fixed #480

src/Shared/HandyControl_Shared/Controls/Input/ComboBox.cs

@@ -5,6 +5,7 @@ using System.Windows.Controls;
 using System.Windows.Controls.Primitives;
 using System.Windows.Data;
 using System.Windows.Input;
+using System.Windows.Media;
 #if NET40
 using System.Windows.Threading;
 #endif
@@ -69,6 +70,13 @@ namespace HandyControl.Controls
                 {
                     _editableTextBox.TextChanged += EditableTextBox_TextChanged;
 
+                    _editableTextBox.SetBinding(SelectionBrushProperty, new Binding(SelectionBrushProperty.Name) { Source = this });
+#if !(NET40 || NET45 || NET451 || NET452 || NET46 || NET461 || NET462 || NET47 || NET471 || NET472)
+                    _editableTextBox.SetBinding(SelectionTextBrushProperty, new Binding(SelectionTextBrushProperty.Name) { Source = this });
+#endif
+                    _editableTextBox.SetBinding(SelectionOpacityProperty, new Binding(SelectionOpacityProperty.Name) { Source = this });
+                    _editableTextBox.SetBinding(CaretBrushProperty, new Binding(CaretBrushProperty.Name) { Source = this });
+
                     if (AutoComplete)
                     {
 #if NET40
@@ -238,6 +246,122 @@ namespace HandyControl.Controls
             }
         }
 
