2012-11-26 41 views
1

我有一個普通的ComboBox。在一個ComboBox的右上角放置一個smal圖像

enter image description here

現在我想將小圖像16x16px在右上角。

enter image description here

我已經嘗試此代碼:

<ComboBox HorizontalAlignment="Left" Margin="95,49,0,0" VerticalAlignment="Top" Width="211" Height="37"> 
     <ComboBox.Style> 
      <Style TargetType="{x:Type ComboBox}"> 

       <Setter Property="Template"> 
        <Setter.Value> 
         <ControlTemplate> 
          <Border> 
           <StackPanel> 
            <ContentPresenter/> 
            <Image Source="/WpfApplication6;component\accept_16.png" Width="16" /> 
           </StackPanel> 
          </Border> 
         </ControlTemplate> 
        </Setter.Value> 
       </Setter> 

      </Style> 
     </ComboBox.Style> 
    </ComboBox> 

但它只能顯示圖像,而不是組合框...

+0

我真的很抱歉,我沒有時間,但你要的風格是什麼組合框的切換按鈕......你必須創建樣式ToggleButton並將其設置爲Combobox ControlTemplate中的ToggleButton的Template屬性。如果你想讓我做,我今天晚上會。 –

回答

0

ComboBoxImageGrid內,並將Image對齊左上角。然後,你不會過於簡化的一個被替換一個相當複雜的ControlTemplate

<Grid> 
    <ComboBox/> 
    <Image HorizontalAlignment="Left" VerticalAlignment="Top"/> 
</Grid> 

可重用性,使用戶控件出來的:

<UserControl x:Class="StackOverflow.UserControl1" 
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
      xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
      xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
      xmlns:local="clr-namespace:StackOverflow" 
      mc:Ignorable="d" 
      d:DesignHeight="300" d:DesignWidth="300"> 
    <Grid> 
     <ComboBox/> 
     <Image HorizontalAlignment="Left" VerticalAlignment="Top"/> 
    </Grid> 
</UserControl> 

然後將其插入您的XAML多次如你所願:

<local:UserControl1/> 

但是,如果你堅持重新模擬ComboBox,可以考慮修改一個完整的模板。請看下面的「默認」的ControlTemplate(和依賴性)的組合框:

