diff --git a/SunnyUI/Controls/UIDataGridView.cs b/SunnyUI/Controls/UIDataGridView.cs
index 2a4a95e6..dd8ae6e9 100644
--- a/SunnyUI/Controls/UIDataGridView.cs
+++ b/SunnyUI/Controls/UIDataGridView.cs
@@ -592,11 +592,15 @@ namespace Sunny.UI
         /// 是否显示表格线
         /// </summary>
         [Description("是否显示表格线"), Category("SunnyUI")]
-        [DefaultValue(false)]
+        [DefaultValue(true)]
         public bool ShowGridLine
         {
             get => CellBorderStyle == DataGridViewCellBorderStyle.Single;
-            set => CellBorderStyle = value ? DataGridViewCellBorderStyle.Single : DataGridViewCellBorderStyle.None;
+            set
+            {
+                CellBorderStyle = value ? DataGridViewCellBorderStyle.Single : DataGridViewCellBorderStyle.None;
+                VBar.ShowLeftLine = value;
+            }
         }
 
         private Color _rectColor = UIColor.Blue;
diff --git a/SunnyUI/Controls/UINavBar.cs b/SunnyUI/Controls/UINavBar.cs
index 78821cf3..47daf3db 100644
--- a/SunnyUI/Controls/UINavBar.cs
+++ b/SunnyUI/Controls/UINavBar.cs
@@ -22,6 +22,7 @@
  * 2021-06-08: V3.0.4 标题选中高亮颜色增加可调整高度
  * 2021-08-07: V3.0.5 显示/隐藏子节点提示箭头，增加选中项圆角
  * 2022-03-19: V3.1.1 重构主题配色
+ * 2022-04-14: V3.1.3 重构扩展函数
 ******************************************************************************/
 
 using System;
@@ -133,31 +134,6 @@ namespace Sunny.UI
         [Description("关联的TabControl"), Category("SunnyUI")]
         public UITabControl TabControl { get; set; }
 
-        public void SetNodeItem(TreeNode node, NavMenuItem item)
-        {
-            MenuHelper.Add(node, item);
-        }
-
-        public void SetNodePageIndex(TreeNode node, int pageIndex)
-        {
-            MenuHelper.SetPageIndex(node, pageIndex);
-        }
-
-        public int GetPageIndex(TreeNode node)
-        {
-            return MenuHelper.GetPageIndex(node);
-        }
-
-        public void SetNodeSymbol(TreeNode node, int symbol, int symbolSize = 24)
-        {
-            MenuHelper.SetSymbol(node, symbol, symbolSize);
-        }
-
-        public void SetNodeImageIndex(TreeNode node, int imageIndex)
-        {
-            node.ImageIndex = imageIndex;
-        }
-
         /// <summary>
         /// Tag字符串
         /// </summary>
@@ -407,12 +383,12 @@ namespace Sunny.UI
                 if (Nodes.Count > 0 && value >= 0 && value < Nodes.Count)
                 {
                     selectedIndex = value;
-                    NodeMouseClick?.Invoke(Nodes[SelectedIndex], selectedIndex, MenuHelper.GetPageIndex(Nodes[SelectedIndex]));
+                    NodeMouseClick?.Invoke(Nodes[SelectedIndex], selectedIndex, GetPageIndex(Nodes[SelectedIndex]));
 
                     if (Nodes[value].Nodes.Count == 0)
                     {
-                        MenuItemClick?.Invoke(Nodes[SelectedIndex].Text, selectedIndex, MenuHelper.GetPageIndex(Nodes[SelectedIndex]));
-                        TabControl?.SelectPage(MenuHelper.GetPageIndex(Nodes[SelectedIndex]));
+                        MenuItemClick?.Invoke(Nodes[SelectedIndex].Text, selectedIndex, GetPageIndex(Nodes[SelectedIndex]));
+                        TabControl?.SelectPage(GetPageIndex(Nodes[SelectedIndex]));
                     }
 
