diff --git a/Bin/net40/SunnyUI.Demo.exe b/Bin/net40/SunnyUI.Demo.exe
index 413eaeb2..ba5a3c17 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 be2a3512..c6d41eee 100644
Binary files a/Bin/net40/SunnyUI.dll and b/Bin/net40/SunnyUI.dll differ
diff --git a/Bin/net5.0-windows/SunnyUI.dll b/Bin/net5.0-windows/SunnyUI.dll
index d3b9d750..e988e830 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 022dd63f..c65580e0 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 8fcf5192..7a087e00 100644
Binary files a/Bin/netcoreapp3.1/SunnyUI.dll and b/Bin/netcoreapp3.1/SunnyUI.dll differ
diff --git a/SunnyUI.Demo/Controls/FTextBox.Designer.cs b/SunnyUI.Demo/Controls/FTextBox.Designer.cs
index cb590b1b..830a747b 100644
--- a/SunnyUI.Demo/Controls/FTextBox.Designer.cs
+++ b/SunnyUI.Demo/Controls/FTextBox.Designer.cs
@@ -40,11 +40,11 @@
             this.uiLine4 = new Sunny.UI.UILine();
             this.uiLine5 = new Sunny.UI.UILine();
             this.uiRichTextBox1 = new Sunny.UI.UIRichTextBox();
+            this.uiContextMenuStrip1 = new Sunny.UI.UIContextMenuStrip();
+            this.aaToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
             this.uiLine2 = new Sunny.UI.UILine();
             this.uiLine3 = new Sunny.UI.UILine();
             this.uiTextBox4 = new Sunny.UI.UITextBox();
-            this.uiContextMenuStrip1 = new Sunny.UI.UIContextMenuStrip();
-            this.aaToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
             this.PagePanel.SuspendLayout();
             this.uiContextMenuStrip1.SuspendLayout();
             this.SuspendLayout();
@@ -230,6 +230,20 @@
             this.uiRichTextBox1.Text = "Blog: https://www.cnblogs.com/yhuse\nGitee: https://gitee.com/yhuse/SunnyUI\nGitHub" +
     ": https://github.com/yhuse/SunnyUI\nSunnyUI.Net 系列文章目录\n欢迎交流，QQ群： 56829229 (SunnyU" +
     "I技术交流群)，请给源码项目点个Star吧！！！";
+            // 
+            // uiContextMenuStrip1
+            // 
+            this.uiContextMenuStrip1.Font = new System.Drawing.Font("微软雅黑", 12F);
+            this.uiContextMenuStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
+            this.aaToolStripMenuItem});
+            this.uiContextMenuStrip1.Name = "uiContextMenuStrip1";
+            this.uiContextMenuStrip1.Size = new System.Drawing.Size(99, 30);
+            // 
+            // aaToolStripMenuItem
+            // 
+            this.aaToolStripMenuItem.Name = "aaToolStripMenuItem";
+            this.aaToolStripMenuItem.Size = new System.Drawing.Size(98, 26);
+            this.aaToolStripMenuItem.Text = "aa";
             // 
             // uiLine2
             // 
@@ -273,20 +287,6 @@
     "nnyUI技术交流群)，请给源码项目点个Star吧！！！";
             this.uiTextBox4.Watermark = "水印文字";
             // 
-            // uiContextMenuStrip1
-            // 
-            this.uiContextMenuStrip1.Font = new System.Drawing.Font("微软雅黑", 12F);
-            this.uiContextMenuStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
-            this.aaToolStripMenuItem});
-            this.uiContextMenuStrip1.Name = "uiContextMenuStrip1";
-            this.uiContextMenuStrip1.Size = new System.Drawing.Size(99, 30);
-            // 
-            // aaToolStripMenuItem
-            // 
-            this.aaToolStripMenuItem.Name = "aaToolStripMenuItem";
-            this.aaToolStripMenuItem.Size = new System.Drawing.Size(98, 26);
-            this.aaToolStripMenuItem.Text = "aa";
-            // 
             // FTextBox
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(10F, 21F);
diff --git a/SunnyUI/Controls/UITextBox.cs b/SunnyUI/Controls/UITextBox.cs
index fd667515..78d0f5d4 100644
--- a/SunnyUI/Controls/UITextBox.cs
+++ b/SunnyUI/Controls/UITextBox.cs
@@ -84,6 +84,13 @@ namespace Sunny.UI
             Leave?.Invoke(sender, e);
         }
 
+        protected override void OnEnabledChanged(EventArgs e)
+        {
+            base.OnEnabledChanged(e);
+            edit.BackColor = Enabled ? Color.White : FillDisableColor;
+            edit.Enabled = Enabled;
+        }
+
         public override bool Focused
         {
             get => edit.Focused;
@@ -376,7 +383,7 @@ namespace Sunny.UI
             set
             {
                 edit.ReadOnly = value;
-                edit.BackColor = Color.White;
+                edit.BackColor = Enabled ? Color.White : FillDisableColor;
             }
         }
 
@@ -495,7 +502,7 @@ namespace Sunny.UI
             base.SetStyleColor(uiColor);
             if (uiColor.IsCustom()) return;
 
-            edit.BackColor = fillColor = Color.White;
+            edit.BackColor = fillColor = Enabled ? Color.White : FillDisableColor;
             edit.ForeColor = foreColor = UIFontColor.Primary;
 
             if (bar != null)
@@ -518,7 +525,7 @@ namespace Sunny.UI
         protected override void AfterSetFillColor(Color color)
         {
             base.AfterSetFillColor(color);
-            edit.BackColor = color;
+            edit.BackColor = Enabled ? color : FillDisableColor;
         }
 
         public enum UIEditType