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How do I make the suggestion list for an AutoSuggestBox wider?
You could update AutoSuggestBox's suggestion list width by editing the default AutoSuggestBox style. It contains SuggestionsList
that use to display suggestions. You could reduce list width by setting small Width property. However, you can't make it wider than AutoSuggestBox input box. because it was limited by SuggestionsPopup
and it's size was managed internally.
<Style TargetType="AutoSuggestBox">
<Setter Property="VerticalAlignment" Value="Top" />
<Setter Property="IsTabStop" Value="False" />
<Setter Property="TextBoxStyle" Value="{StaticResource AutoSuggestBoxTextBoxStyle}" />
<Setter Property="UseSystemFocusVisuals" Value="{ThemeResource IsApplicationFocusVisualKindReveal}" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="AutoSuggestBox">
<Grid x:Name="LayoutRoot">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="Orientation">
<VisualState x:Name="Landscape" />
<VisualState x:Name="Portrait" />
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<TextBox x:Name="TextBox"
Style="{TemplateBinding TextBoxStyle}"
PlaceholderText="{TemplateBinding PlaceholderText}"
Header="{TemplateBinding Header}"
Width="{TemplateBinding Width}"
Description="{TemplateBinding Description}"
ScrollViewer.BringIntoViewOnFocusChange="False"
Canvas.ZIndex="0"
Margin="0"
DesiredCandidateWindowAlignment="BottomEdge"
UseSystemFocusVisuals="{TemplateBinding UseSystemFocusVisuals}" />
<Popup x:Name="SuggestionsPopup" >
<Border x:Name="SuggestionsContainer" Background="DarkGreen">
<ListView x:Name="SuggestionsList"
Background="{ThemeResource AutoSuggestBoxSuggestionsListBackground}"
BorderThickness="{ThemeResource AutoSuggestListBorderThemeThickness}"
BorderBrush="{ThemeResource AutoSuggestBoxSuggestionsListBorderBrush}"
DisplayMemberPath="{TemplateBinding DisplayMemberPath}"
IsItemClickEnabled="True"
ItemTemplate="{TemplateBinding ItemTemplate}"
ItemTemplateSelector="{TemplateBinding ItemTemplateSelector}"
ItemContainerStyle="{TemplateBinding ItemContainerStyle}"
MaxHeight="{ThemeResource AutoSuggestListMaxHeight}"
Margin="{ThemeResource AutoSuggestListMargin}"
Padding="{ThemeResource AutoSuggestListPadding}" />
</Border>
</Popup>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
Thank you.
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