AutoCompleteBox Styles and Templates
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This topic describes the styles and templates for the AutoCompleteBox control. You can modify the default ControlTemplate to give the control a unique appearance. For more information, see Customizing the Appearance of an Existing Control by Using a ControlTemplate.
AutoCompleteBox Parts
The following table lists the named parts for the AutoCompleteBox control.
Part |
Type |
Description |
|---|---|---|
SelectionAdapter |
An ISelectionAdapter that allows the user to select from a list of possible matches. |
|
Selector |
A Selector that allows the user to select from a list of possible matches. |
|
Text |
A TextBox where you can type the text. |
|
Popup |
A drop-down that lists the possible matches. |
.gif "Note") Note: |
|---|
You can use either a SelectionAdapter part or a Selector part while customizing the AutoCompleteBox template. The Selector part is preferred because it provides better support for Expression Blend. |
AutoCompleteBox States
The following table lists the visual states for the AutoCompleteBox control.
VisualState Name |
VisualStateGroup Name |
Description |
|---|---|---|
Normal |
CommonStates |
The default state. |
MouseOver |
CommonStates |
The mouse pointer is positioned over the AutoCompleteBox control. |
Pressed |
CommonStates |
The AutoCompleteBox control is pressed. |
Disabled |
CommonStates |
The AutoCompleteBox control is disabled. |
Focused |
FocusStates |
The AutoCompleteBox control has focus. |
Unfocused |
FocusStates |
The AutoCompleteBox control does not have focus. |
PopupOpened |
PopupStates |
The drop-down is opened. |
PopupClosed |
PopupStates |
The drop-down is closed. |
Valid |
ValidationStates |
The AutoCompleteBox control is valid. |
InvalidFocused |
ValidationStates |
The AutoCompleteBox control is not valid and has focus. |
InvalidUnfocused |
ValidationStates |
The AutoCompleteBox control is not valid and does not have focus. |
AutoCompleteBox Style Properties
The following table lists the Style properties of the AutoCompleteBox control. You must set the TargetType property when you create a Style.
Property Name |
Target Type |
Description |
|---|---|---|
The style applied to the list box that contains the possible matches. |
||
The style applied to the TextBox where you can type the text. |
Default Style and Template
The following shows the XML namespace mappings that you have to specify when you work with styles and templates.
<!-- XML Namespace mappings. -->
xmlns:input="clr-namespace:System.Windows.Controls.Input"
xmlns:vsm="clr-namespace:System.Windows;assembly=System.Windows"
.gif "Important note") Important Note: |
|---|
The default templates for controls in Silverlight 4 still use the Silverlight 3-style prefixes, such as controls: and data: instead of sdk:. This is because the default control templates support Silverlight 3 and Silverlight 4 simultaneously. For more information, see Prefixes and Mappings for Silverlight Libraries. |
| Note: |
|---|
The default templates still specify the vsm: XML namespace mapping for the VisualStateManager element for legacy reasons. You can however, use the VisualStateManager element without specifying the vsm: mapping. |
The following XAML shows the default style and template for the AutoCompleteBox control.
<Style TargetType="input:AutoCompleteBox">
<Setter Property="IsTabStop" Value="False" />
<Setter Property="Padding" Value="2" />
<Setter Property="BorderThickness" Value="1" />
<Setter Property="BorderBrush">
<Setter.Value>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FFA3AEB9" Offset="0" />
<GradientStop Color="#FF8399A9" Offset="0.375" />
<GradientStop Color="#FF718597" Offset="0.375" />
<GradientStop Color="#FF617584" Offset="1" />
</LinearGradientBrush>
</Setter.Value>
</Setter>
<Setter Property="Background" Value="#FFFFFFFF" />
<Setter Property="Foreground" Value="#FF000000" />
<Setter Property="MinWidth" Value="45" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="input:AutoCompleteBox">
<Grid Opacity="{TemplateBinding Opacity}">
<TextBox Padding="{TemplateBinding Padding}" Background="{TemplateBinding Background}" IsTabStop="True" x:Name="Text" Style="{TemplateBinding TextBoxStyle}" BorderThickness="{TemplateBinding BorderThickness}" BorderBrush="{TemplateBinding BorderBrush}" Foreground="{TemplateBinding Foreground}" Margin="0" />
<Border x:Name="ValidationErrorElement" Visibility="Collapsed" BorderBrush="#FFDB000C" BorderThickness="1" CornerRadius="1">
<ToolTipService.ToolTip>
<ToolTip x:Name="validationTooltip" DataContext="{Binding RelativeSource={RelativeSource TemplatedParent}}" Template="{StaticResource CommonValidationToolTipTemplate}" Placement="Right" PlacementTarget="{Binding RelativeSource={RelativeSource TemplatedParent}}">
<ToolTip.Triggers>
<EventTrigger RoutedEvent="Canvas.Loaded">
<BeginStoryboard>
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="validationTooltip" Storyboard.TargetProperty="IsHitTestVisible">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<system:Boolean>true</system:Boolean>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</ToolTip.Triggers>