<Style x:Key="ComboBoxFocusVisual"> 
     <Setter Property="Control.Template"> 
      <Setter.Value> 
       <ControlTemplate> 
        <Rectangle Margin="4,4,21,4" SnapsToDevicePixels="true" Stroke="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}" StrokeThickness="1" StrokeDashArray="1 2"/> 
       </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"/> 
    <Geometry x:Key="DownArrowGeometry">M 0 0 L 3.5 4 L 7 0 Z</Geometry> 
    <Style x:Key="ComboBoxReadonlyToggleButton" TargetType="{x:Type ToggleButton}"> 
     <Setter Property="OverridesDefaultStyle" Value="true"/> 
     <Setter Property="IsTabStop" Value="false"/> 
     <Setter Property="Focusable" Value="false"/> 
     <Setter Property="ClickMode" Value="Press"/> 
     <Setter Property="Background" Value="Transparent"/> 
     <Setter Property="Template"> 
      <Setter.Value> 
       <ControlTemplate TargetType="{x:Type ToggleButton}"> 
        <Themes:ButtonChrome x:Name="Chrome" BorderBrush="{TemplateBinding BorderBrush}" Background="{TemplateBinding Background}" RenderMouseOver="{TemplateBinding IsMouseOver}" RenderPressed="{TemplateBinding IsPressed}" SnapsToDevicePixels="true"> 
         <Grid HorizontalAlignment="Right" Width="{DynamicResource {x:Static SystemParameters.VerticalScrollBarWidthKey}}"> 
          <Path x:Name="Arrow" Data="{StaticResource DownArrowGeometry}" Fill="Black" HorizontalAlignment="Center" Margin="3,1,0,0" VerticalAlignment="Center"/> 
         </Grid> 
        </Themes:ButtonChrome> 
        <ControlTemplate.Triggers> 
         <Trigger Property="IsChecked" Value="true"> 
          <Setter Property="RenderPressed" TargetName="Chrome" Value="true"/> 
         </Trigger> 
         <Trigger Property="IsEnabled" Value="false"> 
          <Setter Property="Fill" TargetName="Arrow" Value="#AFAFAF"/> 
         </Trigger> 
        </ControlTemplate.Triggers> 
       </ControlTemplate> 
      </Setter.Value> 
     </Setter> 
    </Style> 
    <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="ComboBoxEditableTextBox" TargetType="{x:Type TextBox}"> 
     <Setter Property="OverridesDefaultStyle" Value="true"/> 
     <Setter Property="AllowDrop" Value="true"/> 
     <Setter Property="MinWidth" Value="0"/> 
     <Setter Property="MinHeight" Value="0"/> 
     <Setter Property="FocusVisualStyle" Value="{x:Null}"/> 
     <Setter Property="ScrollViewer.PanningMode" Value="VerticalFirst"/> 
     <Setter Property="Stylus.IsFlicksEnabled" Value="False"/> 
     <Setter Property="Template"> 
      <Setter.Value> 
       <ControlTemplate TargetType="{x:Type TextBox}"> 
        <ScrollViewer x:Name="PART_ContentHost" Background="Transparent" Focusable="false" HorizontalScrollBarVisibility="Hidden" VerticalScrollBarVisibility="Hidden"/> 
       </ControlTemplate> 
      </Setter.Value> 
     </Setter> 
    </Style> 
    <Style x:Key="ComboBoxToggleButton" TargetType="{x:Type ToggleButton}"> 
     <Setter Property="OverridesDefaultStyle" Value="true"/> 
     <Setter Property="IsTabStop" Value="false"/> 
     <Setter Property="Focusable" Value="false"/> 
     <Setter Property="ClickMode" Value="Press"/> 
     <Setter Property="Background" Value="Transparent"/> 
     <Setter Property="Template"> 
      <Setter.Value> 
       <ControlTemplate TargetType="{x:Type ToggleButton}"> 
        <Themes:ButtonChrome x:Name="Chrome" BorderBrush="{TemplateBinding BorderBrush}" Background="{TemplateBinding Background}" RenderMouseOver="{TemplateBinding IsMouseOver}" RenderPressed="{TemplateBinding IsPressed}" RoundCorners="false" SnapsToDevicePixels="true" Width="{DynamicResource {x:Static SystemParameters.VerticalScrollBarWidthKey}}"> 
         <Path x:Name="Arrow" Data="{StaticResource DownArrowGeometry}" Fill="Black" HorizontalAlignment="Center" Margin="0,1,0,0" VerticalAlignment="Center"/> 
        </Themes:ButtonChrome> 
        <ControlTemplate.Triggers> 
         <Trigger Property="IsChecked" Value="true"> 
          <Setter Property="RenderPressed" TargetName="Chrome" Value="true"/> 
         </Trigger> 
         <Trigger Property="IsEnabled" Value="false"> 
          <Setter Property="Fill" TargetName="Arrow" Value="#AFAFAF"/> 
         </Trigger> 
        </ControlTemplate.Triggers> 
