diff --git a/demo/Semi.Avalonia.Demo/Pages/ComboBoxDemo.axaml b/demo/Semi.Avalonia.Demo/Pages/ComboBoxDemo.axaml
index 6153782..750e0bd 100644
--- a/demo/Semi.Avalonia.Demo/Pages/ComboBoxDemo.axaml
+++ b/demo/Semi.Avalonia.Demo/Pages/ComboBoxDemo.axaml
@@ -12,42 +12,46 @@
     <Design.DataContext>
         <vm:ComboBoxDemoViewModel />
     </Design.DataContext>
-    <StackPanel Spacing="20">
-        <StackPanel.Styles>
-            <Style Selector="ComboBox">
-                <Setter Property="Width" Value="300" />
-                <Setter Property="ItemsSource" Value="{Binding Items}" />
-            </Style>
-        </StackPanel.Styles>
+    <ScrollViewer>
+        <StackPanel Spacing="20">
+            <StackPanel.Styles>
+                <Style Selector="ComboBox">
+                    <Setter Property="Width" Value="300" />
+                    <Setter Property="ItemsSource" Value="{Binding Items}" />
+                </Style>
+            </StackPanel.Styles>
 
-        <ComboBox />
-        <ComboBox Classes="ClearButton" />
-        <ComboBox PlaceholderText="Please Select" />
-        <ComboBox IsEnabled="False" />
-        <ComboBox Classes="Large" IsEnabled="False" />
-        <ComboBox Classes="Small" />
-        <ComboBox Classes="Bordered" />
-        <ComboBox Classes="Bordered" IsEnabled="False" />
-        <ComboBox>
-            <ComboBox.SelectionBoxItemTemplate>
-                <DataTemplate DataType="x:String">
-                    <ContentControl BorderThickness="1"
-                                    BorderBrush="Gold"
-                                    Content="{Binding}" />
-                </DataTemplate>
-            </ComboBox.SelectionBoxItemTemplate>
-        </ComboBox>
+            <ComboBox />
+            <ComboBox Classes="ClearButton" />
+            <ComboBox PlaceholderText="Please Select" />
+            <ComboBox IsEnabled="False" />
+            <ComboBox Classes="Large" IsEnabled="False" />
+            <ComboBox Classes="Small" />
+            <ComboBox Classes="Bordered" />
+            <ComboBox Classes="Bordered" IsEnabled="False" />
+            <ComboBox>
+                <ComboBox.SelectionBoxItemTemplate>
+                    <DataTemplate DataType="x:String">
+                        <ContentControl BorderThickness="1"
+                                        BorderBrush="Gold"
+                                        Content="{Binding}" />
+                    </DataTemplate>
+                </ComboBox.SelectionBoxItemTemplate>
+            </ComboBox>
 