                     Invalidate();
@@ -692,9 +668,9 @@ namespace Sunny.UI
             ToolStripMenuItem item = (ToolStripMenuItem)sender;
             if (item.Tag != null && item.Tag is TreeNode node)
             {
-                TabControl?.SelectPage(MenuHelper.GetPageIndex(node));
-                MenuItemClick?.Invoke(item.Text, selectedIndex, MenuHelper.GetPageIndex(node));
-                NodeMouseClick?.Invoke(node, selectedIndex, MenuHelper.GetPageIndex(node));
+                TabControl?.SelectPage(GetPageIndex(node));
+                MenuItemClick?.Invoke(item.Text, selectedIndex, GetPageIndex(node));
+                NodeMouseClick?.Invoke(node, selectedIndex, GetPageIndex(node));
             }
         }
 
@@ -748,59 +724,68 @@ namespace Sunny.UI
 
         public string Version { get; }
 
+        #region 扩展函数
+
+        public UINavBar SetNodePageIndex(TreeNode node, int pageIndex)
+        {
+            MenuHelper.SetPageIndex(node, pageIndex);
+            return this;
+        }
+
+        public UINavBar SetNodeSymbol(TreeNode node, int symbol, int symbolSize = 24)
+        {
+            MenuHelper.SetSymbol(node, symbol, symbolSize);
+            return this;
+        }
+
+        public UINavBar SetNodeImageIndex(TreeNode node, int imageIndex)
+        {
+            node.ImageIndex = imageIndex;
+            return this;
+        }
+
         public TreeNode CreateNode(string text, int pageIndex)
         {
             return CreateNode(new NavMenuItem(text, pageIndex));
         }
 
+        public TreeNode CreateNode(string text, Guid pageGuid)
+        {
+            return CreateNode(new NavMenuItem(text, pageGuid));
+        }
+
         public TreeNode CreateNode(UIPage page)
         {
             return CreateNode(new NavMenuItem(page));
         }
 
-        public TreeNode CreateNode(NavMenuItem item)
-        {
-            TreeNode node = new TreeNode(item.Text);
-            Nodes.Add(node);
-            SetNodeItem(node, item);
-            return node;
-        }
-
-        public TreeNode CreateNode(string text, int imageIndex, int pageIndex)
-        {
-            return CreateNode(new NavMenuItem(text, pageIndex), imageIndex);
-        }
-
-        public TreeNode CreateNode(UIPage page, int imageIndex)
-        {
-            return CreateNode(new NavMenuItem(page), imageIndex);
-        }
-
-        public TreeNode CreateNode(NavMenuItem item, int imageIndex)
-        {
-            TreeNode node = new TreeNode(item.Text);
-            Nodes.Add(node);
-            SetNodeItem(node, item);
-            node.ImageIndex = imageIndex;
-            return node;
-        }
-
         public TreeNode CreateNode(string text, int symbol, int symbolSize, int pageIndex)
         {
-            return CreateNode(new NavMenuItem(text, pageIndex), symbol, symbolSize);
+            var node = CreateNode(text, pageIndex);
+            SetNodeSymbol(node, symbol, symbolSize);
+            return node;
         }
 
-        public TreeNode CreateNode(UIPage page, int symbol, int symbolSize)
+        public TreeNode CreateChildNode(TreeNode parent, string text, Guid pageGuid)
         {
-            return CreateNode(new NavMenuItem(page), symbol, symbolSize);
+            return CreateChildNode(parent, new NavMenuItem(text, pageGuid));
         }
 
-        public TreeNode CreateNode(NavMenuItem item, int symbol, int symbolSize)
+        public int GetPageIndex(TreeNode node)
+        {
+            return MenuHelper.GetPageIndex(node);
+        }
+
+        private void SetNodeItem(TreeNode node, NavMenuItem item)
+        {
+            MenuHelper.Add(node, item);
+        }
+
+        private TreeNode CreateNode(NavMenuItem item)
         {
             TreeNode node = new TreeNode(item.Text);
             Nodes.Add(node);
             SetNodeItem(node, item);
-            MenuHelper.SetSymbol(node, symbol, symbolSize);
             return node;
         }
 
@@ -814,7 +799,14 @@ namespace Sunny.UI
             return CreateChildNode(parent, new NavMenuItem(page));
         }
 