+        /// <summary>
+        ///     是否自动完成输入
+        /// </summary>
+        public bool AutoComplete
+        {
+            get => (bool)GetValue(AutoCompleteProperty);
+            set => SetValue(AutoCompleteProperty, ValueBoxes.BooleanBox(value));
+        }
+
+        /// <summary>
+        ///     搜索文本
+        /// </summary>
+        internal static readonly DependencyProperty SearchTextProperty = DependencyProperty.Register(
+            "SearchText", typeof(string), typeof(ComboBox), new PropertyMetadata(default(string), OnSearchTextChanged));
+
+        private static void OnSearchTextChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
+        {
+            var ctl = (ComboBox)d;
+            if (ctl._isAutoCompleteAction)
+            {
+#if NET40
+                ctl._searchText = e.NewValue as string;
+                ctl._autoCompleteTimer.Stop();
+                ctl._autoCompleteTimer.Start();
+#else
+                ctl.UpdateSearchItems(e.NewValue as string);
+#endif
+            }
+
+            ctl._isAutoCompleteAction = true;
+        }
+
+        /// <summary>
+        ///     搜索文本
+        /// </summary>
+        internal string SearchText
+        {
+            get => (string)GetValue(SearchTextProperty);
+            set => SetValue(SearchTextProperty, value);
+        }
+
+        public static readonly DependencyProperty SelectionBrushProperty =
+            TextBoxBase.SelectionBrushProperty.AddOwner(typeof(ComboBox));
+
+        public Brush SelectionBrush
+        {
+            get => (Brush) GetValue(SelectionBrushProperty);
+            set => SetValue(SelectionBrushProperty, value);
+        }
+
+#if !(NET40 || NET45 || NET451 || NET452 || NET46 || NET461 || NET462 || NET47 || NET471 || NET472)
+
+        public static readonly DependencyProperty SelectionTextBrushProperty =
+            TextBoxBase.SelectionTextBrushProperty.AddOwner(typeof(ComboBox));
+
+        public Brush SelectionTextBrush
+        {
+            get => (Brush)GetValue(SelectionTextBrushProperty);
+            set => SetValue(SelectionTextBrushProperty, value);
+        }
+
+#endif
+
+        public static readonly DependencyProperty SelectionOpacityProperty =
+            TextBoxBase.SelectionOpacityProperty.AddOwner(typeof(ComboBox));
+
+        public double SelectionOpacity
+        {
+            get => (double)GetValue(SelectionOpacityProperty);
+            set => SetValue(SelectionOpacityProperty, value);
+        }
+
+        public static readonly DependencyProperty CaretBrushProperty =
+            TextBoxBase.CaretBrushProperty.AddOwner(typeof(ComboBox));
+
+        public Brush CaretBrush
+        {
+            get => (Brush)GetValue(CaretBrushProperty);
+            set => SetValue(CaretBrushProperty, value);
+        }
+
+        /// <summary>
+        ///     验证数据
+        /// </summary>
+        /// <returns></returns>
+        public virtual bool VerifyData()
+        {
+            OperationResult<bool> result;
+
+            var value = _editableTextBox == null ? Text : _editableTextBox.Text;
+
+            if (VerifyFunc != null)
+            {
+                result = VerifyFunc.Invoke(value);
+            }
+            else
+            {
+                if (!string.IsNullOrEmpty(value))
+                {
+                    result = OperationResult.Success();
+                }
+                else if (InfoElement.GetNecessary(this))
+                {
+                    result = OperationResult.Failed(Properties.Langs.Lang.IsNecessary);
+                }
+                else
+                {
+                    result = OperationResult.Success();
+                }
+            }
+
+            IsError = !result.Data;
+            ErrorStr = result.Message;
+            return result.Data;
+        }
+
         /// <summary>
         ///     更新搜索的项目
         /// </summary>
@@ -300,81 +424,5 @@ namespace HandyControl.Controls
                 SelectedValue = comboBoxItem.Content;
             }
         }
-
-        /// <summary>
-        ///     搜索文本
-        /// </summary>
-        internal static readonly DependencyProperty SearchTextProperty = DependencyProperty.Register(
-            "SearchText", typeof(string), typeof(ComboBox), new PropertyMetadata(default(string), OnSearchTextChanged));
-
-        private static void OnSearchTextChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            var ctl = (ComboBox)d;
-            if (ctl._isAutoCompleteAction)
-            {
-#if NET40
-                ctl._searchText = e.NewValue as string;
-                ctl._autoCompleteTimer.Stop();
-                ctl._autoCompleteTimer.Start();
-#else
-                ctl.UpdateSearchItems(e.NewValue as string);
-#endif
-            }
-
-            ctl._isAutoCompleteAction = true;
-        }
-
-        /// <summary>
-        ///     搜索文本
-        /// </summary>
-        internal string SearchText
-        {
-            get => (string)GetValue(SearchTextProperty);
-            set => SetValue(SearchTextProperty, value);
-        }
-
-        /// <summary>
-        ///     是否自动完成输入
-        /// </summary>
-        public bool AutoComplete
-        {
-            get => (bool)GetValue(AutoCompleteProperty);
-            set => SetValue(AutoCompleteProperty, ValueBoxes.BooleanBox(value));
-        }
-
-        /// <summary>
-        ///     验证数据
-        /// </summary>
-        /// <returns></returns>
-        public virtual bool VerifyData()
-        {
-            OperationResult<bool> result;
-
-            var value = _editableTextBox == null ? Text : _editableTextBox.Text;
-
-            if (VerifyFunc != null)
-            {
-                result = VerifyFunc.Invoke(value);
-            }
-            else
-            {
-                if (!string.IsNullOrEmpty(value))
-                {
-                    result = OperationResult.Success();
-                }
-                else if (InfoElement.GetNecessary(this))
-                {
-                    result = OperationResult.Failed(Properties.Langs.Lang.IsNecessary);
-                }
-                else
-                {
-                    result = OperationResult.Success();
-                }
-            }
-
-            IsError = !result.Data;
-            ErrorStr = result.Message;
-            return result.Data;
-        }
     }
 }

src/Shared/HandyControl_Shared/Controls/Input/DatePicker.cs

@@ -2,7 +2,9 @@
 using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Controls.Primitives;
+using System.Windows.Data;
 using System.Windows.Input;
+using System.Windows.Media;
 using HandyControl.Data;
 using HandyControl.Interactivity;
 
