Fix UpdateSourceTrigger of QueueView and clear charts if the "Clear Queues" button is clicked.

CBSVisualizer/CBSVisualizer.Modules.Charts/ViewModels/ChartsViewModel.cs

@@ -5,6 +5,7 @@ using System.Collections.ObjectModel;
 using CBSVisualizer.Core.Mvvm;
 using CBSVisualizer.Messaging.Events;
 using CBSVisualizer.Messaging.Events.Charts;
+using CBSVisualizer.Messaging.Events.Queue;
 using CBSVisualizer.Messaging.Events.Simulation;
 using Prism.Events;
 using Prism.Regions;
@@ -30,6 +31,19 @@ namespace CBSVisualizer.Modules.Charts.ViewModels
             InitCharts();
             InitPacketHandler(eventAggregator);
             InitCreditHandler(eventAggregator);
+            InitClearListener(eventAggregator);
+        }
+
+        private void InitClearListener(IEventAggregator eventAggregator)
+        {
+            eventAggregator.GetEvent<ClearQueuesEvent>().Subscribe(() =>
+            {
+                foreach (var (_, collection) in QueueSeries)
+                {
+                    collection[0]?.DataSeries.Clear();
+                    collection[1]?.DataSeries.Clear();
+                }
+            });
         }
 
         /// <summary>