</ToolTip>
</ToolTipService.ToolTip>
<Grid Height="12" HorizontalAlignment="Right" Margin="1,-4,-4,0" VerticalAlignment="Top" Width="12" Background="Transparent">
<Path Fill="#FFDC000C" Margin="1,3,0,0" Data="M 1,0 L6,0 A 2,2 90 0 1 8,2 L8,7 z" />
<Path Fill="#ffffff" Margin="1,3,0,0" Data="M 0,0 L2,0 L 8,6 L8,8" />
</Grid>
</Border>
<Popup x:Name="Popup">
<Grid Opacity="{TemplateBinding Opacity}">
<Border x:Name="PopupBorder" HorizontalAlignment="Stretch" Opacity="0" BorderThickness="0">
<Border.RenderTransform>
<TranslateTransform X="1" Y="1" />
</Border.RenderTransform>
<Border.Background>
<SolidColorBrush Color="#11000000" />
</Border.Background>
<Border HorizontalAlignment="Stretch" Opacity="1.0" Padding="0" BorderThickness="{TemplateBinding BorderThickness}" BorderBrush="{TemplateBinding BorderBrush}" CornerRadius="0">
<Border.RenderTransform>
<TransformGroup>
<TranslateTransform X="-1" Y="-1" />
</TransformGroup>
</Border.RenderTransform>
<Border.Background>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FFDDDDDD" Offset="0" />
<GradientStop Color="#AADDDDDD" Offset="1" />
</LinearGradientBrush>
</Border.Background>
<ListBox x:Name="Selector" ScrollViewer.HorizontalScrollBarVisibility="Auto" ScrollViewer.VerticalScrollBarVisibility="Auto" ItemContainerStyle="{TemplateBinding ItemContainerStyle}" Background="{TemplateBinding Background}" Foreground="{TemplateBinding Foreground}" BorderThickness="0" ItemTemplate="{TemplateBinding ItemTemplate}" />
</Border>
</Border>
</Grid>
</Popup>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="PopupStates">
<VisualStateGroup.Transitions>
<VisualTransition GeneratedDuration="0:0:0.1" To="PopupOpened" />
<VisualTransition GeneratedDuration="0:0:0.2" To="PopupClosed" />
</VisualStateGroup.Transitions>
<VisualState x:Name="PopupOpened">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="PopupBorder" Storyboard.TargetProperty="Opacity" To="1.0" />
</Storyboard>
</VisualState>
<VisualState x:Name="PopupClosed">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="PopupBorder" Storyboard.TargetProperty="Opacity" To="0.0" />
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="ValidationStates">
<VisualState x:Name="Valid" />
<VisualState x:Name="InvalidUnfocused">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ValidationErrorElement" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="InvalidFocused">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ValidationErrorElement" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="validationTooltip" Storyboard.TargetProperty="IsOpen">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<system:Boolean>True</system:Boolean>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
The default ControlTemplate for AutoCompleteBox references the ControlTemplate for CommonValidationTooltip. The following XAML shows the ControlTemplate for CommonValidationTooltip that you must specify when you work with the AutoCompleteBox control templates:
<ControlTemplate x:Key="CommonValidationToolTipTemplate" TargetType="ToolTip">
<Grid x:Name="Root" Margin="5,0" RenderTransformOrigin="0,0" Opacity="0">
<Grid.RenderTransform>
<TranslateTransform x:Name="Translation" X="-25" />
</Grid.RenderTransform>
<vsm:VisualStateManager.VisualStateGroups>
<vsm:VisualStateGroup Name="OpenStates">
<vsm:VisualStateGroup.Transitions>
<vsm:VisualTransition GeneratedDuration="0" />
<vsm:VisualTransition To="Open" GeneratedDuration="0:0:0.2">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="Translation" Storyboard.TargetProperty="X" To="0" Duration="0:0:0.2">
<DoubleAnimation.EasingFunction>
<BackEase Amplitude=".3" EasingMode="EaseOut" />
</DoubleAnimation.EasingFunction>
</DoubleAnimation>
<DoubleAnimation Storyboard.TargetName="Root" Storyboard.TargetProperty="Opacity" To="1" Duration="0:0:0.2" />
</Storyboard>
</vsm:VisualTransition>
</vsm:VisualStateGroup.Transitions>
<vsm:VisualState x:Name="Closed">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="Root" Storyboard.TargetProperty="Opacity" To="0" Duration="0" />
</Storyboard>
</vsm:VisualState>
<vsm:VisualState x:Name="Open">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="Translation" Storyboard.TargetProperty="X" To="0" Duration="0" />
<DoubleAnimation Storyboard.TargetName="Root" Storyboard.TargetProperty="Opacity" To="1" Duration="0" />
</Storyboard>
</vsm:VisualState>
</vsm:VisualStateGroup>
</vsm:VisualStateManager.VisualStateGroups>
<Border Margin="4,4,-4,-4" Background="#052A2E31" CornerRadius="5" />
<Border Margin="3,3,-3,-3" Background="#152A2E31" CornerRadius="4" />
<Border Margin="2,2,-2,-2" Background="#252A2E31" CornerRadius="3" />
<Border Margin="1,1,-1,-1" Background="#352A2E31" CornerRadius="2" />
<Border Background="#FFDC000C" CornerRadius="2">
<TextBlock UseLayoutRounding="false" Foreground="White" Margin="8,4,8,4" MaxWidth="250" TextWrapping="Wrap" Text="{Binding (Validation.Errors)[0].ErrorContent}" />
</Border>
</Grid>
</ControlTemplate>
See Also