       </ControlTemplate> 
      </Setter.Value> 
     </Setter> 
    </Style> 
    <ControlTemplate x:Key="ComboBoxEditableTemplate" TargetType="{x:Type ComboBox}"> 
     <Grid x:Name="Placement" SnapsToDevicePixels="true"> 
      <Grid.ColumnDefinitions> 
       <ColumnDefinition Width="*"/> 
       <ColumnDefinition Width="Auto"/> 
      </Grid.ColumnDefinitions> 
      <Popup x:Name="PART_Popup" AllowsTransparency="true" Grid.ColumnSpan="2" IsOpen="{Binding IsDropDownOpen, RelativeSource={RelativeSource TemplatedParent}}" PopupAnimation="{DynamicResource {x:Static SystemParameters.ComboBoxPopupAnimationKey}}" Placement="Bottom"> 
       <Themes:SystemDropShadowChrome x:Name="Shdw" Color="Transparent" MaxHeight="{TemplateBinding MaxDropDownHeight}" MinWidth="{Binding ActualWidth, ElementName=Placement}"> 
        <Border x:Name="DropDownBorder" BorderBrush="{DynamicResource {x:Static SystemColors.WindowFrameBrushKey}}" BorderThickness="1" Background="{DynamicResource {x:Static SystemColors.WindowBrushKey}}"> 
         <ScrollViewer x:Name="DropDownScrollViewer"> 
          <Grid RenderOptions.ClearTypeHint="Enabled"> 
           <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}"/> 
           </Canvas> 
           <ItemsPresenter x:Name="ItemsPresenter" KeyboardNavigation.DirectionalNavigation="Contained" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/> 
          </Grid> 
         </ScrollViewer> 
        </Border> 
       </Themes:SystemDropShadowChrome> 
      </Popup> 
      <Themes:ListBoxChrome x:Name="Border" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Grid.ColumnSpan="2" RenderMouseOver="{TemplateBinding IsMouseOver}" RenderFocused="{TemplateBinding IsKeyboardFocusWithin}"/> 
      <TextBox x:Name="PART_EditableTextBox" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" IsReadOnly="{Binding IsReadOnly, RelativeSource={RelativeSource TemplatedParent}}" Margin="{TemplateBinding Padding}" Style="{StaticResource ComboBoxEditableTextBox}" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"/> 
      <ToggleButton Grid.Column="1" IsChecked="{Binding IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" Style="{StaticResource ComboBoxToggleButton}"/> 
     </Grid> 
     <ControlTemplate.Triggers> 
      <Trigger Property="IsKeyboardFocusWithin" Value="true"> 
       <Setter Property="Foreground" Value="Black"/> 
      </Trigger> 
      <Trigger Property="IsDropDownOpen" Value="true"> 
       <Setter Property="RenderFocused" TargetName="Border" Value="true"/> 
      </Trigger> 
      <Trigger Property="HasItems" Value="false"> 
       <Setter Property="Height" TargetName="DropDownBorder" Value="95"/> 
      </Trigger> 
      <Trigger Property="IsEnabled" Value="false"> 
       <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/> 
       <Setter Property="Background" Value="#FFF4F4F4"/> 
      </Trigger> 
      <MultiTrigger> 
       <MultiTrigger.Conditions> 
        <Condition Property="IsGrouping" Value="true"/> 
        <Condition Property="VirtualizingPanel.IsVirtualizingWhenGrouping" Value="false"/> 
       </MultiTrigger.Conditions> 
       <Setter Property="ScrollViewer.CanContentScroll" Value="false"/> 
      </MultiTrigger> 
      <Trigger Property="HasDropShadow" SourceName="PART_Popup" Value="true"> 
       <Setter Property="Margin" TargetName="Shdw" Value="0,0,5,5"/> 
       <Setter Property="Color" TargetName="Shdw" Value="#71000000"/> 
      </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> 
    <Style x:Key="ComboBoxStyle1" TargetType="{x:Type ComboBox}"> 
     <Setter Property="FocusVisualStyle" Value="{StaticResource ComboBoxFocusVisual}"/> 
     <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.WindowTextBrushKey}}"/> 
     <Setter Property="Background" Value="{StaticResource ButtonNormalBackground}"/> 
     <Setter Property="BorderBrush" Value="{StaticResource ButtonNormalBorder}"/> 
     <Setter Property="BorderThickness" Value="1"/> 
     <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto"/> 
     <Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto"/> 
     <Setter Property="Padding" Value="4,3"/> 
     <Setter Property="ScrollViewer.CanContentScroll" Value="true"/> 
