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feat: MultiComboBox may support placeholder.

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This commit is contained in:
Gehongyan
2024-08-21 13:23:56 +08:00
parent 0c17aec5c3
commit f737e02ac3
3 changed files with 26 additions and 1 deletions
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15
src/Ursa.Themes.Semi/Controls/MultiComboBox.axaml
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@@ -42,6 +42,18 @@
Foreground="{DynamicResource TextBoxInnerForeground}"
IsVisible="{TemplateBinding InnerLeftContent,
Converter={x:Static ObjectConverters.IsNotNull}}" />
<TextBlock
x:Name="PlaceholderTextBlock"
Grid.Column="1"
Grid.ColumnSpan="2"
Margin="{TemplateBinding Padding}"
TextTrimming="CharacterEllipsis"
HorizontalAlignment="Left"
VerticalAlignment="Center"
Foreground="{TemplateBinding Foreground}"
IsVisible="False"
Opacity="0.3"
Text="{TemplateBinding PlaceholderText}" />
<ScrollViewer
Grid.Column="1"
Grid.ColumnSpan="2"
@@ -135,6 +147,9 @@
</Style>
</Style>
<Style Selector="^:selection-empty /template/ TextBlock#PlaceholderTextBlock">
<Setter Property="IsVisible" Value="{Binding $parent[ComboBox].SelectionBoxItem, Converter={x:Static ObjectConverters.IsNotNull}}" />
</Style>
<!-- Pointerover State -->
<Style Selector="^:pointerover">