BusyIndi​​cator BusyContent绑定到WPF窗口中的属性不会更新

Question

我创建了一个WPF表单，其中包含来自Extended WPF Toolkit的BusyIndi​​cator。此窗口在新线程上运行并实现INotifyPropertyChanged。接下来，我将BusyContent绑定到属性，该属性在BusyContent上显示正常，但似乎没有更新。任何想法？

 <StackPanel>
    <xctk:BusyIndicator IsBusy="True" BusyContent="{Binding BusyText, Mode=TwoWay, NotifyOnSourceUpdated=True, UpdateSourceTrigger=PropertyChanged}" >
    </xctk:BusyIndicator>
</StackPanel>

 private string _busyText;
    public string BusyText
    {
        get
        {
            return _busyText;
        }
        set
        {
            _busyText = value;
            this.OnPropertyChanged("BusyText");
        }
    }

Answer 1

我已经用后台线程实现了解决方案，它开始工作了：

BackgroundWorker worker = new BackgroundWorker();
worker.DoWork += (o, ea) =>
    {
        BusyText = ReceivedMessage;
    };
worker.RunWorkerCompleted += (o, ea) =>
{
    _busyIndicator.IsBusy = false;
};
_busyIndicator.IsBusy = true;
worker.RunWorkerAsync();