♻️ 开启虚拟化防止卡顿, 增加自适应宽度

CustomComponent/VirtualizingWrapPanel/ItemRange.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace GeekDesk.CustomComponent.VirtualizingWrapPanel
+{
+    public struct ItemRange
+    {
+        public int StartIndex { get; }
+        public int EndIndex { get; }
+
+        public ItemRange(int startIndex, int endIndex) : this()
+        {
+            StartIndex = startIndex;
+            EndIndex = endIndex;
+        }
+
+        public bool Contains(int itemIndex)
+        {
+            return itemIndex >= StartIndex && itemIndex <= EndIndex;
+        }
+    }
+}