diff --git a/SunnyUI/Common/UControl.cs b/SunnyUI/Common/UControl.cs
index 32dc681c..0b31fe5a 100644
--- a/SunnyUI/Common/UControl.cs
+++ b/SunnyUI/Common/UControl.cs
@@ -386,6 +386,18 @@ namespace Sunny.UI
             return list;
         }
 
+        internal static void HideComboDropDown(this Control ctrl)
+        {
+            var ctrls = ctrl.RootForm().GetInterfaceControls("IHideDropDown", true);
+            foreach (var control in ctrls)
+            {
+                if (control is IHideDropDown item)
+                {
+                    item.HideDropDown();
+                }
+            }
+        }
+
         /// <summary>
         /// 查找包含接口名称的控件列表
         /// </summary>
diff --git a/SunnyUI/Controls/UIComboBox.cs b/SunnyUI/Controls/UIComboBox.cs
index bd749a38..f6639fb7 100644
--- a/SunnyUI/Controls/UIComboBox.cs
+++ b/SunnyUI/Controls/UIComboBox.cs
@@ -53,7 +53,7 @@ namespace Sunny.UI
     [DefaultEvent("SelectedIndexChanged")]
     [ToolboxItem(true)]
     [LookupBindingProperties("DataSource", "DisplayMember", "ValueMember", "SelectedValue")]
-    public sealed partial class UIComboBox : UIDropControl, IToolTip
+    public sealed partial class UIComboBox : UIDropControl, IToolTip, IHideDropDown
     {
         /// <summary>
         /// 构造函数
diff --git a/SunnyUI/Controls/UIGlobal.cs b/SunnyUI/Controls/UIGlobal.cs
index f15138da..871860cc 100644
--- a/SunnyUI/Controls/UIGlobal.cs
+++ b/SunnyUI/Controls/UIGlobal.cs
@@ -40,6 +40,11 @@ namespace Sunny.UI
         public const int EditorMaxHeight = 60;
     }
 
+    public interface IHideDropDown
+    {
+        public void HideDropDown();
+    }
+
     public class UIDateTimeArgs : EventArgs
     {
         public DateTime DateTime { get; set; }
diff --git a/SunnyUI/Controls/UINumPadTextBox.cs b/SunnyUI/Controls/UINumPadTextBox.cs
index 434176be..e9d968a7 100644
--- a/SunnyUI/Controls/UINumPadTextBox.cs
+++ b/SunnyUI/Controls/UINumPadTextBox.cs
@@ -29,7 +29,7 @@ namespace Sunny.UI
 {
     [ToolboxItem(true)]
     [DefaultEvent("ValueChanged")]
-    public class UINumPadTextBox : UIDropControl, IToolTip
+    public class UINumPadTextBox : UIDropControl, IToolTip, IHideDropDown
     {
         public UINumPadTextBox()
         {
diff --git a/SunnyUI/Controls/UIUserControl.cs b/SunnyUI/Controls/UIUserControl.cs
index 362cb46c..987b1262 100644
--- a/SunnyUI/Controls/UIUserControl.cs
+++ b/SunnyUI/Controls/UIUserControl.cs
@@ -50,6 +50,12 @@ namespace Sunny.UI
             SetStyleFlags(true, false);
         }
 
+        protected override void OnClick(EventArgs e)
+        {
+            base.OnClick(e);
+            this.HideComboDropDown();
+        }
+
         [Browsable(false)]
         public bool Disabled => !Enabled;
 
diff --git a/SunnyUI/Forms/UIForm.cs b/SunnyUI/Forms/UIForm.cs
index 66bc770a..a92b5db5 100644
--- a/SunnyUI/Forms/UIForm.cs
+++ b/SunnyUI/Forms/UIForm.cs
@@ -213,7 +213,7 @@ namespace Sunny.UI
 
         public void Translate()
         {
-            List<Control> controls = this.GetTranslateControls("ITranslate");
+            List<Control> controls = this.GetInterfaceControls("ITranslate");
             foreach (var control in controls)
             {
                 if (control is ITranslate item)
@@ -685,6 +685,12 @@ namespace Sunny.UI
             }
         }
 
+        protected override void OnClick(EventArgs e)
+        {
+            base.OnClick(e);
+            this.HideComboDropDown();
+        }
+
         protected override void OnMouseClick(MouseEventArgs e)
         {
             if (FormBorderStyle == FormBorderStyle.None && ShowTitle)
diff --git a/SunnyUI/Frames/UIPage.cs b/SunnyUI/Frames/UIPage.cs
index 751c59f1..38c236fc 100644
--- a/SunnyUI/Frames/UIPage.cs
+++ b/SunnyUI/Frames/UIPage.cs
@@ -110,6 +110,12 @@ namespace Sunny.UI
             base.SizeGripStyle = SizeGripStyle.Hide;
         }
 
+        protected override void OnClick(EventArgs e)
+        {
+            base.OnClick(e);
+            this.HideComboDropDown();
+        }
+
         public event PageDeselectingEventHandler PageDeselecting;
 
         internal bool OnPageDeselecting()
diff --git a/SunnyUI/Style/UIStyle.cs b/SunnyUI/Style/UIStyle.cs
index af4b4c45..453b9ff6 100644
--- a/SunnyUI/Style/UIStyle.cs
+++ b/SunnyUI/Style/UIStyle.cs
@@ -537,7 +537,7 @@ namespace Sunny.UI
             return values;
         }
 
-        public static List<Control> GetTranslateControls(this Control ctrl, string interfaceName)
+        public static List<Control> GetInterfaceControls(this Control ctrl, string interfaceName)
         {
             List<Control> values = new List<Control>();
 
@@ -550,7 +550,7 @@ namespace Sunny.UI
 
                 if (obj.Controls.Count > 0)
                 {
-                    values.AddRange(obj.GetTranslateControls(interfaceName));
+                    values.AddRange(obj.GetInterfaceControls(interfaceName));
                 }
             }