combobox.xaml

工作流相关资料及源码,包含NETBPM,非常具有参考价值.

<ResourceDictionary 
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" >

  <ResourceDictionary.MergedDictionaries>
    <ResourceDictionary Source="Shared.xaml" />
  </ResourceDictionary.MergedDictionaries>

  <!-- SimpleStyles: ComboBox -->
  <!--<Snippet5>-->
  <ControlTemplate x:Key="ComboBoxToggleButton" TargetType="ToggleButton">
    <Grid>
      <Grid.ColumnDefinitions>
        <ColumnDefinition />
        <ColumnDefinition Width="20" />
      </Grid.ColumnDefinitions>
      <Border
        x:Name="Border" 
        Grid.ColumnSpan="2"
        CornerRadius="2"
        Background="{StaticResource NormalBrush}"
        BorderBrush="{StaticResource NormalBorderBrush}"
        BorderThickness="1" />
      <Border 
        Grid.Column="0"
        CornerRadius="2,0,0,2" 
        Margin="1" 
        Background="{StaticResource WindowBackgroundBrush}" 
        BorderBrush="{StaticResource NormalBorderBrush}"
        BorderThickness="0,0,1,0" />
      <Path 
        x:Name="Arrow"
        Grid.Column="1"     
        Fill="{StaticResource GlyphBrush}"
        HorizontalAlignment="Center"
        VerticalAlignment="Center"
        Data="M 0 0 L 4 4 L 8 0 Z"/>
    </Grid>
    <ControlTemplate.Triggers>
      <Trigger Property="ToggleButton.IsMouseOver" Value="true">
        <Setter TargetName="Border" Property="Background" Value="{StaticResource DarkBrush}" />
      </Trigger>
      <Trigger Property="ToggleButton.IsChecked" Value="true">
        <Setter TargetName="Border" Property="Background" Value="{StaticResource PressedBrush}" />
      </Trigger>
      <Trigger Property="IsEnabled" Value="False">
        <Setter TargetName="Border" Property="Background" Value="{StaticResource DisabledBackgroundBrush}" />
        <Setter TargetName="Border" Property="BorderBrush" Value="{StaticResource DisabledBorderBrush}" />
        <Setter Property="Foreground" Value="{StaticResource DisabledForegroundBrush}"/>
        <Setter TargetName="Arrow" Property="Fill" Value="{StaticResource DisabledForegroundBrush}" />
      </Trigger>
    </ControlTemplate.Triggers>
  </ControlTemplate>

  <ControlTemplate x:Key="ComboBoxTextBox" TargetType="TextBox">
    <Border x:Name="PART_ContentHost" Focusable="False" Background="{TemplateBinding Background}" />
  </ControlTemplate>
  
