Csharp 如何限制事件 RX

我试图限制由滑块触发的事件，当值已更改时，我希望限制为1秒，每秒打印一次，但打印的数据不正确.同时打印集合中的所有值，但我希望每秒打印该唯一数据类型的最后一个值，结果发布在下面.

[完全可复制代码]

<Grid>
    <TextBox x:Name="txtbilly" Text="{Binding Position, Mode=TwoWay , UpdateSourceTrigger=PropertyChanged}" Margin="0,0,0,382" ></TextBox>
    <TextBox x:Name="txtbob" Text="{Binding Position, Mode=TwoWay , UpdateSourceTrigger=PropertyChanged}" Margin="0,162,0,233" ></TextBox>
    <Slider x:Name="slbilly"  Value="{Binding Position, Mode=TwoWay , UpdateSourceTrigger=PropertyChanged}" Margin="0,57,0,306" GotMouseCapture="slbilly_GotMouseCapture"/>
    <Slider x:Name="slbob"  Value="{Binding Position, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Margin="0,206,0,171" GotMouseCapture="slbob_GotMouseCapture" />
</Grid>

代码隐藏:

public partial class MainWindow : Window
{
    Student billy = new Student("Unique1", 0.0f);
    Student Bob = new Student("Unique2", 0.0f);
    public MainWindow()
    {
        InitializeComponent();
        txtbilly.DataContext = billy;
        slbilly.DataContext = billy;
        billy.PropertyChanged += Students_PropertyChanged;

        txtbob.DataContext = Bob;
        slbob.DataContext = Bob;
        Bob.PropertyChanged += Students_PropertyChanged;

    }
    static IList<Student> studentsList = new List<Student>();
    IObservable<Student> observable;
    private void Students_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
    {
        var student = (Student)sender;
        studentsList.Add(student);
        Debug.Print("List COunt ==>>>" + studentsList.Count.ToString() + "\n");

        observable = studentsList.ToObservable(Scheduler.Default);

        observable.Throttle(TimeSpan.FromSeconds(1), Scheduler.Default);
    }

    private void slbilly_GotMouseCapture(object sender, MouseEventArgs e)
    {
        observable?.Subscribe(i => Debug.Print("{0}\nPos {1}\n Time Received {2}\nOBS Count{3}", i?.ID?.ToString(), i.Position.ToString(), DateTime.Now.ToString(), observable.Count<Student>().ToString()));
    }


    private void slbob_GotMouseCapture(object sender, MouseEventArgs e)
    {

        observable?.Subscribe(i => Debug.Print("{0}\nPos {1}\n Time Received {2}\nOBS Count{3}", i?.ID?.ToString(), i.Position.ToString(), DateTime.Now.ToString(), observable.Count<Student>().ToString()));
    }
}

型号:

public class Student : INotifyPropertyChanged
{
    private string _ID;
    public string ID
    {
        get
        {
            return _ID;
        }
        set
        {
            _ID = value;
            OnPropertyChanged(new PropertyChangedEventArgs("ID"));
        }
    }
    private float _Position;
    public float Position
    {
        get
        {
            return _Position;
        }
        set
        {
            _Position = value;
            OnPropertyChanged(new PropertyChangedEventArgs("Position"));
        }
    }
    public Student(string id, float position)
    {

        this.Position = position;
        this.ID = id;

    }

    public event PropertyChangedEventHandler PropertyChanged;
    public void OnPropertyChanged(PropertyChangedEventArgs e)
    {
        if (PropertyChanged != null)
        {
            PropertyChanged(this, e);
        }
    }
}

结果:

1. Unique1 Pos 0.06468305收到时间2022年4月18日00:16:05

2. Unique1 Pos 0.06468305收到时间2022年4月18日00:16:05 OBS

3. Unique1 Pos 0.06468305收到时间2022年4月18日00:16:05 OBS

4. Unique1 Pos 0.06468305收到时间2022年4月18日00:16:05 OBS

5. Unique1 Pos 0.06468305收到时间2022年4月18日00:16:05 OBS

预期:如果用户从0.0开始，并在1秒内从0.0拖动到300.98，然后在2秒内拖动到200.45:

收到Unique1 Pos 0.0时间2022年4月18日00:16:05

Unique1 Pos 300.98收到时间2022年4月18日00:16:06

Unique1 Pos 200.45收到时间2022年4月18日00:16:07

问题:

1. studentsList个计数持续增长，且不被可观察对象重置(每次使用鼠标从控件中释放时，它都应重置列表).

2. InvalidOperationException:'集合已修改；枚举操作可能无法执行.'

3. 调试.仅当我将鼠标从拖动动作中释放后，打印才会被打印/执行

@谜团性的回答整理了我的第四个已知问题.

我是Rx技术的新手，所以我不确定我是否以正确的方式实现了它.

Basically if the Value changed is coming from the same control I would like to throttle it, e.g. on the slider control when the user click the knob to drag start throttling once the user releases the mouse click stop throttling