@@ -36,6 +38,13 @@ namespace HandyControl.Controls
             _textBox = GetTemplateChild(ElementTextBox) as System.Windows.Controls.TextBox;
             if (_textBox != null)
             {
+                _textBox.SetBinding(SelectionBrushProperty, new Binding(SelectionBrushProperty.Name) { Source = this });
+#if !(NET40 || NET45 || NET451 || NET452 || NET46 || NET461 || NET462 || NET47 || NET471 || NET472)
+                _textBox.SetBinding(SelectionTextBrushProperty, new Binding(SelectionTextBrushProperty.Name) { Source = this });
+#endif
+                _textBox.SetBinding(SelectionOpacityProperty, new Binding(SelectionOpacityProperty.Name) { Source = this });
+                _textBox.SetBinding(CaretBrushProperty, new Binding(CaretBrushProperty.Name) { Source = this });
+
                 _textBox.TextChanged += TextBox_TextChanged;
             }
         }
@@ -80,6 +89,46 @@ namespace HandyControl.Controls
             set => SetValue(ShowClearButtonProperty, ValueBoxes.BooleanBox(value));
         }
 
+        public static readonly DependencyProperty SelectionBrushProperty =
+            TextBoxBase.SelectionBrushProperty.AddOwner(typeof(DatePicker));
+
+        public Brush SelectionBrush
+        {
+            get => (Brush)GetValue(SelectionBrushProperty);
+            set => SetValue(SelectionBrushProperty, value);
+        }
+
+#if !(NET40 || NET45 || NET451 || NET452 || NET46 || NET461 || NET462 || NET47 || NET471 || NET472)
+
+        public static readonly DependencyProperty SelectionTextBrushProperty =
+            TextBoxBase.SelectionTextBrushProperty.AddOwner(typeof(DatePicker));
+
+        public Brush SelectionTextBrush
+        {
+            get => (Brush)GetValue(SelectionTextBrushProperty);
+            set => SetValue(SelectionTextBrushProperty, value);
+        }
+
+#endif
+
+        public static readonly DependencyProperty SelectionOpacityProperty =
+            TextBoxBase.SelectionOpacityProperty.AddOwner(typeof(DatePicker));
+
+        public double SelectionOpacity
+        {
+            get => (double)GetValue(SelectionOpacityProperty);
+            set => SetValue(SelectionOpacityProperty, value);
+        }
+
+        public static readonly DependencyProperty CaretBrushProperty =
+            TextBoxBase.CaretBrushProperty.AddOwner(typeof(DatePicker));
+
+        public Brush CaretBrush
+        {
+            get => (Brush)GetValue(CaretBrushProperty);
+            set => SetValue(CaretBrushProperty, value);
+        }
+
         public virtual bool VerifyData()
         {
             OperationResult<bool> result;

src/Shared/HandyControl_Shared/Controls/Input/DateTimePicker.cs

@@ -4,7 +4,9 @@ using System.ComponentModel;
 using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Controls.Primitives;
+using System.Windows.Data;
 using System.Windows.Input;
+using System.Windows.Media;
 using System.Windows.Threading;
 using HandyControl.Data;
 using HandyControl.Interactivity;
@@ -268,6 +270,46 @@ namespace HandyControl.Controls
             set => SetValue(ShowClearButtonProperty, ValueBoxes.BooleanBox(value));
         }
 
+        public static readonly DependencyProperty SelectionBrushProperty =
+            TextBoxBase.SelectionBrushProperty.AddOwner(typeof(DateTimePicker));
+
+        public Brush SelectionBrush
+        {
+            get => (Brush)GetValue(SelectionBrushProperty);
+            set => SetValue(SelectionBrushProperty, value);
+        }
+
+#if !(NET40 || NET45 || NET451 || NET452 || NET46 || NET461 || NET462 || NET47 || NET471 || NET472)
+
+        public static readonly DependencyProperty SelectionTextBrushProperty =
+            TextBoxBase.SelectionTextBrushProperty.AddOwner(typeof(DateTimePicker));
+
+        public Brush SelectionTextBrush
+        {
+            get => (Brush)GetValue(SelectionTextBrushProperty);
+            set => SetValue(SelectionTextBrushProperty, value);
+        }
+
+#endif
+
+        public static readonly DependencyProperty SelectionOpacityProperty =
+            TextBoxBase.SelectionOpacityProperty.AddOwner(typeof(DateTimePicker));
+
+        public double SelectionOpacity
+        {
+            get => (double)GetValue(SelectionOpacityProperty);
+            set => SetValue(SelectionOpacityProperty, value);
+        }
+
+        public static readonly DependencyProperty CaretBrushProperty =
+            TextBoxBase.CaretBrushProperty.AddOwner(typeof(DateTimePicker));
+
+        public Brush CaretBrush
+        {
+            get => (Brush)GetValue(CaretBrushProperty);
+            set => SetValue(CaretBrushProperty, value);
+        }
+
         #endregion
 
