From af58373f8e8edb26cf67514ef63765ed72a6a0c8 Mon Sep 17 00:00:00 2001
From: Oleksandr Liakhevych <liakh.oleksandr32@gmail.com>
Date: Sun, 27 Aug 2023 23:43:55 +0300
Subject: [PATCH] Remove KeySelector support for now - I'm not sure how it
 should work

---
 .../Elements/Internal/ItemsSourceComponent.cs | 21 ++++++-------------
 1 file changed, 6 insertions(+), 15 deletions(-)

diff --git a/src/BlazorBindings.Maui/Elements/Internal/ItemsSourceComponent.cs b/src/BlazorBindings.Maui/Elements/Internal/ItemsSourceComponent.cs
index 8028addf..dbe4e69c 100644
--- a/src/BlazorBindings.Maui/Elements/Internal/ItemsSourceComponent.cs
+++ b/src/BlazorBindings.Maui/Elements/Internal/ItemsSourceComponent.cs
@@ -18,14 +18,10 @@ internal class ItemsSourceComponent<TControl, TItem> : NativeControlComponentBas
     [Parameter]
     public Action<TControl, ObservableCollection<TItem>> CollectionSetter { get; set; }
 
-    [Parameter]
-    public Func<TItem, object> KeySelector { get; set; }
-
-
     private TControl _parent;
     public object TargetElement => _parent;
 
-    private HashSet<object> _keys;
+    private readonly HashSet<object> _keys = new();
 
     protected override RenderFragment GetChildContent() => builder =>
     {
@@ -35,16 +31,11 @@ protected override RenderFragment GetChildContent() => builder =>
         int index = 0;
         foreach (var item in Items)
         {
-            var key = KeySelector == null ? item : KeySelector(item);
-            if (KeySelector == null)
-            {
-                // Blazor doesn't allow duplicate keys. Therefore we add keys until the first duplicate.
-                // In case KeySelector is provided, we don't check for that here, since it's user's responsibility now.
-                _keys ??= new();
-                shouldAddKey &= _keys.Add(key);
-                if (!shouldAddKey)
-                    key = null;
-            }
+            object key = item;
+            // Blazor doesn't allow duplicate keys. Therefore we add keys only until the first duplicate.
+            shouldAddKey &= _keys.Add(key);
+            if (!shouldAddKey)
+                key = null;
 
             builder.OpenComponent<ItemHolderComponent>(1);
             builder.SetKey(key);