ObservableCollection 仅在地图缩放和移动事件上更新，而不添加到集合中！

Question

我对已绑定的集合有疑问。我有一个手动刷新按钮，可以从服务器中拉出一些移动图钉。服务器正在自行移动引脚。处理后，我删除现有集合并将其重新添加到可观察集合中。该代码有效，我已经验证内容已更新，但是如果发生了地图的缩放或移动，则引脚仅“更新”（在地图上移动）！

我的课程如下...

public class MapData : INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler PropertyChanged;

        private void RaisedPropertyChanged(string propertyName)
        {
            if (PropertyChanged != null)
            {
                PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
            }
        }

        private GeoCoordinate mapCenter = new GeoCoordinate(50, -1);

        public GeoCoordinate MapCenter
        {
            get { return this.mapCenter; }
            set
            {
                if (this.mapCenter == value) return;
                this.mapCenter = value;
                this.RaisedPropertyChanged("MapCenter");
            }
        }

        private double zoom = 7.0;
        public double Zoom
        {
            get { return this.zoom; }
            set
            {
                if (this.zoom == value) return;
                this.zoom = value;
                this.RaisedPropertyChanged("Zoom");
            }
        }

        public ObservableCollection<Plane> pins = new ObservableCollection<Plane>() { 

        };

        public ObservableCollection<Plane> Pins
        {
            get { return pins; }
        }

        public void RemovePoints()
        {
            for (int i = 0; i < pins.Count; i++)
            {
                pins.RemoveAt(i);
            }
            pins.Clear();
            this.RaisedPropertyChanged("Location");
        }

       public void AddPoints(List<Plane> Planelist)
        {

            for (int i = 0; i < Planelist.Count; i++) 
            {
                pins.Add(Planelist[i]);
            }

        }



        private Plane selectedPin;
        public Plane SelectedPin
        {
            get {
                return this.selectedPin;
            }
            set
            {
                if (this.selectedPin == value) return;
                this.selectedPin = value;
                this.RaisedPropertyChanged("SelectedPin");

            }
        }

        private LocationCollection routePoints = new LocationCollection();
        public LocationCollection RoutePoints
        {
            get { return routePoints; }
        }

    }

并且使用以下内容进行绑定...

<my:MapItemsControl ItemsSource="{Binding Pins}" ItemTemplate="{StaticResource PushedMe}"/>

Answer 1

与 Microsoft 交谈后，该设备似乎会缓存 URL，这实际上是我的问题！在服务器端强制无缓存并修复问题！