  <!--<SnippetComboBoxStyle>-->
  <Style x:Key="{x:Type ComboBox}" TargetType="ComboBox">
    <Setter Property="SnapsToDevicePixels" Value="true"/>
    <Setter Property="OverridesDefaultStyle" Value="true"/>
    <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto"/>
    <Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto"/>
    <Setter Property="ScrollViewer.CanContentScroll" Value="true"/>
    <Setter Property="MinWidth" Value="120"/>
    <Setter Property="MinHeight" Value="20"/>
    <Setter Property="Template">
      <Setter.Value>
        <ControlTemplate TargetType="ComboBox">
          <Grid>
            <ToggleButton 
              Name="ToggleButton" 
              Template="{StaticResource ComboBoxToggleButton}" 
              Grid.Column="2" 
              Focusable="false"
              IsChecked="{Binding Path=IsDropDownOpen,Mode=TwoWay,RelativeSource={RelativeSource TemplatedParent}}"
              ClickMode="Press">
            </ToggleButton>
            <!--<SnippetComboBoxSelectionBox>-->
            <ContentPresenter
              Name="ContentSite"
              IsHitTestVisible="False" 
              Content="{TemplateBinding SelectionBoxItem}"
              ContentTemplate="{TemplateBinding SelectionBoxItemTemplate}"
              ContentTemplateSelector="{TemplateBinding ItemTemplateSelector}"
              Margin="3,3,23,3"
              VerticalAlignment="Center"
              HorizontalAlignment="Left" />
            <!--</SnippetComboBoxSelectionBox>-->
            <TextBox x:Name="PART_EditableTextBox"
              Style="{x:Null}" 
              Template="{StaticResource ComboBoxTextBox}" 
              HorizontalAlignment="Left" 
              VerticalAlignment="Center" 
              Margin="3,3,23,3"
              Focusable="True" 
              Background="Transparent"
              Visibility="Hidden"
              IsReadOnly="{TemplateBinding IsReadOnly}"/>
            <Popup 
              Name="Popup"
              Placement="Bottom"
              IsOpen="{TemplateBinding IsDropDownOpen}"
              AllowsTransparency="True" 
              Focusable="False"
              PopupAnimation="Slide">
              <Grid 
                Name="DropDown"
                SnapsToDevicePixels="True"                
                MinWidth="{TemplateBinding ActualWidth}"
                MaxHeight="{TemplateBinding MaxDropDownHeight}">
                <Border 
                  x:Name="DropDownBorder"
                  Background="{StaticResource WindowBackgroundBrush}"
                  BorderThickness="1"
                  BorderBrush="{StaticResource SolidBorderBrush}"/>
                <ScrollViewer Margin="4,6,4,6" SnapsToDevicePixels="True">
                  <StackPanel IsItemsHost="True" KeyboardNavigation.DirectionalNavigation="Contained" />
                </ScrollViewer>
              </Grid>
            </Popup>
          </Grid>
          <ControlTemplate.Triggers>
            <Trigger Property="HasItems" Value="false">
              <Setter TargetName="DropDownBorder" Property="MinHeight" Value="95"/>
            </Trigger>
            <Trigger Property="IsEnabled" Value="false">
              <Setter Property="Foreground" Value="{StaticResource DisabledForegroundBrush}"/>
            </Trigger>
            <Trigger Property="IsGrouping" Value="true">
              <Setter Property="ScrollViewer.CanContentScroll" Value="false"/>
            </Trigger>
            <Trigger SourceName="Popup" Property="Popup.AllowsTransparency" Value="true">
              <Setter TargetName="DropDownBorder" Property="CornerRadius" Value="4"/>
              <Setter TargetName="DropDownBorder" Property="Margin" Value="0,2,0,0"/>
            </Trigger>
            <Trigger Property="IsEditable"
                 Value="true">
              <Setter Property="IsTabStop" Value="false"/>
              <Setter TargetName="PART_EditableTextBox" Property="Visibility"	Value="Visible"/>
              <Setter TargetName="ContentSite" Property="Visibility" Value="Hidden"/>
            </Trigger>
          </ControlTemplate.Triggers>
        </ControlTemplate>
      </Setter.Value>
    </Setter>
    <Style.Triggers>
    </Style.Triggers>
  </Style>
  <!--</SnippetComboBoxStyle>-->
  <!--</Snippet5>-->

  <!-- SimpleStyles: ComboBoxItem -->
  <!--<Snippet6>-->
  <Style x:Key="{x:Type ComboBoxItem}" TargetType="ComboBoxItem">
    <Setter Property="SnapsToDevicePixels" Value="true"/>
    <Setter Property="OverridesDefaultStyle" Value="true"/>
    <Setter Property="Template">
      <Setter.Value>
        <ControlTemplate TargetType="ComboBoxItem">
          <Border 
            Name="Border"
            Padding="2"
            SnapsToDevicePixels="true">
            <ContentPresenter />
          </Border>
          <ControlTemplate.Triggers>
            <Trigger Property="IsHighlighted" Value="true">
              <Setter TargetName="Border" Property="Background" Value="{StaticResource SelectedBackgroundBrush}"/>
            </Trigger>
            <Trigger Property="IsEnabled" Value="false">
              <Setter Property="Foreground" Value="{StaticResource DisabledForegroundBrush}"/>
            </Trigger>
          </ControlTemplate.Triggers>
        </ControlTemplate>
      </Setter.Value>
    </Setter>
  </Style>
  <!--</Snippet6>-->


</ResourceDictionary>