feat(style): add CheckComboBox small style

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NaBian committed 2021-10-18 21:38:51 +08:00
1 parent 253cbfb414
commit a48123eac1
8 files changed
+209 -117

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@@ -7,7 +7,6 @@
xmlns:langs="clr-namespace:HandyControl.Properties.Langs">
<Style x:Key="Tag4CheckComboBoxStyle" BasedOn="{StaticResource TagBaseStyle}" TargetType="hc:Tag">
<Setter Property="Margin" Value="0,3,3,0"/>
<Setter Property="Padding" Value="6,3,4,3"/>
<Setter Property="Height" Value="Auto"/>
<Setter Property="Template">
@@ -49,7 +48,7 @@
<ColumnDefinition Width="30"/>
</Grid.ColumnDefinitions>
<Border Grid.ColumnSpan="2" CornerRadius="{Binding Path=(hc:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="true"/>
<Path Grid.Column="1" x:Name="arrow" Data="{StaticResource DownGeometry}" Stretch="Uniform" Fill="{TemplateBinding BorderBrush}" HorizontalAlignment="Center" Margin="7" VerticalAlignment="Center"/>
<Path Grid.Column="1" x:Name="arrow" Data="{StaticResource DownGeometry}" Stretch="Uniform" Fill="{TemplateBinding BorderBrush}" HorizontalAlignment="Center" Width="16" VerticalAlignment="Center"/>
<Border Margin="1" Grid.Column="0" Visibility="{Binding SelectedItem,RelativeSource={RelativeSource AncestorType=hc:CheckComboBox},Converter={StaticResource Object2VisibilityReConverter}}">
<ContentPresenter Focusable="False" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
</Border>
@@ -124,7 +123,7 @@
</Popup>
<ToggleButton Grid.Column="0" x:Name="toggleButton" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Grid.ColumnSpan="2" IsChecked="{Binding IsDropDownOpen,RelativeSource={RelativeSource TemplatedParent},Mode=TwoWay}" Style="{StaticResource CheckComboBoxToggleButton}"/>
<Border Grid.Column="0" Margin="-1,1">
<WrapPanel Name="PART_Panel" Margin="5,0,5,3"/>
<hc:UniformSpacingPanel x:Name="PART_Panel" Margin="{TemplateBinding Padding}" Spacing="4" ChildWrapping="Wrap" ItemVerticalAlignment="Center"/>
</Border>
</Grid>
<ControlTemplate.Triggers>
@@ -169,6 +168,7 @@
<Setter Property="Background" Value="{DynamicResource RegionBrush}"/>
<Setter Property="ItemContainerStyle" Value="{StaticResource CheckComboBoxItemBaseStyle}"/>
<Setter Property="hc:BorderElement.CornerRadius" Value="{StaticResource DefaultCornerRadius}"/>
<Setter Property="hc:TitleElement.MarginOnTheLeft" Value="0,8,6,8"/>
<Setter Property="BorderBrush" Value="{DynamicResource BorderBrush}"/>
<Setter Property="Foreground" Value="{DynamicResource PrimaryTextBrush}"/>
<Setter Property="BorderThickness" Value="1"/>
@@ -178,7 +178,7 @@
<Setter Property="ScrollViewer.CanContentScroll" Value="true"/>
<Setter Property="ScrollViewer.PanningMode" Value="Both"/>
<Setter Property="Stylus.IsFlicksEnabled" Value="False"/>
<Setter Property="Padding" Value="{StaticResource DefaultInputPadding}"/>
<Setter Property="Padding" Value="6,3"/>
<Setter Property="Template" Value="{StaticResource CheckComboBoxTemplate}"/>
<Setter Property="VerticalContentAlignment" Value="Center"/>
<Setter Property="Validation.ErrorTemplate" Value="{x:Null}"/>
@@ -194,10 +194,10 @@
<ColumnDefinition/>
<ColumnDefinition Width="30"/>
</Grid.ColumnDefinitions>
<StackPanel Grid.ColumnSpan="2" Visibility="{Binding Path=(hc:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource String2VisibilityConverter}}" Orientation="Horizontal" Margin="{TemplateBinding Padding}">
<TextBlock Margin="1,0,0,0" Text="{Binding Path=(hc:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent}}"/>
<ContentPresenter TextElement.Foreground="{DynamicResource DangerBrush}" Margin="4,0,0,0" Content="{Binding Path=(hc:InfoElement.Symbol),RelativeSource={RelativeSource TemplatedParent}}" Visibility="{Binding Path=(hc:InfoElement.Necessary),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource Boolean2VisibilityConverter}}"/>
</StackPanel>
