silverlight 内嵌百度地图，打开路况，3小时或8小时后自定义标记消失，不能规律重现

Question

silverlight 内嵌百度地图，打开路况，3小时或8小时后自定义标记消失，不能规律重现
消失后返回 silverlight 页面 报错信息为

System.Exception: 错误 0x1709。调试资源字符串不可用。请访问 http://go.microsoft.com/fwlink/?linkid=106663&Version=5.1.50901.0&File=mscorrc.dll&Key=0x1709 0x80020101
位于 MS.Internal.XcpImports.CheckHResult(UInt32 hr)
位于 MS.Internal.XcpImports.WebBrowser_InvokeScript(DependencyObject obj, String scriptName, String[] parameters)
位于 System.Windows.Controls.WebBrowser.InvokeScript(String scriptName, String[] args)
位于 Sunlight.Silverlight.Dcs.VehicleLogistics.Views.Custom.TrackInTransitForMapDataEditView.SetLocation()
位于 Sunlight.Silverlight.Dcs.VehicleLogistics.Views.Custom.TrackInTransitForMapDataEditView.b__7(LoadOperation1 loadOp)
位于 System.ServiceModel.DomainServices.Client.DomainContext.<>c__DisplayClass131.b__11(LoadOperation lo)
位于 System.ServiceModel.DomainServices.Client.LoadOperation.<>c__DisplayClass41.<Create>b__0(LoadOperation1 arg)
位于 System.ServiceModel.DomainServices.Client.LoadOperation`1.InvokeCompleteAction()
位于 System.ServiceModel.DomainServices.Client.OperationBase.Complete(Object result)
位于 System.ServiceModel.DomainServices.Client.LoadOperation.Complete(DomainClientResult result)
位于 System.ServiceModel.DomainServices.Client.DomainContext.CompleteLoad(IAsyncResult asyncResult)
位于 System.ServiceModel.DomainServices.Client.DomainContext.<>c__DisplayClass1b.b__17(Object )

Answer 1

public void SetLocation() {

        if(!this.IsLoadCompleted) {
            UIHelper.ShowNotification("由于网络原因，地图尚未加载完全，请重新尝试");
            return;
        }
        //调用加载的百度地图baiduMap.html内的BaiduSearch函数，并且传入值
        if((this.TrackInTransits != null) && this.TrackInTransitCounts != null && IsLoadCompleted) {
            //if(!this.IsLoadCompleted || this.TrackInTransits == null || !this.TrackInTransits.Any()) {
            //    UIHelper.ShowNotification("由于网络原因，地图尚未加载完全，请重新尝试");
            //    return;
            //}
            ////调用加载的百度地图baiduMap.html内的BaiduSearch函数，并且传入值
            //if((this.TrackInTransits != null && this.TrackInTransits.Any()) && this.TrackInTransitCounts != null && this.TrackInTransitCounts.Any() && IsLoadCompleted) {
            var repeatTrackInTransits = this.TrackInTransits.GroupBy(l => new {
                l.TransportVehiclePlate,
                l.VehicleCarrierName,
                l.DriverName,
                l.DriverCellPhoneNumber,
                l.Departure,
                l.LocationTime,
                l.OutTime,
                l.Location
            }).Select(t => t).ToArray();
            var tackInTransitStr = JsonConvert.SerializeObject(repeatTrackInTransits);
            var title = JsonConvert.SerializeObject(this.titles);
            var sumInfo = JsonConvert.SerializeObject(this.SumInfoes);
            var tackInTransitCountStr = JsonConvert.SerializeObject(this.TrackInTransitCounts);
            //try {
               // Dispatcher.BeginInvoke(() => {
                    this.webBrowserMap.InvokeScript("BaiduSearch", tackInTransitStr, title, sumInfo, tackInTransitCountStr);
                //});
            //} 
            //catch {
            //}
            //this.LayoutRoot.Language = XmlLanguage.GetLanguage("zh-CN");
        }
    }