suspend tree model events during sort, since this can produce a lot of changes

mRemoteV1/Config/Connections/SaveConnectionsOnEdit.cs

@@ -1,7 +1,9 @@
 using System;
 using System.Collections.Specialized;
 using System.ComponentModel;
+using mRemoteNG.App;
 using mRemoteNG.Connection;
+using mRemoteNG.Messages;
 
 namespace mRemoteNG.Config.Connections
 {
@@ -46,6 +48,8 @@ namespace mRemoteNG.Config.Connections
             if (!mRemoteNG.Settings.Default.SaveConnectionsAfterEveryEdit)
                 return;
             _connectionsService.SaveConnections();
+
+            Runtime.MessageCollector.AddMessage(MessageClass.InformationMsg, "Auto saved connections");
         }
     }
 }

mRemoteV1/Tree/ConnectionTreeModel.cs

@@ -8,9 +8,11 @@ using mRemoteNG.Tree.Root;
 
 namespace mRemoteNG.Tree
 {
-	public sealed class ConnectionTreeModel : INotifyCollectionChanged, INotifyPropertyChanged
+    public sealed class ConnectionTreeModel : INotifyCollectionChanged, INotifyPropertyChanged
     {
         public List<ContainerInfo> RootNodes { get; } = new List<ContainerInfo>();
+        public bool SuspendingCollectionChangedEvents { get; set; }
+        public bool SuspendingPropertyChangedEvents { get; set; }
 
         public void AddRootNode(ContainerInfo rootNode)
         {
@@ -66,6 +68,9 @@ namespace mRemoteNG.Tree
         public event NotifyCollectionChangedEventHandler CollectionChanged;
         private void RaiseCollectionChangedEvent(object sender, NotifyCollectionChangedEventArgs args)
         {
+            if (SuspendingCollectionChangedEvents)
+                return;
+
             CollectionChanged?.Invoke(sender, args);
         }
 
@@ -73,6 +78,9 @@ namespace mRemoteNG.Tree
 
         private void RaisePropertyChangedEvent(object sender, PropertyChangedEventArgs args)
         {
+            if (SuspendingPropertyChangedEvents)
+                return;
+
             PropertyChanged?.Invoke(sender, args);
         }
     }

mRemoteV1/UI/Controls/ConnectionTree/ConnectionTree.cs

@@ -311,11 +311,14 @@ namespace mRemoteNG.UI.Controls
             if (sortTarget == null)
                 sortTarget = GetRootConnectionNode();
 
+            var wasSuspendingEvents = _connectionTreeModel.SuspendingCollectionChangedEvents;
+            _connectionTreeModel.SuspendingCollectionChangedEvents = true;
             var sortTargetAsContainer = sortTarget as ContainerInfo;
             if (sortTargetAsContainer != null)
                 sortTargetAsContainer.SortRecursive(sortDirection);
             else
                 SelectedNode.Parent.SortRecursive(sortDirection);
+            _connectionTreeModel.SuspendingCollectionChangedEvents = wasSuspendingEvents;
         }
 
         /// <summary>