-        public TreeNode CreateChildNode(TreeNode parent, NavMenuItem item)
+        public TreeNode CreateChildNode(TreeNode parent, string text, int symbol, int symbolSize, int pageIndex)
+        {
+            var node = CreateChildNode(parent, text, pageIndex);
+            SetNodeSymbol(node, symbol, symbolSize);
+            return node;
+        }
+
+        private TreeNode CreateChildNode(TreeNode parent, NavMenuItem item)
         {
             TreeNode childNode = new TreeNode(item.Text);
             parent.Nodes.Add(childNode);
@@ -822,42 +814,6 @@ namespace Sunny.UI
             return childNode;
         }
 
-        public TreeNode CreateChildNode(TreeNode parent, int imageIndex, string text, int pageIndex)
-        {
-            return CreateChildNode(parent, imageIndex, new NavMenuItem(text, pageIndex));
-        }
-
-        public TreeNode CreateChildNode(TreeNode parent, int imageIndex, UIPage page)
-        {
-            return CreateChildNode(parent, imageIndex, new NavMenuItem(page));
-        }
-
-        public TreeNode CreateChildNode(TreeNode parent, int imageIndex, NavMenuItem item)
-        {
-            TreeNode childNode = new TreeNode(item.Text);
-            parent.Nodes.Add(childNode);
-            SetNodeItem(childNode, item);
-            childNode.ImageIndex = imageIndex;
-            return childNode;
-        }
-
-        public TreeNode CreateChildNode(TreeNode parent, int symbol, int symbolSize, string text, int pageIndex)
-        {
-            return CreateChildNode(parent, symbol, symbolSize, new NavMenuItem(text, pageIndex));
-        }
-
-        public TreeNode CreateChildNode(TreeNode parent, int symbol, int symbolSize, UIPage page)
-        {
-            return CreateChildNode(parent, symbol, symbolSize, new NavMenuItem(page));
-        }
-
-        public TreeNode CreateChildNode(TreeNode parent, int symbol, int symbolSize, NavMenuItem item)
-        {
-            TreeNode childNode = new TreeNode(item.Text);
-            parent.Nodes.Add(childNode);
-            SetNodeItem(childNode, item);
-            MenuHelper.SetSymbol(childNode, symbol, symbolSize);
-            return childNode;
-        }
+        #endregion 扩展函数
     }
 }
\ No newline at end of file
diff --git a/SunnyUI/Controls/UINavMenu.cs b/SunnyUI/Controls/UINavMenu.cs
index be8df451..7b4abd33 100644
--- a/SunnyUI/Controls/UINavMenu.cs
+++ b/SunnyUI/Controls/UINavMenu.cs
@@ -26,6 +26,7 @@
  * 2022-01-02: V3.0.9 滚动条可设置颜色
  * 2022-03-19: V3.1.1 重构主题配色
  * 2022-03-24: V3.1.1 修复TipsText显示位置
+ * 2022-04-14: V3.1.3 重构扩展函数
 ******************************************************************************/
 
 using System;
@@ -554,43 +555,6 @@ namespace Sunny.UI
             set => checkBoxes = false;
         }
 
-        private readonly NavMenuHelper MenuHelper = new NavMenuHelper();
-
-        public int GetPageIndex(TreeNode node)
-        {
-            return MenuHelper.GetPageIndex(node);
-        }
-
-        public void SetNodeItem(TreeNode node, NavMenuItem item)
-        {
-            MenuHelper.Add(node, item);
-        }
-
-        public void SetNodePageIndex(TreeNode node, int pageIndex)
-        {
-            MenuHelper.SetPageIndex(node, pageIndex);
-        }
-
-        public void SetNodeTipsText(TreeNode node, string nodeTipsText)
-        {
-            MenuHelper.SetTipsText(node, nodeTipsText);
-        }
-
-        public void SetNodeTipsText(TreeNode node, string nodeTipsText, Color nodeTipsBackColor, Color nodeTipsForeColor)
-        {
-            MenuHelper.SetTipsText(node, nodeTipsText, nodeTipsBackColor, nodeTipsForeColor);
-        }
-
-        public void SetNodeSymbol(TreeNode node, int symbol, int symbolSize = 24)
-        {
-            MenuHelper.SetSymbol(node, symbol, symbolSize);
-        }
-
-        public void SetNodeImageIndex(TreeNode node, int imageIndex)
-        {
-            node.ImageIndex = imageIndex;
-        }
-
         private bool showSecondBackColor;
 
