager.InvalidateRequerySuggested();
                };
            ipmac = new ObservableCollection<IpMacAddressClass>();
        }
 public bool IsBusy
        {
            get
            {
                return _isBusy;
            }
            set
            {
                if(value!=_isBusy)
                {
                    IsBusy = value;
                    OnPropertyChanged("IsBusy");
                }
            }
        }

Answer 1

您正在設置器中設置IsBusy ，而不是_isBusy

應該：

public bool IsBusy
{
    get
    {
        return _isBusy;
    }
    set
    {
        if(value!=_isBusy)
        {
            _isBusy = value;
            OnPropertyChanged("IsBusy");
        }
    }
}