From 9afb1913d743845fc272f61b7f78396929d55858 Mon Sep 17 00:00:00 2001
From: NaBian <836904362@qq.com>
Date: Sat, 15 Oct 2022 20:06:13 +0800
Subject: [PATCH] chore: close #947

---
 .../Controls/Other/TransitioningContentControl.cs    | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/Shared/HandyControl_Shared/Controls/Other/TransitioningContentControl.cs b/src/Shared/HandyControl_Shared/Controls/Other/TransitioningContentControl.cs
index d7cc4e60..bac3d73d 100644
--- a/src/Shared/HandyControl_Shared/Controls/Other/TransitioningContentControl.cs
+++ b/src/Shared/HandyControl_Shared/Controls/Other/TransitioningContentControl.cs
@@ -104,4 +104,16 @@ public class TransitioningContentControl : ContentControl
 
         StartTransition();
     }
+
+    protected override void OnContentChanged(object oldContent, object newContent)
+    {
+        base.OnContentChanged(oldContent, newContent);
+
+        if (newContent is null)
+        {
+            return;
+        }
+
+        StartTransition();
+    }
 }