         [DefaultValue(false)]
@@ -882,26 +846,6 @@ namespace Sunny.UI
             ShowSelectedNode();
         }
 
-        public void SelectPage(int pageIndex)
-        {
-            var node = MenuHelper.GetTreeNode(pageIndex);
-            if (node != null)
-            {
-                SelectedNode = node;
-                ShowSelectedNode();
-            }
-        }
-
-        public void SelectPage(Guid pageGuid)
-        {
-            var node = MenuHelper.GetTreeNode(pageGuid);
-            if (node != null)
-            {
-                SelectedNode = node;
-                ShowSelectedNode();
-            }
-        }
-
         private void ShowSelectedNode()
         {
             NavMenuItem item = MenuHelper[SelectedNode];
@@ -920,12 +864,7 @@ namespace Sunny.UI
                 }
             }
 
-            MenuItemClick?.Invoke(SelectedNode, MenuHelper[SelectedNode], MenuHelper.GetPageIndex(SelectedNode));
-        }
-
-        public TreeNode GetTreeNode(int pageIndex)
-        {
-            return MenuHelper.GetTreeNode(pageIndex);
+            MenuItemClick?.Invoke(SelectedNode, MenuHelper[SelectedNode], GetPageIndex(SelectedNode));
         }
 
         protected override void OnMouseWheel(MouseEventArgs e)
@@ -1028,64 +967,99 @@ namespace Sunny.UI
             Win32.User.ShowScrollBar(Handle, 3, false);
         }
 
+        #region 扩展函数
+        private readonly NavMenuHelper MenuHelper = new NavMenuHelper();
+
+        public void SelectPage(int pageIndex)
+        {
+            var node = MenuHelper.GetTreeNode(pageIndex);
+            if (node != null)
+            {
+                SelectedNode = node;
+                ShowSelectedNode();
+            }
+        }
+
+        public void SelectPage(Guid pageGuid)
+        {
+            var node = MenuHelper.GetTreeNode(pageGuid);
+            if (node != null)
+            {
+                SelectedNode = node;
+                ShowSelectedNode();
+            }
+        }
+
+        public int GetPageIndex(TreeNode node)
+        {
+            return MenuHelper.GetPageIndex(node);
+        }
+
+        public TreeNode GetTreeNode(int pageIndex)
+        {
+            return MenuHelper.GetTreeNode(pageIndex);
+        }
+
+        private void SetNodeItem(TreeNode node, NavMenuItem item)
+        {
+            MenuHelper.Add(node, item);
+        }
+
+        public UINavMenu SetNodePageIndex(TreeNode node, int pageIndex)
+        {
+            MenuHelper.SetPageIndex(node, pageIndex);
+            return this;
+        }
+
+        public UINavMenu SetNodeSymbol(TreeNode node, int symbol, int symbolSize = 24)
+        {
+            MenuHelper.SetSymbol(node, symbol, symbolSize);
+            return this;
+        }
+
+        public UINavMenu SetNodeImageIndex(TreeNode node, int imageIndex)
+        {
+            node.ImageIndex = imageIndex;
+            return this;
+        }
+
+        public void SetNodeTipsText(TreeNode node, string nodeTipsText)
+        {
+            MenuHelper.SetTipsText(node, nodeTipsText);
+        }
+
+        public void SetNodeTipsText(TreeNode node, string nodeTipsText, Color nodeTipsBackColor, Color nodeTipsForeColor)
+        {
+            MenuHelper.SetTipsText(node, nodeTipsText, nodeTipsBackColor, nodeTipsForeColor);
+        }
+
         public TreeNode CreateNode(string text, int pageIndex)
         {
             return CreateNode(new NavMenuItem(text, pageIndex));
         }
 
+        public TreeNode CreateNode(string text, Guid pageGuid)
+        {
+            return CreateNode(new NavMenuItem(text, pageGuid));
+        }
+
         public TreeNode CreateNode(UIPage page)
         {
             return CreateNode(new NavMenuItem(page));
         }
 
