diff --git a/Bin/net40/SunnyUI.Demo.exe b/Bin/net40/SunnyUI.Demo.exe
index 07200793..afb31860 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 fe25e654..31dfc256 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 04aa57dd..56c31233 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 53efeec9..e99b5985 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 64307fa3..b86a7d93 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 5e7bed47..c356e2f6 100644
--- a/SunnyUI.Demo/Controls/FTextBox.Designer.cs
+++ b/SunnyUI.Demo/Controls/FTextBox.Designer.cs
@@ -80,6 +80,7 @@
             this.uiIntegerUpDown1.Size = new System.Drawing.Size(150, 29);
             this.uiIntegerUpDown1.TabIndex = 2;
             this.uiIntegerUpDown1.Text = "_uiIntegerUpDown1";
+            this.uiIntegerUpDown1.TextAlignment = System.Drawing.ContentAlignment.MiddleCenter;
             // 
             // uiTextBox1
             // 
@@ -95,6 +96,7 @@
             this.uiTextBox1.Padding = new System.Windows.Forms.Padding(5);
             this.uiTextBox1.Size = new System.Drawing.Size(221, 29);
             this.uiTextBox1.TabIndex = 3;
+            this.uiTextBox1.TextAlignment = System.Drawing.ContentAlignment.MiddleLeft;
             this.uiTextBox1.Watermark = "水印文字";
             // 
             // uiLabel1
@@ -137,6 +139,7 @@
             this.uiTextBox2.Size = new System.Drawing.Size(221, 29);
             this.uiTextBox2.TabIndex = 5;
             this.uiTextBox2.Text = "5";
+            this.uiTextBox2.TextAlignment = System.Drawing.ContentAlignment.MiddleLeft;
             this.uiTextBox2.Type = Sunny.UI.UITextBox.UIEditType.Integer;
             this.uiTextBox2.Watermark = "水印文字";
             // 
@@ -166,6 +169,7 @@
             this.uiTextBox3.Padding = new System.Windows.Forms.Padding(5);
             this.uiTextBox3.Size = new System.Drawing.Size(221, 29);
             this.uiTextBox3.TabIndex = 7;
+            this.uiTextBox3.TextAlignment = System.Drawing.ContentAlignment.MiddleLeft;
             this.uiTextBox3.Type = Sunny.UI.UITextBox.UIEditType.Double;
             this.uiTextBox3.Watermark = "水印文字";
             // 
@@ -179,6 +183,7 @@
             this.uiDoubleUpDown1.Size = new System.Drawing.Size(150, 29);
             this.uiDoubleUpDown1.TabIndex = 14;
             this.uiDoubleUpDown1.Text = "uiDoubleUpDown1";
+            this.uiDoubleUpDown1.TextAlignment = System.Drawing.ContentAlignment.MiddleCenter;
             this.uiDoubleUpDown1.Value = 0D;
             // 
             // uiLine1
@@ -230,6 +235,7 @@
             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！！！";
+            this.uiRichTextBox1.TextAlignment = System.Drawing.ContentAlignment.MiddleCenter;
             // 
             // uiContextMenuStrip1
             // 
@@ -285,11 +291,11 @@
             this.uiTextBox4.Text = "Blog: https://www.cnblogs.com/yhuse\r\nGitee: https://gitee.com/yhuse/SunnyUI\r\nGitH" +
     "ub: https://github.com/yhuse/SunnyUI\r\nSunnyUI.Net 系列文章目录\r\n欢迎交流，QQ群： 56829229 (Su" +
     "nnyUI技术交流群)，请给源码项目点个Star吧！！！";
+            this.uiTextBox4.TextAlignment = System.Drawing.ContentAlignment.MiddleLeft;
             this.uiTextBox4.Watermark = "水印文字";
             // 
             // FTextBox
             // 
-            this.AutoScaleDimensions = new System.Drawing.SizeF(10F, 21F);
             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.None;
             this.ClientSize = new System.Drawing.Size(800, 565);
             this.Name = "FTextBox";
diff --git a/SunnyUI/Controls/UIPanel.cs b/SunnyUI/Controls/UIPanel.cs
index 33469971..e2f79942 100644
--- a/SunnyUI/Controls/UIPanel.cs
+++ b/SunnyUI/Controls/UIPanel.cs
@@ -602,18 +602,14 @@ namespace Sunny.UI
         /// 文字对齐方向
         /// </summary>
         [Description("文字对齐方向"), Category("SunnyUI")]
-        [DefaultValue(ContentAlignment.MiddleCenter)]
         public ContentAlignment TextAlignment
         {
             get => _textAlignment;
             set
             {
-                if (_textAlignment != value)
-                {
-                    _textAlignment = value;
-                    TextAlignmentChange?.Invoke(this, value);
-                    Invalidate();
-                }
+                _textAlignment = value;
+                TextAlignmentChange?.Invoke(this, value);
+                Invalidate();
             }
         }
 
diff --git a/SunnyUI/Controls/UITextBox.cs b/SunnyUI/Controls/UITextBox.cs
index 735f2098..655313f6 100644
--- a/SunnyUI/Controls/UITextBox.cs
+++ b/SunnyUI/Controls/UITextBox.cs
@@ -72,6 +72,7 @@ namespace Sunny.UI
             bar.ValueChanged += Bar_ValueChanged;
             edit.MouseWheel += OnMouseWheel;
             bar.MouseEnter += Bar_MouseEnter;
+            base.TextAlignment = ContentAlignment.MiddleLeft;
 
             SizeChange();