     <Setter Property="ScrollViewer.PanningMode" Value="Both"/> 
     <Setter Property="Stylus.IsFlicksEnabled" Value="False"/> 
     <Setter Property="Template"> 
      <Setter.Value> 
       <ControlTemplate TargetType="{x:Type ComboBox}"> 
        <Grid x:Name="MainGrid" SnapsToDevicePixels="true"> 
         <Grid.ColumnDefinitions> 
          <ColumnDefinition Width="*"/> 
          <ColumnDefinition MinWidth="{DynamicResource {x:Static SystemParameters.VerticalScrollBarWidthKey}}" Width="0"/> 
         </Grid.ColumnDefinitions> 
         <Popup x:Name="PART_Popup" AllowsTransparency="true" Grid.ColumnSpan="2" IsOpen="{Binding IsDropDownOpen, RelativeSource={RelativeSource TemplatedParent}}" Margin="1" PopupAnimation="{DynamicResource {x:Static SystemParameters.ComboBoxPopupAnimationKey}}" Placement="Bottom"> 
          <Themes:SystemDropShadowChrome x:Name="Shdw" Color="Transparent" MaxHeight="{TemplateBinding MaxDropDownHeight}" MinWidth="{Binding ActualWidth, ElementName=MainGrid}"> 
           <Border x:Name="DropDownBorder" BorderBrush="{DynamicResource {x:Static SystemColors.WindowFrameBrushKey}}" BorderThickness="1" Background="{DynamicResource {x:Static SystemColors.WindowBrushKey}}"> 
            <ScrollViewer x:Name="DropDownScrollViewer"> 
             <Grid RenderOptions.ClearTypeHint="Enabled"> 
              <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}"/> 
              </Canvas> 
              <ItemsPresenter x:Name="ItemsPresenter" KeyboardNavigation.DirectionalNavigation="Contained" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/> 
             </Grid> 
            </ScrollViewer> 
           </Border> 
          </Themes:SystemDropShadowChrome> 
         </Popup> 
         <ToggleButton BorderBrush="{TemplateBinding BorderBrush}" Background="{TemplateBinding Background}" Grid.ColumnSpan="2" IsChecked="{Binding IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" Style="{StaticResource ComboBoxReadonlyToggleButton}"/> 
         <ContentPresenter ContentTemplate="{TemplateBinding SelectionBoxItemTemplate}" ContentTemplateSelector="{TemplateBinding ItemTemplateSelector}" Content="{TemplateBinding SelectionBoxItem}" ContentStringFormat="{TemplateBinding SelectionBoxItemStringFormat}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" IsHitTestVisible="false" Margin="{TemplateBinding Padding}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/> 
        </Grid> 
        <ControlTemplate.Triggers> 
         <Trigger Property="HasDropShadow" SourceName="PART_Popup" Value="true"> 
          <Setter Property="Margin" TargetName="Shdw" Value="0,0,5,5"/> 
          <Setter Property="Color" TargetName="Shdw" Value="#71000000"/> 
         </Trigger> 
         <Trigger Property="HasItems" Value="false"> 
          <Setter Property="Height" TargetName="DropDownBorder" Value="95"/> 
         </Trigger> 
         <Trigger Property="IsEnabled" Value="false"> 
          <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/> 
          <Setter Property="Background" Value="#FFF4F4F4"/> 
         </Trigger> 
         <MultiTrigger> 
          <MultiTrigger.Conditions> 
           <Condition Property="IsGrouping" Value="true"/> 
           <Condition Property="VirtualizingPanel.IsVirtualizingWhenGrouping" Value="false"/> 
          </MultiTrigger.Conditions> 
          <Setter Property="ScrollViewer.CanContentScroll" Value="false"/> 
         </MultiTrigger> 
         <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.Triggers> 
      <Trigger Property="IsEditable" Value="true"> 
       <Setter Property="BorderBrush" Value="{StaticResource TextBoxBorder}"/> 
       <Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.WindowBrushKey}}"/> 
       <Setter Property="IsTabStop" Value="false"/> 
       <Setter Property="Padding" Value="3"/> 
       <Setter Property="Template" Value="{StaticResource ComboBoxEditableTemplate}"/> 
      </Trigger> 
     </Style.Triggers> 
    </Style> 
+0

我應該詳細說明該模板:通過僅使用ContentPresenter重寫ControlTemplate,就不會顯示ItemsPresenter(或其他與ComboBox控件關聯的默認視覺效果)。 我希望這有助於。 – XamlZealot

+0

這種方式我也考慮過了,但是我想製作所有的組合框,然後它太麻煩了。 – David

+0

使UserControl不在其中,然後它是可重用的。我將在上面編輯我的答案來解釋。 – XamlZealot