-        public TreeNode CreateNode(NavMenuItem item)
-        {
-            TreeNode node = new TreeNode(item.Text);
-            Nodes.Add(node);
-            SetNodeItem(node, item);
-            return node;
-        }
-
-        public TreeNode CreateNode(string text, int imageIndex, int pageIndex)
-        {
-            return CreateNode(new NavMenuItem(text, pageIndex), imageIndex);
-        }
-
-        public TreeNode CreateNode(UIPage page, int imageIndex)
-        {
-            return CreateNode(new NavMenuItem(page), imageIndex);
-        }
-
-        public TreeNode CreateNode(NavMenuItem item, int imageIndex)
-        {
-            TreeNode node = new TreeNode(item.Text);
-            Nodes.Add(node);
-            SetNodeItem(node, item);
-            node.ImageIndex = imageIndex;
-            return node;
-        }
-
-        public TreeNode CreateNode(int symbol, int symbolSize, UIPage page)
-        {
-            return CreateNode(new NavMenuItem(page), symbol, symbolSize);
-        }
-
         public TreeNode CreateNode(string text, int symbol, int symbolSize, int pageIndex)
         {
-            return CreateNode(new NavMenuItem(text, pageIndex), symbol, symbolSize);
+            var node = CreateNode(text, pageIndex);
+            SetNodeSymbol(node, symbol, symbolSize);
+            return node;
         }
 
-        public TreeNode CreateNode(UIPage page, int symbol, int symbolSize)
-        {
-            return CreateNode(new NavMenuItem(page), symbol, symbolSize);
-        }
-
-        public TreeNode CreateNode(NavMenuItem item, int symbol, int symbolSize)
+        private TreeNode CreateNode(NavMenuItem item)
         {
             TreeNode node = new TreeNode(item.Text);
             Nodes.Add(node);
             SetNodeItem(node, item);
-            MenuHelper.SetSymbol(node, symbol, symbolSize);
             return node;
         }
 
@@ -1094,6 +1068,11 @@ namespace Sunny.UI
             return CreateChildNode(parent, new NavMenuItem(text, pageIndex));
         }
 
+        public TreeNode CreateChildNode(TreeNode parent, string text, Guid pageGuid)
+        {
+            return CreateChildNode(parent, new NavMenuItem(text, pageGuid));
+        }
+
         public TreeNode CreateChildNode(TreeNode parent, UIPage page)
         {
             var childNode = CreateChildNode(parent, new NavMenuItem(page));
@@ -1105,7 +1084,14 @@ namespace Sunny.UI
             return childNode;
         }
 
-        public TreeNode CreateChildNode(TreeNode parent, NavMenuItem item)
+        public TreeNode CreateChildNode(TreeNode parent, string text, int symbol, int symbolSize, int pageIndex)
+        {
+            var node = CreateChildNode(parent, text, pageIndex);
+            SetNodeSymbol(node, symbol, symbolSize);
+            return node;
+        }
+
+        private TreeNode CreateChildNode(TreeNode parent, NavMenuItem item)
         {
             TreeNode childNode = new TreeNode(item.Text);
             parent.Nodes.Add(childNode);
@@ -1113,44 +1099,6 @@ namespace Sunny.UI
             return childNode;
         }
 
