diff --git a/Bin/net40/SunnyUI.dll b/Bin/net40/SunnyUI.dll
index a56496c5..4e65c8a7 100644
Binary files a/Bin/net40/SunnyUI.dll and b/Bin/net40/SunnyUI.dll differ
diff --git a/Bin/net45/SunnyUI.dll b/Bin/net45/SunnyUI.dll
index 2c90e1e2..679993ea 100644
Binary files a/Bin/net45/SunnyUI.dll and b/Bin/net45/SunnyUI.dll differ
diff --git a/Bin/net5.0-windows/SunnyUI.dll b/Bin/net5.0-windows/SunnyUI.dll
index 03086e49..7494450f 100644
Binary files a/Bin/net5.0-windows/SunnyUI.dll and b/Bin/net5.0-windows/SunnyUI.dll differ
diff --git a/Bin/net5.0-windows/ref/SunnyUI.dll b/Bin/net5.0-windows/ref/SunnyUI.dll
index a8c86694..f0d11e4e 100644
Binary files a/Bin/net5.0-windows/ref/SunnyUI.dll and b/Bin/net5.0-windows/ref/SunnyUI.dll differ
diff --git a/Bin/netcoreapp3.1/SunnyUI.dll b/Bin/netcoreapp3.1/SunnyUI.dll
index 39107b17..d31ab283 100644
Binary files a/Bin/netcoreapp3.1/SunnyUI.dll and b/Bin/netcoreapp3.1/SunnyUI.dll differ
diff --git a/SunnyUI/Controls/UIPipe.cs b/SunnyUI/Controls/UIPipe.cs
index 9bdfbc93..34df47e3 100644
--- a/SunnyUI/Controls/UIPipe.cs
+++ b/SunnyUI/Controls/UIPipe.cs
@@ -20,6 +20,7 @@
 ******************************************************************************/
 
 using System;
+using System.Collections.Generic;
 using System.ComponentModel;
 using System.Drawing;
 using System.Drawing.Drawing2D;
@@ -37,6 +38,18 @@ namespace Sunny.UI
             fillColor = Color.White;
             StyleCustomMode = true;
             Style = UIStyle.Custom;
+            Width = 200;
+            Height = 16;
+        }
+
+        private List<UIPipe> linked = new List<UIPipe>();
+
+        public void Link(UIPipe pipe)
+        {
+            if (linked.IndexOf(pipe) < 0)
+            {
+                linked.Add(pipe);
+            }
         }
 
         private UILine.LineDirection direction = UILine.LineDirection.Horizontal;
@@ -48,9 +61,25 @@ namespace Sunny.UI
             get => direction;
             set
             {
-                Radius = 0;
-                direction = value;
-                Invalidate();
+                if (direction != value)
+                {
+                    Radius = 0;
+                    direction = value;
+
+                    if (direction == UILine.LineDirection.Horizontal)
+                    {
+                        Width = 200;
+                        Height = 16;
+                    }
+
+                    if (direction == UILine.LineDirection.Vertical)
+                    {
+                        Width = 16;
+                        Height = 200;
+                    }
+
+                    Invalidate();
+                }
             }
         }
 
@@ -368,6 +397,8 @@ namespace Sunny.UI
                             g.DrawLine(colors[idx], 0, Height - i, Width - i, Height - i);
                     }
                 }
+
+
             }
 
             PaintFlow(g);
diff --git a/SunnyUI/Style/UIStyle.cs b/SunnyUI/Style/UIStyle.cs
index e20b3eb4..2258a9bd 100644
--- a/SunnyUI/Style/UIStyle.cs
+++ b/SunnyUI/Style/UIStyle.cs
@@ -797,6 +797,8 @@ namespace Sunny.UI
                 if (obj is UIFlowLayoutPanel) continue;
                 if (obj is UIPanel) continue;
 
+                if (obj is TableLayoutPanel) continue;
+
                 if (obj.Controls.Count > 0)
                 {
                     values.AddRange(obj.GetUIStyleControls(interfaceName));
@@ -835,21 +837,23 @@ namespace Sunny.UI
                 {
                     if (control is IStyleInterface item)
                     {
-                        item.Style = style;
+                        if (!item.StyleCustomMode)
+                            item.Style = style;
                     }
                 }
 
                 return;
             }
 
-            if (e.Control is TableLayoutPanel)
+            if (e.Control is FlowLayoutPanel)
             {
                 List<Control> controls = e.Control.GetUIStyleControls("IStyleInterface");
                 foreach (var control in controls)
                 {
                     if (control is IStyleInterface item)
                     {
-                        item.Style = style;
+                        if (!item.StyleCustomMode)
+                            item.Style = style;
                     }
                 }
 
@@ -863,7 +867,8 @@ namespace Sunny.UI
                 {
                     if (control is IStyleInterface item)
                     {
-                        item.Style = style;
+                        if (!item.StyleCustomMode)
+                            item.Style = style;
                     }
                 }
             }