diff --git a/Bin/net40/SunnyUI.Demo.exe b/Bin/net40/SunnyUI.Demo.exe
index d041c2cc..98d0352a 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 4c2e24cf..6d2d7d8a 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 aa56024e..d8f93dde 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 b9667e77..0152c00e 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 cad3b8ca..a0237027 100644
Binary files a/Bin/netcoreapp3.1/SunnyUI.dll and b/Bin/netcoreapp3.1/SunnyUI.dll differ
diff --git a/SunnyUI/Controls/DropItem/UIDropControl.cs b/SunnyUI/Controls/DropItem/UIDropControl.cs
index f738224b..3ab01518 100644
--- a/SunnyUI/Controls/DropItem/UIDropControl.cs
+++ b/SunnyUI/Controls/DropItem/UIDropControl.cs
@@ -322,6 +322,7 @@ namespace Sunny.UI
         }
 
         [DefaultValue(false)]
+        [Description("是否只读"), Category("SunnyUI")]
         public bool ReadOnly
         {
             get => edit.ReadOnly;
diff --git a/SunnyUI/Controls/UICheckBox.cs b/SunnyUI/Controls/UICheckBox.cs
index 4fd71b66..32976103 100644
--- a/SunnyUI/Controls/UICheckBox.cs
+++ b/SunnyUI/Controls/UICheckBox.cs
@@ -30,7 +30,7 @@ using System.Windows.Forms;
 namespace Sunny.UI
 {
     [DefaultEvent("ValueChanged")]
-    [DefaultProperty("Text")]
+    [DefaultProperty("Checked")]
     [ToolboxItem(true)]
     public class UICheckBox : UIControl
     {
@@ -93,6 +93,7 @@ namespace Sunny.UI
         }
 
         [DefaultValue(false)]
+        [Description("是否只读"), Category("SunnyUI")]
         public bool ReadOnly { get; set; }
 
         /// <summary>
diff --git a/SunnyUI/Controls/UIGroupBox.cs b/SunnyUI/Controls/UIGroupBox.cs
index da943d86..62cdd3c0 100644
--- a/SunnyUI/Controls/UIGroupBox.cs
+++ b/SunnyUI/Controls/UIGroupBox.cs
@@ -27,6 +27,7 @@ using System.Windows.Forms;
 
 namespace Sunny.UI
 {
+    [DefaultProperty("Text")]
     public partial class UIGroupBox : UIPanel
     {
         public UIGroupBox()
diff --git a/SunnyUI/Controls/UIRadioButton.cs b/SunnyUI/Controls/UIRadioButton.cs
index 2de50ab3..058c6a8d 100644
--- a/SunnyUI/Controls/UIRadioButton.cs
+++ b/SunnyUI/Controls/UIRadioButton.cs
@@ -31,7 +31,7 @@ using System.Windows.Forms;
 namespace Sunny.UI
 {
     [DefaultEvent("ValueChanged")]
-    [DefaultProperty("Text")]
+    [DefaultProperty("Checked")]
     [ToolboxItem(true)]
     public sealed class UIRadioButton : UIControl
     {
@@ -226,6 +226,7 @@ namespace Sunny.UI
         }
 
         [DefaultValue(0)]
+        [Description("分组编号"), Category("SunnyUI")]
         public int GroupIndex { get; set; }
 
         /// <summary>
diff --git a/SunnyUI/Controls/UITitlePanel.cs b/SunnyUI/Controls/UITitlePanel.cs
index a7631d3f..b64e1441 100644
--- a/SunnyUI/Controls/UITitlePanel.cs
+++ b/SunnyUI/Controls/UITitlePanel.cs
@@ -29,6 +29,7 @@ using System.Windows.Forms;
 
 namespace Sunny.UI
 {
+    [DefaultEvent("Click"), DefaultProperty("Text")]
     public partial class UITitlePanel : UIPanel
     {
         private int _titleHeight = 35;