         #region Public Methods
@@ -316,31 +358,40 @@ namespace HandyControl.Controls
 
             _dropDownButton.Click += DropDownButton_Click;
             _dropDownButton.MouseLeave += DropDownButton_MouseLeave;
-            if (SelectedDateTime == null)
-            {
-                _textBox.Text = DateTime.Now.ToString(DateTimeFormat);
-            }
-            _textBox.KeyDown += TextBox_KeyDown;
-            _textBox.TextChanged += TextBox_TextChanged;
-            _textBox.LostFocus += TextBox_LostFocus;
 
-            if (SelectedDateTime == null)
+            if (_textBox != null)
             {
-                if (!string.IsNullOrEmpty(_defaultText))
+                if (SelectedDateTime == null)
                 {
-                    _textBox.Text = _defaultText;
-                    SetSelectedDateTime();
+                    _textBox.Text = DateTime.Now.ToString(DateTimeFormat);
+                }
+
+                _textBox.SetBinding(SelectionBrushProperty, new Binding(SelectionBrushProperty.Name) { Source = this });
+#if !(NET40 || NET45 || NET451 || NET452 || NET46 || NET461 || NET462 || NET47 || NET471 || NET472)
+                _textBox.SetBinding(SelectionTextBrushProperty, new Binding(SelectionTextBrushProperty.Name) { Source = this });
+#endif
+                _textBox.SetBinding(SelectionOpacityProperty, new Binding(SelectionOpacityProperty.Name) { Source = this });
+                _textBox.SetBinding(CaretBrushProperty, new Binding(CaretBrushProperty.Name) { Source = this });
+
+                _textBox.KeyDown += TextBox_KeyDown;
+                _textBox.TextChanged += TextBox_TextChanged;
+                _textBox.LostFocus += TextBox_LostFocus;
+
+                if (SelectedDateTime == null)
+                {
+                    if (!string.IsNullOrEmpty(_defaultText))
+                    {
+                        _textBox.Text = _defaultText;
+                        SetSelectedDateTime();
+                    }
+                }
+                else
+                {
+                    _textBox.Text = DateTimeToString(SelectedDateTime.Value);
                 }
             }
-            else
-            {
-                _textBox.Text = DateTimeToString(SelectedDateTime.Value);
-            }
 
-            if (_originalSelectedDateTime == null)
-            {
-                _originalSelectedDateTime = DateTime.Now;
-            }
+            _originalSelectedDateTime ??= DateTime.Now;
             SetCurrentValue(DisplayDateTimeProperty, _originalSelectedDateTime);
         }
 
@@ -424,11 +475,7 @@ namespace HandyControl.Controls
         {
             if (value)
             {
-                if (_isHandlerSuspended == null)
-                {
-                    _isHandlerSuspended = new Dictionary<DependencyProperty, bool>(2);
-                }
-
+                _isHandlerSuspended ??= new Dictionary<DependencyProperty, bool>(2);
                 _isHandlerSuspended[property] = true;
             }
             else

src/Shared/HandyControl_Shared/Controls/Input/NumericUpDown.cs

@@ -1,7 +1,10 @@
 using System;
 using System.Windows;
 using System.Windows.Controls;
+using System.Windows.Controls.Primitives;
+using System.Windows.Data;
 using System.Windows.Input;
+using System.Windows.Media;
 using HandyControl.Data;
 using HandyControl.Interactivity;
 using HandyControl.Tools;
@@ -85,6 +88,13 @@ namespace HandyControl.Controls
 
