ユーザーが コンボボックス内のボタンでスクロールできるようにしたいです。
style
のとをカスタマイズしましItemContainerStyle
たComboBox
ScrollViewer
コード ビハインドから にアクセスしComboBox
、ボタンのイベント ハンドラを追加する方法がわかりません。私は正しい道を進んでいると思いますが、この時点で立ち往生しています。
これは私が達成したいことです:
私
ComboBox
の私のMainWindow
:<ComboBox x:Name="cb" Style="{StaticResource ComboBoxStyle}" ItemContainerStyle="{staticResource ComboBoxItemStyle1}" IsDropDownOpen="True"> <ComboBoxItem Content="ComboBoxItem"/> <ComboBoxItem Content="ComboBoxItem"/> <ComboBoxItem Content="ComboBoxItem"/> <ComboBoxItem Content="ComboBoxItem"/> <ComboBoxItem Content="ComboBoxItem"/> </ComboBox>
私のItemcontainerStyle
:
<Style x:Key="ComboBoxItemStyle1" TargetType="{x:Type ComboBoxItem}">
<Setter Property="Padding" Value="0"/>
<Setter Property="Background" Value="Transparent"/>
<Setter Property="Foreground" Value="#FFE8E8E8"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ComboBoxItem}">
<Border x:Name="Bd" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="true" Padding="0,10" Margin="0">
<ContentPresenter SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" HorizontalAlignment="Center" VerticalAlignment="Stretch" Margin="0" />
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsHighlighted" Value="true">
<Setter Property="Background" TargetName="Bd" Value="#FF214174"/>
<Setter Property="Foreground" Value="#FFE8E8E8"/>
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
スタイルComboBox
:
<Style x:Key="ComboBoxStyle" TargetType="{x:Type ComboBox}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ComboBox}">
<Grid>
<Popup Margin="0" x:Name="PART_Popup" AllowsTransparency="true"
IsOpen="{Binding Path=IsDropDownOpen, RelativeSource={RelativeSource TemplatedParent}}"
PopupAnimation="{DynamicResource {x:Static SystemParameters.ComboBoxPopupAnimationKey}}"
Grid.ColumnSpan="2" HorizontalOffset="0" OverridesDefaultStyle="False">
<Border Name="DropDownBorder" Width="150" BorderThickness="1" CornerRadius="0" BorderBrush="Red" Margin="0,5,0,0" Padding="0" VerticalAlignment="Stretch" MaxHeight="250">
<Border.Background>
<LinearGradientBrush EndPoint="0,4" StartPoint="0,0">
<GradientStop Color="#FF001940" Offset="0"/>
<GradientStop Color="White" Offset="1"/>
</LinearGradientBrush>
</Border.Background>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
<RowDefinition Height="40"/>
</Grid.RowDefinitions>
<ScrollViewer Grid.Row="0" CanContentScroll="true" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" HorizontalAlignment="Stretch" Margin="0,0,0,40" Padding="0" Foreground="#00000000">
<ItemsPresenter Margin="0" />
</ScrollViewer>
<UniformGrid Grid.Row="1" Rows="1" Columns="2" Height="40" VerticalAlignment="Stretch">
<RepeatButton Width="50" Background="#00000000" Content="Up" Focusable="False" IsTabStop="False"></RepeatButton>
<RepeatButton Width="50" Background="#00000000" Content="Down" Focusable="False" IsTabStop="False"></RepeatButton>
</UniformGrid>
</Grid>
</Border>
</Popup>
<ToggleButton Style="{StaticResource cmbToggle}" Grid.ColumnSpan="2"
IsChecked="{Binding Path=IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" Margin="0"/>
<ContentPresenter HorizontalAlignment="Center"
Margin="0,0,21,0"
VerticalAlignment="Center"
IsHitTestVisible="false"
Content="{TemplateBinding SelectionBoxItem}"/>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>