-        <StackPanel Orientation="Horizontal">
-            <ComboBox Width="100" Classes="Large" PlaceholderText="Large" />
-            <ComboBox Width="100" PlaceholderText="Default" />
-            <ComboBox Width="100" Classes="Small" PlaceholderText="Small" />
+            <StackPanel Orientation="Horizontal">
+                <ComboBox Width="100" Classes="Large" PlaceholderText="Large" />
+                <ComboBox Width="100" PlaceholderText="Default" />
+                <ComboBox Width="100" Classes="Small" PlaceholderText="Small" />
+            </StackPanel>
+
+            <StackPanel Orientation="Horizontal">
+                <ComboBox Width="100" IsEnabled="False" PlaceholderText="Disabled" />
+                <ComboBox Width="100" Classes="Bordered" PlaceholderText="Bordered" />
+                <ComboBox Width="100" Classes="Bordered" IsEnabled="False" />
+            </StackPanel>
+            <ToggleSwitch Name="toggle" IsChecked="True" Content="IsEditable" />
+            <ComboBox IsEditable="{Binding #toggle.IsChecked}" />
         </StackPanel>
-
-        <StackPanel Orientation="Horizontal">
-            <ComboBox Width="100" IsEnabled="False" PlaceholderText="Disabled" />
-            <ComboBox Width="100" Classes="Bordered" PlaceholderText="Bordered" />
-            <ComboBox Width="100" Classes="Bordered" IsEnabled="False" />
-        </StackPanel>
-    </StackPanel>
+    </ScrollViewer>
 </UserControl>
\ No newline at end of file
diff --git a/src/Semi.Avalonia/Controls/ComboBox.axaml b/src/Semi.Avalonia/Controls/ComboBox.axaml
index 73958ca..fe2d055 100644
--- a/src/Semi.Avalonia/Controls/ComboBox.axaml
+++ b/src/Semi.Avalonia/Controls/ComboBox.axaml
@@ -66,8 +66,14 @@
                             VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
                             TextTrimming="CharacterEllipsis"
                             Foreground="{TemplateBinding PlaceholderForeground}"
-                            IsVisible="{TemplateBinding SelectionBoxItem,Converter={x:Static ObjectConverters.IsNull}}"
-                            Text="{TemplateBinding PlaceholderText}" />
+                            Text="{TemplateBinding PlaceholderText}">
+                            <TextBlock.IsVisible>
+                                <MultiBinding Converter="{x:Static BoolConverters.And}">
+                                    <TemplateBinding Property="SelectionBoxItem" Converter="{x:Static ObjectConverters.IsNull}" />
+                                    <TemplateBinding Property="IsEditable" Converter="{x:Static BoolConverters.Not}" />
+                                </MultiBinding>
+                            </TextBlock.IsVisible>
+                        </TextBlock>
                         <ContentPresenter
                             Name="ContentPresenter"
                             Grid.Column="0"
@@ -75,7 +81,20 @@
                             HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
                             VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"
                             Content="{TemplateBinding SelectionBoxItem}"
-                            ContentTemplate="{TemplateBinding SelectionBoxItemTemplate}" />
+                            ContentTemplate="{TemplateBinding SelectionBoxItemTemplate}"
+                            IsVisible="{TemplateBinding IsEditable, Converter={x:Static BoolConverters.Not}}" />
+                        <TextBox
+                            Name="PART_EditableTextBox"
+                            Grid.Column="0"
+                            Theme="{StaticResource LooklessTextBox}"
+                            Padding="{TemplateBinding Padding}"
+                            HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
+                            VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"
+                            Foreground="{TemplateBinding Foreground}"
+                            Text="{TemplateBinding Text, Mode=TwoWay}"
+                            Watermark="{TemplateBinding PlaceholderText}"
+                            IsVisible="{TemplateBinding IsEditable}" />
+
                         <Button
                             Name="ClearButton"
                             Grid.Column="1"
@@ -211,6 +230,11 @@
             </Style>
         </Style>
 
+        <Style Selector="^[IsEditable=true]">
+            <Setter Property="IsTabStop" Value="False" />
+            <Setter Property="KeyboardNavigation.TabNavigation" Value="Local" />
+        </Style>
+
         <Style Selector="^.Bordered">
             <Style Selector="^ /template/ Border#Background">
                 <Setter Property="Background" Value="{DynamicResource ComboBoxSelectorBorderedBackground}" />
diff --git a/src/Semi.Avalonia/Controls/TextBox.axaml b/src/Semi.Avalonia/Controls/TextBox.axaml
index 39b0f36..51f7d0a 100644
--- a/src/Semi.Avalonia/Controls/TextBox.axaml
+++ b/src/Semi.Avalonia/Controls/TextBox.axaml
@@ -491,6 +491,7 @@
         <Setter Property="VerticalContentAlignment" Value="Center" />
         <Setter Property="FocusAdorner" Value="{x:Null}" />
         <Setter Property="ScrollViewer.IsScrollChainingEnabled" Value="True" />
+        <Setter Property="ContextFlyout" Value="{StaticResource DefaultTextBoxContextFlyout}" />
         <Setter Property="Template">
             <ControlTemplate TargetType="TextBox">
                 <Border Name="PART_ContentPresenterBorder" MinHeight="{TemplateBinding MinHeight}">