             if (_textBox != null)
             {
+                _textBox.SetBinding(SelectionBrushProperty, new Binding(SelectionBrushProperty.Name) { Source = this });
+#if !(NET40 || NET45 || NET451 || NET452 || NET46 || NET461 || NET462 || NET47 || NET471 || NET472)
+                _textBox.SetBinding(SelectionTextBrushProperty, new Binding(SelectionTextBrushProperty.Name) { Source = this });
+#endif
+                _textBox.SetBinding(SelectionOpacityProperty, new Binding(SelectionOpacityProperty.Name) { Source = this });
+                _textBox.SetBinding(CaretBrushProperty, new Binding(CaretBrushProperty.Name) { Source = this });
+
                 TextCompositionManager.AddPreviewTextInputHandler(_textBox, PreviewTextInputHandler);
                 _textBox.TextChanged += TextBox_TextChanged;
                 _textBox.PreviewKeyDown += TextBox_PreviewKeyDown;
@@ -389,6 +399,46 @@ namespace HandyControl.Controls
             set => SetValue(IsReadOnlyProperty, ValueBoxes.BooleanBox(value));
         }
 
+        public static readonly DependencyProperty SelectionBrushProperty =
+            TextBoxBase.SelectionBrushProperty.AddOwner(typeof(NumericUpDown));
+
+        public Brush SelectionBrush
+        {
+            get => (Brush)GetValue(SelectionBrushProperty);
+            set => SetValue(SelectionBrushProperty, value);
+        }
+
+#if !(NET40 || NET45 || NET451 || NET452 || NET46 || NET461 || NET462 || NET47 || NET471 || NET472)
+
+        public static readonly DependencyProperty SelectionTextBrushProperty =
+            TextBoxBase.SelectionTextBrushProperty.AddOwner(typeof(NumericUpDown));
+
+        public Brush SelectionTextBrush
+        {
+            get => (Brush)GetValue(SelectionTextBrushProperty);
+            set => SetValue(SelectionTextBrushProperty, value);
+        }
+
+#endif
+
+        public static readonly DependencyProperty SelectionOpacityProperty =
+            TextBoxBase.SelectionOpacityProperty.AddOwner(typeof(NumericUpDown));
+
+        public double SelectionOpacity
+        {
+            get => (double)GetValue(SelectionOpacityProperty);
+            set => SetValue(SelectionOpacityProperty, value);
+        }
+
+        public static readonly DependencyProperty CaretBrushProperty =
+            TextBoxBase.CaretBrushProperty.AddOwner(typeof(NumericUpDown));
+
+        public Brush CaretBrush
+        {
+            get => (Brush)GetValue(CaretBrushProperty);
+            set => SetValue(CaretBrushProperty, value);
+        }
+
         public Func<string, OperationResult<bool>> VerifyFunc { get; set; }
 
         public virtual bool VerifyData()

src/Shared/HandyControl_Shared/Controls/Input/PinBox.cs

@@ -5,7 +5,10 @@ using System.Runtime.InteropServices;
 using System.Security;
 using System.Windows;
 using System.Windows.Controls;
+using System.Windows.Controls.Primitives;
+using System.Windows.Data;
 using System.Windows.Input;
+using System.Windows.Media;
 using HandyControl.Data;
 using HandyControl.Tools;
 using HandyControl.Tools.Extension;
@@ -256,6 +259,46 @@ namespace HandyControl.Controls
             set => SetValue(ItemHeightProperty, value);
         }
 
