diff --git a/SunnyUI/Controls/UINavMenu.cs b/SunnyUI/Controls/UINavMenu.cs
index 6dd716b4..de7812b7 100644
--- a/SunnyUI/Controls/UINavMenu.cs
+++ b/SunnyUI/Controls/UINavMenu.cs
@@ -151,7 +151,22 @@ namespace Sunny.UI
                 }
             }
         }
+        /// <summary>
+        /// SizeChange导致treeNode闪屏
+        /// </summary>
+        protected override CreateParams CreateParams
+        {
+            get
+            {
+                CreateParams cp = base.CreateParams;
+                if (!DesignMode)
+                {
+                    cp.ExStyle |= 0x02000000;
+                }
+                return cp;
 
+            }
+        }
         protected override void OnSizeChanged(EventArgs e)
         {
             base.OnSizeChanged(e);