From f54626ea21d3c4cf25d12cc16f4ab1dda58e7356 Mon Sep 17 00:00:00 2001
From: ClemensF <fischer.clemens@gmail.com>
Date: Sun, 25 Oct 2020 17:49:18 +0100
Subject: [PATCH] Update MapTileLayerBase.cs

---
 MapControl/Shared/MapTileLayerBase.cs | 20 +++++++++-----------
 1 file changed, 9 insertions(+), 11 deletions(-)

diff --git a/MapControl/Shared/MapTileLayerBase.cs b/MapControl/Shared/MapTileLayerBase.cs
index df3a378c..d564d889 100644
--- a/MapControl/Shared/MapTileLayerBase.cs
+++ b/MapControl/Shared/MapTileLayerBase.cs
@@ -59,12 +59,7 @@ namespace MapControl
             TileImageLoader = tileImageLoader;
 
             updateTimer = new DispatcherTimer { Interval = UpdateInterval };
-
-            updateTimer.Tick += (s, e) =>
-            {
-                updateTimer.Stop();
-                UpdateTileLayer();
-            };
+            updateTimer.Tick += (s, e) => Update();
 
             MapPanel.InitMapElement(this);
         }
@@ -149,8 +144,6 @@ namespace MapControl
             get { return parentMap; }
             set
             {
-                updateTimer.Stop();
-
                 if (parentMap != null)
                 {
                     parentMap.ViewportChanged -= OnViewportChanged;
@@ -163,7 +156,7 @@ namespace MapControl
                     parentMap.ViewportChanged += OnViewportChanged;
                 }
 
-                UpdateTileLayer();
+                Update();
             }
         }
 
@@ -171,8 +164,7 @@ namespace MapControl
         {
             if (Children.Count == 0 || e.ProjectionChanged || Math.Abs(e.LongitudeOffset) > 180d)
             {
-                updateTimer.Stop();
-                UpdateTileLayer(); // update immediately when projection has changed or center has moved across 180° longitude
+                Update(); // update immediately when projection has changed or center has moved across 180° longitude
             }
             else
             {
@@ -190,6 +182,12 @@ namespace MapControl
             }
         }
 
+        private void Update()
+        {
+            updateTimer.Stop();
+            UpdateTileLayer();
+        }
+
         protected abstract void UpdateTileLayer();
 
         protected abstract void SetRenderTransform();