+        public static readonly DependencyProperty SelectionBrushProperty =
+            TextBoxBase.SelectionBrushProperty.AddOwner(typeof(PinBox));
+
+        public Brush SelectionBrush
+        {
+            get => (Brush)GetValue(SelectionBrushProperty);
+            set => SetValue(SelectionBrushProperty, value);
+        }
+
+#if !(NET40 || NET45 || NET451 || NET452 || NET46 || NET461 || NET462 || NET47 || NET471 || NET472)
+
+        public static readonly DependencyProperty SelectionTextBrushProperty =
+            TextBoxBase.SelectionTextBrushProperty.AddOwner(typeof(PinBox));
+
+        public Brush SelectionTextBrush
+        {
+            get => (Brush)GetValue(SelectionTextBrushProperty);
+            set => SetValue(SelectionTextBrushProperty, value);
+        }
+
+#endif
+
+        public static readonly DependencyProperty SelectionOpacityProperty =
+            TextBoxBase.SelectionOpacityProperty.AddOwner(typeof(PinBox));
+
+        public double SelectionOpacity
+        {
+            get => (double)GetValue(SelectionOpacityProperty);
+            set => SetValue(SelectionOpacityProperty, value);
+        }
+
+        public static readonly DependencyProperty CaretBrushProperty =
+            TextBoxBase.CaretBrushProperty.AddOwner(typeof(PinBox));
+
+        public Brush CaretBrush
+        {
+            get => (Brush)GetValue(CaretBrushProperty);
+            set => SetValue(CaretBrushProperty, value);
+        }
+
         public static readonly RoutedEvent CompletedEvent =
             EventManager.RegisterRoutedEvent("Completed", RoutingStrategy.Bubble,
                 typeof(RoutedEventHandler), typeof(PinBox));
@@ -281,7 +324,7 @@ namespace HandyControl.Controls
 
         private System.Windows.Controls.PasswordBox CreatePasswordBox()
         {
-            return new System.Windows.Controls.PasswordBox
+            var passwordBox = new System.Windows.Controls.PasswordBox
             {
                 MaxLength = 1,
                 HorizontalContentAlignment = HorizontalAlignment.Center,
@@ -290,8 +333,18 @@ namespace HandyControl.Controls
                 Width = ItemWidth,
                 Height = ItemHeight,
                 Padding = default,
-                PasswordChar = PasswordChar
+                PasswordChar = PasswordChar,
+                Foreground = Foreground
             };
+
+            passwordBox.SetBinding(SelectionBrushProperty, new Binding(SelectionBrushProperty.Name) { Source = this });
+#if !(NET40 || NET45 || NET451 || NET452 || NET46 || NET461 || NET462 || NET47 || NET471 || NET472)
+            passwordBox.SetBinding(SelectionTextBrushProperty, new Binding(SelectionTextBrushProperty.Name) { Source = this });
+#endif
+            passwordBox.SetBinding(SelectionOpacityProperty, new Binding(SelectionOpacityProperty.Name) { Source = this });
+            passwordBox.SetBinding(CaretBrushProperty, new Binding(CaretBrushProperty.Name) { Source = this });
+
+            return passwordBox;
         }
 
         public override void OnApplyTemplate()

src/Shared/HandyControl_Shared/Controls/Input/TimePicker.cs

@@ -4,7 +4,9 @@ using System.ComponentModel;
 using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Controls.Primitives;
+using System.Windows.Data;
 using System.Windows.Input;
+using System.Windows.Media;
 using System.Windows.Threading;
 using HandyControl.Data;
 using HandyControl.Interactivity;
@@ -292,6 +294,46 @@ namespace HandyControl.Controls
             set => SetValue(ShowClearButtonProperty, ValueBoxes.BooleanBox(value));
         }
 