-        public TreeNode CreateChildNode(TreeNode parent, int imageIndex, string text, int pageIndex)
-        {
-            return CreateChildNode(parent, imageIndex, new NavMenuItem(text, pageIndex));
-        }
-
-        public TreeNode CreateChildNode(TreeNode parent, int imageIndex, UIPage page)
-        {
-            return CreateChildNode(parent, imageIndex, new NavMenuItem(page));
-        }
-
-        public TreeNode CreateChildNode(TreeNode parent, int imageIndex, NavMenuItem item)
-        {
-            TreeNode childNode = new TreeNode(item.Text);
-            parent.Nodes.Add(childNode);
-            SetNodeItem(childNode, item);
-            childNode.ImageIndex = imageIndex;
-            return childNode;
-        }
-
-        public TreeNode CreateChildNode(TreeNode parent, int symbol, int symbolSize, string text, int pageIndex)
-        {
-            return CreateChildNode(parent, symbol, symbolSize, new NavMenuItem(text, pageIndex));
-        }
-
-        public TreeNode CreateChildNode(TreeNode parent, int symbol, int symbolSize, UIPage page)
-        {
-            return CreateChildNode(parent, symbol, symbolSize, new NavMenuItem(page));
-        }
-
-        public TreeNode CreateChildNode(TreeNode parent, int symbol, int symbolSize, NavMenuItem item)
-        {
-            TreeNode childNode = new TreeNode(item.Text);
-            parent.Nodes.Add(childNode);
-            SetNodeItem(childNode, item);
-            MenuHelper.SetSymbol(childNode, symbol, symbolSize);
-            return childNode;
-        }
-
         private readonly Dictionary<TreeNode, List<int>> TreeNodeSymbols = new Dictionary<TreeNode, List<int>>();
 
         public void AddNodeRightSymbol(TreeNode node, int symbol)
@@ -1184,6 +1132,8 @@ namespace Sunny.UI
             }
         }
 
+        #endregion 扩展函数
+
         public delegate void OnNodeRightSymbolClick(object sender, TreeNode node, int index, int symbol);
 
         public event OnNodeRightSymbolClick NodeRightSymbolClick;
diff --git a/SunnyUI/Controls/UINavMenuHelper.cs b/SunnyUI/Controls/UINavMenuHelper.cs
index 9f9abb41..7396b137 100644
--- a/SunnyUI/Controls/UINavMenuHelper.cs
+++ b/SunnyUI/Controls/UINavMenuHelper.cs
@@ -17,9 +17,9 @@
  * 创建日期: 2020-01-01
  *
  * 2020-01-01: V2.2.0 增加文件说明
+ * 2022-04-14: V3.1.3 重构扩展函数
 ******************************************************************************/
 
-
 using System;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
@@ -28,7 +28,7 @@ using System.Windows.Forms;
 
 namespace Sunny.UI
 {
-    public class NavMenuHelper
+    internal class NavMenuHelper
     {
         public NavMenuItem this[TreeNode node]
         {
@@ -326,12 +326,12 @@ namespace Sunny.UI
 
         private TabPage CreateTabIfNotExists(int pageIndex)
         {
-            return CreateTabIfNotExists(new NavMenuItem(pageIndex));
+            return CreateTabIfNotExists(new NavMenuItem("", pageIndex));
         }
 
         private TabPage CreateTabIfNotExists(Guid guid)
         {
-            return CreateTabIfNotExists(new NavMenuItem(guid));
+            return CreateTabIfNotExists(new NavMenuItem("", guid));
         }
 
         public bool SelectPage(int pageIndex)
@@ -532,14 +532,10 @@ namespace Sunny.UI
             Text = text;
         }
 
-        public NavMenuItem(int pageIndex)
-        {
-            PageIndex = pageIndex;
-        }
-
-        public NavMenuItem(Guid guid)
+        public NavMenuItem(string text, Guid guid)
         {
             PageGuid = guid;
+            Text = text;
         }
     }
 }
\ No newline at end of file
diff --git a/SunnyUI/Frames/UIPage.cs b/SunnyUI/Frames/UIPage.cs
index 6e96631f..924966e2 100644
--- a/SunnyUI/Frames/UIPage.cs
+++ b/SunnyUI/Frames/UIPage.cs
@@ -76,6 +76,24 @@ namespace Sunny.UI
             titleForeColor = UIStyles.Blue.PageTitleForeColor;
         }
 
+        public UIPage SetPageIndex(int pageIndex)
+        {
+            PageIndex = pageIndex;
+            return this;
+        }
+
+        public UIPage SetPageGuid(Guid pageGuid)
+        {
+            PageGuid = pageGuid;
+            return this;
+        }
+
+        public UIPage SetText(string text)
+        {
+            Text = text;
+            return this;
+        }
+
         [DefaultValue(false), Category("SunnyUI"), Description("禁止控件跟随窗体缩放")]
         public bool ZoomScaleDisabled { get; set; }