gistfile1.xml

<Grid
	xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
	xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
	xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:Themes="clr-namespace:Microsoft.Windows.Themes;assembly=PresentationFramework.Aero" mc:Ignorable="d"
	d:DesignWidth="1743" d:DesignHeight="1024"
	TextElement.FontFamily="Fonts/#Arimo"
	TextElement.FontWeight="Bold"
	TextElement.FontSize="16">
    <Grid.Resources>
        <!--<Style x:Key="ComboBoxFocusVisual">
            <Setter Property="Control.Template">
                <Setter.Value>
                    <ControlTemplate>
                        <Rectangle Margin="0,0,0,0" SnapsToDevicePixels="true" Stroke="#FF555555" StrokeThickness="1" StrokeDashArray="1 2" HorizontalAlignment="Stretch"/>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>-->
        <LinearGradientBrush x:Key="ButtonNormalBackground" EndPoint="0,1" StartPoint="0,0">
            <GradientStop Color="#F3F3F3" Offset="0"/>
            <GradientStop Color="#EBEBEB" Offset="0.5"/>
            <GradientStop Color="#DDDDDD" Offset="0.5"/>
            <GradientStop Color="#CDCDCD" Offset="1"/>
        </LinearGradientBrush>
        <SolidColorBrush x:Key="ButtonNormalBorder" Color="#FF707070"/>

        <LinearGradientBrush x:Key="TextBoxBorder" EndPoint="0,20" MappingMode="Absolute" StartPoint="0,0">
            <GradientStop Color="#ABADB3" Offset="0.05"/>
            <GradientStop Color="#E2E3EA" Offset="0.07"/>
            <GradientStop Color="#E3E9EF" Offset="1"/>
        </LinearGradientBrush>

        <Style x:Key="ComboBoxTestStyle" TargetType="{x:Type ComboBox}">
            <!--<Setter Property="FocusVisualStyle" Value="{StaticResource ComboBoxFocusVisual}"/>-->
            <Setter Property="OverridesDefaultStyle" Value="true"/>
            <Setter Property="Background" Value="{StaticResource ButtonNormalBackground}"/>
            <Setter Property="BorderBrush" Value="{StaticResource ButtonNormalBorder}"/>
            <Setter Property="BorderThickness" Value="0"/>
            <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Disabled"/>
            <Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Disabled"/>
            <Setter Property="Padding" Value="0,0"/>
            <Setter Property="ScrollViewer.CanContentScroll" Value="true"/>
            <Setter Property="ScrollViewer.PanningMode" Value="Both"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type ComboBox}">
                        <Grid x:Name="MainGrid" SnapsToDevicePixels="true">
                            <Popup x:Name="PART_Popup" 
                                   AllowsTransparency="true" 
                                   IsOpen="{TemplateBinding IsDropDownOpen}" 
                                   Margin="0" 
                                   PopupAnimation="Slide" >
                                <Grid x:Name="DropDown" 
                                      MaxHeight="{TemplateBinding MaxDropDownHeight}" 
                                      MinWidth="{TemplateBinding ActualWidth}">
                                    <!--<Border x:Name="DropDownBorder" BorderThickness="0">-->
                                        <ScrollViewer x:Name="DropDownScrollViewer"
                                                      VerticalScrollBarVisibility="Disabled">
                                            <!--<Grid>-->
                                                <!--<Canvas HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
                                                    <Rectangle x:Name="OpaqueRect" Fill="{Binding Background, ElementName=DropDownBorder}" Height="{Binding ActualHeight, ElementName=DropDownBorder}" Width="{Binding ActualWidth, ElementName=DropDownBorder}" FlowDirection="LeftToRight" StrokeThickness="0"/>
                                                </Canvas>-->
                                                <ItemsPresenter x:Name="ItemsPresenter" 
                                                                SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" 
                                                                HorizontalAlignment="Stretch" 
                                                                VerticalAlignment="Stretch" Margin="0"/>
                                                <!--<StackPanel IsItemsHost="True" KeyboardNavigation.DirectionalNavigation="Contained" />-->
                                        <!--</Grid>-->
                                        </ScrollViewer>
                                    <!--</Border>-->
                                </Grid>
                            </Popup>
                            <ToggleButton 
                                IsChecked="{Binding IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" 
                                HorizontalContentAlignment="Center" 
                                VerticalContentAlignment="Center"/>
                            <ContentPresenter 
                                ContentTemplate="{TemplateBinding SelectionBoxItemTemplate}" 
                                ContentTemplateSelector="{TemplateBinding ItemTemplateSelector}" 
                                Content="{TemplateBinding SelectionBoxItem}" 
                                HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" 
                                IsHitTestVisible="false" 
                                Margin="{TemplateBinding Padding}" 
                                SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" 
                                VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                        </Grid>
                        <ControlTemplate.Triggers>
                            <Trigger Property="IsEnabled" Value="false">
                                <Setter Property="Foreground" Value="#FFBBBBBB"/>
                                <Setter Property="Background" Value="#FFF4F4F4"/>
                            </Trigger>
                            <!--<Trigger Property="ScrollViewer.CanContentScroll" SourceName="DropDownScrollViewer" Value="false">
                                <Setter Property="Canvas.Top" TargetName="OpaqueRect" Value="{Binding VerticalOffset, ElementName=DropDownScrollViewer}"/>
                                <Setter Property="Canvas.Left" TargetName="OpaqueRect" Value="{Binding HorizontalOffset, ElementName=DropDownScrollViewer}"/>
                            </Trigger>-->
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
        
        <Style TargetType="{x:Type ComboBoxItem}">
            <Setter Property="SnapsToDevicePixels" Value="true" />
            <Setter Property="HorizontalAlignment" Value="Stretch" />
            <Setter Property="VerticalAlignment" Value="Stretch" />
            <Setter Property="OverridesDefaultStyle" Value="true"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="ComboBoxItem">
                        <Border Name="Grid" Background="Transparent" Margin="0,5,0,0" >
                            <ContentPresenter />
                        </Border>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
        
    </Grid.Resources>
    <Grid.Background>
        <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
            <GradientStop Color="#FFF0F0F0" Offset="0"/>
            <GradientStop Color="#FFAAAAAA" Offset="1"/>
        </LinearGradientBrush>
    </Grid.Background>
    <ComboBox HorizontalAlignment="Center" 
              Margin="0,0,50,0" 
              VerticalAlignment="Center" 
              Width="40" Height="40" 
              SelectedIndex="1" 
              Background="#FFD4D4D4"
              MaxDropDownHeight="800" 
              ScrollViewer.VerticalScrollBarVisibility="Disabled" 
              Style="{DynamicResource ComboBoxTestStyle}">
        <Border Width="40" Height="40" Background="#FF9C9C9C"/>
        <Border Width="40" Height="40" Background="#FF636363"/>
        <Border Width="40" Height="40" Background="#FFD8D8D8"/>
        <Border Width="40" Height="40" Background="#FF4D4D4D"/>
        <Border Width="40" Height="40" Background="#FF5F3939"/>
    </ComboBox>
</Grid>