+        public static readonly DependencyProperty SelectionBrushProperty =
+            TextBoxBase.SelectionBrushProperty.AddOwner(typeof(TimePicker));
+
+        public Brush SelectionBrush
+        {
+            get => (Brush)GetValue(SelectionBrushProperty);
+            set => SetValue(SelectionBrushProperty, value);
+        }
+
+#if !(NET40 || NET45 || NET451 || NET452 || NET46 || NET461 || NET462 || NET47 || NET471 || NET472)
+
+        public static readonly DependencyProperty SelectionTextBrushProperty =
+            TextBoxBase.SelectionTextBrushProperty.AddOwner(typeof(TimePicker));
+
+        public Brush SelectionTextBrush
+        {
+            get => (Brush)GetValue(SelectionTextBrushProperty);
+            set => SetValue(SelectionTextBrushProperty, value);
+        }
+
+#endif
+
+        public static readonly DependencyProperty SelectionOpacityProperty =
+            TextBoxBase.SelectionOpacityProperty.AddOwner(typeof(TimePicker));
+
+        public double SelectionOpacity
+        {
+            get => (double)GetValue(SelectionOpacityProperty);
+            set => SetValue(SelectionOpacityProperty, value);
+        }
+
+        public static readonly DependencyProperty CaretBrushProperty =
+            TextBoxBase.CaretBrushProperty.AddOwner(typeof(TimePicker));
+
+        public Brush CaretBrush
+        {
+            get => (Brush)GetValue(CaretBrushProperty);
+            set => SetValue(CaretBrushProperty, value);
+        }
+
         public static readonly DependencyProperty ClockProperty = DependencyProperty.Register(
             "Clock", typeof(ClockBase), typeof(TimePicker), new FrameworkPropertyMetadata(default(Clock), FrameworkPropertyMetadataOptions.NotDataBindable, OnClockChanged));
 
@@ -398,31 +440,40 @@ namespace HandyControl.Controls
 
             _dropDownButton.Click += DropDownButton_Click;
             _dropDownButton.MouseLeave += DropDownButton_MouseLeave;
-            if (SelectedTime == null)
-            {
-                _textBox.Text = DateTime.Now.ToString(TimeFormat);
-            }
-            _textBox.KeyDown += TextBox_KeyDown;
-            _textBox.TextChanged += TextBox_TextChanged;
-            _textBox.LostFocus += TextBox_LostFocus;
 
-            if (SelectedTime == null)
+            if (_textBox != null)
             {
-                if (!string.IsNullOrEmpty(_defaultText))
+                if (SelectedTime == null)
                 {
-                    _textBox.Text = _defaultText;
-                    SetSelectedTime();
+                    _textBox.Text = DateTime.Now.ToString(TimeFormat);
+                }
+
+                _textBox.SetBinding(SelectionBrushProperty, new Binding(SelectionBrushProperty.Name) { Source = this });
+#if !(NET40 || NET45 || NET451 || NET452 || NET46 || NET461 || NET462 || NET47 || NET471 || NET472)
+                _textBox.SetBinding(SelectionTextBrushProperty, new Binding(SelectionTextBrushProperty.Name) { Source = this });
+#endif
+                _textBox.SetBinding(SelectionOpacityProperty, new Binding(SelectionOpacityProperty.Name) { Source = this });
+                _textBox.SetBinding(CaretBrushProperty, new Binding(CaretBrushProperty.Name) { Source = this });
+
+                _textBox.KeyDown += TextBox_KeyDown;
+                _textBox.TextChanged += TextBox_TextChanged;
+                _textBox.LostFocus += TextBox_LostFocus;
+
+                if (SelectedTime == null)
+                {
+                    if (!string.IsNullOrEmpty(_defaultText))
+                    {
+                        _textBox.Text = _defaultText;
+                        SetSelectedTime();
+                    }
+                }
+                else
+                {
+                    _textBox.Text = DateTimeToString((DateTime)SelectedTime);
                 }
             }
-            else
-            {
-                _textBox.Text = DateTimeToString((DateTime)SelectedTime);
-            }
 
-            if (_originalSelectedTime == null)
-            {
-                _originalSelectedTime = DateTime.Now;
-            }
+            _originalSelectedTime ??= DateTime.Now;
             SetCurrentValue(DisplayTimeProperty, _originalSelectedTime);
         }
 
@@ -460,11 +511,7 @@ namespace HandyControl.Controls
         {
             if (value)
             {
-                if (_isHandlerSuspended == null)
-                {
-                    _isHandlerSuspended = new Dictionary<DependencyProperty, bool>(2);
-                }
-
+                _isHandlerSuspended ??= new Dictionary<DependencyProperty, bool>(2);
                 _isHandlerSuspended[property] = true;
             }
             else