From 01fabde430375504353815dea6f1cb6a74463443 Mon Sep 17 00:00:00 2001
From: Dameng <313880747@qq.com>
Date: Mon, 20 May 2024 14:36:45 +0800
Subject: [PATCH 1/2] fix TagInput bug when TagsProperty changed.

---
 src/Ursa/Controls/TagInput/TagInput.cs | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/Ursa/Controls/TagInput/TagInput.cs b/src/Ursa/Controls/TagInput/TagInput.cs
index 920f01c..7b93b26 100644
--- a/src/Ursa/Controls/TagInput/TagInput.cs
+++ b/src/Ursa/Controls/TagInput/TagInput.cs
@@ -165,10 +165,14 @@ public class TagInput : TemplatedControl
     {
         var newTags = args.GetNewValue<IList<string>>();
         var oldTags = args.GetOldValue<IList<string>>();
-        for (int i = 0; i < Items.Count - 1; i++)
+        
+        // remove all tags except the textbox
+        int count = Items.Count;
+        for (int i = 0; i < count - 1; i++)
         {
-            Items.RemoveAt(Items.Count - 1);
+            Items.RemoveAt(0);
         }
+        
         if (newTags != null)
         {
             for (int i = 0; i < newTags.Count; i++)

From 1f86569ce5583c4c44c139366c7b94375d4467c4 Mon Sep 17 00:00:00 2001
From: Dameng <313880747@qq.com>
Date: Mon, 20 May 2024 16:11:51 +0800
Subject: [PATCH 2/2] prefer AvaloniaList.RemoveRange for the performance.

---
 src/Ursa/Controls/TagInput/TagInput.cs | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/Ursa/Controls/TagInput/TagInput.cs b/src/Ursa/Controls/TagInput/TagInput.cs
index 7b93b26..30773d4 100644
--- a/src/Ursa/Controls/TagInput/TagInput.cs
+++ b/src/Ursa/Controls/TagInput/TagInput.cs
@@ -166,11 +166,14 @@ public class TagInput : TemplatedControl
         var newTags = args.GetNewValue<IList<string>>();
         var oldTags = args.GetOldValue<IList<string>>();
         
-        // remove all tags except the textbox
-        int count = Items.Count;
-        for (int i = 0; i < count - 1; i++)
+        if (Items is AvaloniaList<object> avaloniaList)
         {
-            Items.RemoveAt(0);
+            avaloniaList.RemoveRange(0, avaloniaList.Count - 1);
+        }
+        else if (Items.Count != 0)
+        {
+            Items.Clear();
+            Items.Add(_textBox);
         }
         
         if (newTags != null)