* UIDropDown: 解决下拉控件关闭报错

SunnyUI/Controls/UIColorPicker.cs

@@ -60,6 +60,7 @@ namespace Sunny.UI
         {
             InitializeComponent();
             Value = UIColor.Blue;
+            CreateInstance();
         }
 
         private void UIColorPicker_ButtonClick(object sender, EventArgs e)

SunnyUI/Controls/UIComboBox.cs

@@ -61,6 +61,8 @@ namespace Sunny.UI
             edit.KeyDown += Edit_KeyDown;
             DropDownWidth = 150;
             fullControlSelect = true;
+
+            CreateInstance();
         }
 
         private void ListBox_Click(object sender, EventArgs e)

SunnyUI/Controls/UIComboDataGridView.cs

@@ -79,6 +79,7 @@ namespace Sunny.UI
         {
             InitializeComponent();
             fullControlSelect = true;
+            CreateInstance();
         }
 
         public Control ExToolTipControl()

SunnyUI/Controls/UIComboTreeView.cs

@@ -39,6 +39,7 @@ namespace Sunny.UI
         {
             InitializeComponent();
             fullControlSelect = true;
+            CreateInstance();
         }
 
         private void InitializeComponent()

SunnyUI/Controls/UIDatePicker.cs

@@ -42,6 +42,8 @@ namespace Sunny.UI
             MaxLength = 10;
             EditorLostFocus += UIDatePicker_LostFocus;
             TextChanged += UIDatePicker_TextChanged;
+
+            CreateInstance();
         }
 
         [DefaultValue(false)]

SunnyUI/Controls/UIDateTimePicker.cs

@@ -72,6 +72,8 @@ namespace Sunny.UI
             EditorLostFocus += UIDatePicker_LostFocus;
             TextChanged += UIDatePicker_TextChanged;
             MaxLength = 19;
+
+            CreateInstance();
         }
 
         private void UIDatePicker_TextChanged(object sender, EventArgs e)

SunnyUI/Controls/UITimePicker.cs

@@ -60,6 +60,8 @@ namespace Sunny.UI
             EditorLostFocus += UIDatePicker_LostFocus;
             TextChanged += UIDatePicker_TextChanged;
             MaxLength = 8;
+
+            CreateInstance();
         }
 
         [DefaultValue(false)]