From 8b3a12fccf66d1d370a83e95941187be21d52a56 Mon Sep 17 00:00:00 2001
From: ClemensFischer <fischer.clemens@gmail.com>
Date: Wed, 29 Oct 2025 22:20:54 +0100
Subject: [PATCH] Simplify SupportedCrsIds

---
 MapControl/Shared/MapImageLayer.cs |  5 ++++-
 MapControl/Shared/WmsImageLayer.cs | 13 ++-----------
 2 files changed, 6 insertions(+), 12 deletions(-)

diff --git a/MapControl/Shared/MapImageLayer.cs b/MapControl/Shared/MapImageLayer.cs
index 042777d6..2871e598 100644
--- a/MapControl/Shared/MapImageLayer.cs
+++ b/MapControl/Shared/MapImageLayer.cs
@@ -125,7 +125,10 @@ namespace MapControl
         /// </summary>
         public double LoadingProgress => (double)GetValue(LoadingProgressProperty);
 
-        public abstract IReadOnlyCollection<string> SupportedCrsIds { get; }
+        /// <summary>
+        /// Gets a collection of all CRSs supported by a MapImageLayer.
+        /// </summary>
+        public IReadOnlyCollection<string> SupportedCrsIds { get; protected set; }
 
         protected override void SetParentMap(MapBase map)
         {
diff --git a/MapControl/Shared/WmsImageLayer.cs b/MapControl/Shared/WmsImageLayer.cs
index 90d5e815..36010aac 100644
--- a/MapControl/Shared/WmsImageLayer.cs
+++ b/MapControl/Shared/WmsImageLayer.cs
@@ -73,13 +73,6 @@ namespace MapControl
         /// </summary>
         public IReadOnlyCollection<string> AvailableLayers { get; private set; }
 
-        /// <summary>
-        /// Gets a collection of all CRSs supported by a WMS.
-        /// </summary>
-        public override IReadOnlyCollection<string> SupportedCrsIds => supportedCrsIds;
-
-        private List<string> supportedCrsIds;
-
         private bool HasLayer =>
             RequestLayers != null ||
             AvailableLayers?.Count > 0 ||
@@ -120,19 +113,17 @@ namespace MapControl
                 var ns = capabilities.Name.Namespace;
                 var capability = capabilities.Element(ns + "Capability");
 
-                supportedCrsIds = capability
+                SupportedCrsIds = capability
                     .Descendants(ns + "Layer")
                     .Descendants(ns + "CRS")
                     .Select(e => e.Value)
                     .ToList();
 
-                var layerNames = capability
+                AvailableLayers = capability
                     .Descendants(ns + "Layer")
                     .Select(e => e.Element(ns + "Name")?.Value)
                     .Where(n => !string.IsNullOrEmpty(n))
                     .ToList();
-
-                AvailableLayers = layerNames;
             }
         }