From 5540eedbcfab223b42c78346aa3dae2493953dbf Mon Sep 17 00:00:00 2001
From: NaBian <836904362@qq.com>
Date: Sun, 20 Mar 2022 15:09:42 +0800
Subject: [PATCH] fix: fixed a measure issue of RelativePanel

---
 .../Controls/Panel/RelativePanel.cs                    | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/Shared/HandyControl_Shared/Controls/Panel/RelativePanel.cs b/src/Shared/HandyControl_Shared/Controls/Panel/RelativePanel.cs
index 2d379b18..410341a7 100644
--- a/src/Shared/HandyControl_Shared/Controls/Panel/RelativePanel.cs
+++ b/src/Shared/HandyControl_Shared/Controls/Panel/RelativePanel.cs
@@ -417,10 +417,18 @@ public class RelativePanel : Panel
 
         public void Measure(Size availableSize)
         {
-            AvailableSize = availableSize;
+            AvailableSize = EnsureValidSize(availableSize);
             Measure(_nodeDic.Values, null);
         }
 
+        private static Size EnsureValidSize(Size size)
+        {
+            var width = double.IsInfinity(size.Width) ? 0 : size.Width;
+            var height = double.IsInfinity(size.Height) ? 0 : size.Height;
+
+            return new Size(width, height);
+        }
+
         private void Measure(IEnumerable<GraphNode> nodes, HashSet<DependencyObject> set)
         {
             set ??= new HashSet<DependencyObject>();