diff --git a/Bin/net40/SunnyUI.Demo.exe b/Bin/net40/SunnyUI.Demo.exe
index 783ddb8e..92eb6ca5 100644
Binary files a/Bin/net40/SunnyUI.Demo.exe and b/Bin/net40/SunnyUI.Demo.exe differ
diff --git a/Bin/net40/SunnyUI.dll b/Bin/net40/SunnyUI.dll
index 8959fec2..d9d2ad21 100644
Binary files a/Bin/net40/SunnyUI.dll and b/Bin/net40/SunnyUI.dll differ
diff --git a/SunnyUI/Controls/UIHeaderButton.cs b/SunnyUI/Controls/UIHeaderButton.cs
index 6362ef98..6c3ea7a0 100644
--- a/SunnyUI/Controls/UIHeaderButton.cs
+++ b/SunnyUI/Controls/UIHeaderButton.cs
@@ -344,8 +344,11 @@ namespace Sunny.UI
             get => image;
             set
             {
-                image = value;
-                Invalidate();
+                if (image != value)
+                {
+                    image = value;
+                    Invalidate();
+                }
             }
         }
 
diff --git a/SunnyUI/Controls/UISymbolButton.cs b/SunnyUI/Controls/UISymbolButton.cs
index 6d05239c..c24928b9 100644
--- a/SunnyUI/Controls/UISymbolButton.cs
+++ b/SunnyUI/Controls/UISymbolButton.cs
@@ -150,11 +150,21 @@ namespace Sunny.UI
             base.SetStyleColor(uiColor);
         }
 
+        private Image image;
+
         [DefaultValue(null)]
         [Description("图片"), Category("SunnyUI")]
         public Image Image
         {
-            get; set;
+            get => image;
+            set
+            {
+                if (image != value)
+                {
+                    image = value;
+                    Invalidate();
+                }
+            }
         }
 
         private ContentAlignment imageAlign = ContentAlignment.MiddleCenter;