<DockPanel Grid.ColumnSpan="2" LastChildFill="True" Visibility="{Binding Path=(hc:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource String2VisibilityConverter}}" HorizontalAlignment="{Binding Path=(hc:TitleElement.HorizontalAlignment),RelativeSource={RelativeSource TemplatedParent}}" Margin="{TemplateBinding Padding}">
<ContentPresenter DockPanel.Dock="Right" TextElement.Foreground="{DynamicResource DangerBrush}" Margin="4,0,0,0" Content="{Binding Path=(hc:InfoElement.Symbol),RelativeSource={RelativeSource TemplatedParent}}" Visibility="{Binding Path=(hc:InfoElement.Necessary),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource Boolean2VisibilityConverter}}"/>
<TextBlock hc:TextBlockAttach.AutoTooltip="True" TextWrapping="NoWrap" TextTrimming="CharacterEllipsis" Margin="1,0,1,0" Text="{Binding Path=(hc:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent}}"/>
</DockPanel>
<Popup x:Name="PART_Popup" Grid.Row="1" Grid.Column="0" PlacementTarget="{Binding ElementName=toggleButton}" AllowsTransparency="true" Grid.ColumnSpan="2" StaysOpen="False" IsOpen="{Binding IsDropDownOpen,RelativeSource={RelativeSource TemplatedParent},Mode=TwoWay}" Margin="1" PopupAnimation="{StaticResource {x:Static SystemParameters.ComboBoxPopupAnimationKey}}" Placement="Bottom">
<Decorator Margin="8 0">
<Border Effect="{StaticResource EffectShadow2}" BorderThickness="0,1,0,0" Margin="0,0,0,8" CornerRadius="{Binding Path=(hc:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" x:Name="dropDownBorder" MaxHeight="{TemplateBinding MaxDropDownHeight}" BorderBrush="{DynamicResource BorderBrush}" Background="{DynamicResource RegionBrush}">
@@ -222,8 +222,8 @@
</Decorator>
</Popup>
<ToggleButton Grid.Row="1" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" Padding="{TemplateBinding Padding}" Content="{Binding Path=(hc:InfoElement.Placeholder),RelativeSource={RelativeSource TemplatedParent}}" Grid.Column="0" x:Name="toggleButton" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Grid.ColumnSpan="2" IsChecked="{Binding IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" Style="{StaticResource CheckComboBoxWatermarkToggleButton}"/>
<Border Grid.Row="1" Grid.Column="0" Margin="1,0">
<WrapPanel Name="PART_Panel" Margin="3,1,3,4"/>
<Border Grid.Row="1" Grid.Column="0" Margin="-1,1">
<hc:UniformSpacingPanel x:Name="PART_Panel" Margin="{TemplateBinding Padding}" Spacing="4" ChildWrapping="Wrap" ItemVerticalAlignment="Center"/>
</Border>
</Grid>
<ControlTemplate.Triggers>
@@ -268,10 +268,10 @@
<ColumnDefinition/>
<ColumnDefinition Width="30"/>
</Grid.ColumnDefinitions>
<StackPanel VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Margin="0,7,6,7" Visibility="{Binding Path=(hc:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource String2VisibilityConverter}}" Orientation="Horizontal">
<TextBlock Text="{Binding Path=(hc:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent}}"/>
<ContentPresenter TextElement.Foreground="{DynamicResource DangerBrush}" Margin="4,0,0,0" Content="{Binding Path=(hc:InfoElement.Symbol),RelativeSource={RelativeSource TemplatedParent}}" Visibility="{Binding Path=(hc:InfoElement.Necessary),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource Boolean2VisibilityConverter}}"/>
</StackPanel>
<DockPanel LastChildFill="True" Visibility="{Binding Path=(hc:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource String2VisibilityConverter}}" HorizontalAlignment="{Binding Path=(hc:TitleElement.HorizontalAlignment),RelativeSource={RelativeSource TemplatedParent}}" VerticalAlignment="{Binding Path=(hc:TitleElement.VerticalAlignment),RelativeSource={RelativeSource TemplatedParent}}" Margin="{Binding Path=(hc:TitleElement.MarginOnTheLeft),RelativeSource={RelativeSource TemplatedParent}}">
<ContentPresenter DockPanel.Dock="Right" TextElement.Foreground="{DynamicResource DangerBrush}" Margin="4,0,0,0" Content="{Binding Path=(hc:InfoElement.Symbol),RelativeSource={RelativeSource TemplatedParent}}" Visibility="{Binding Path=(hc:InfoElement.Necessary),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource Boolean2VisibilityConverter}}"/>
<TextBlock hc:TextBlockAttach.AutoTooltip="True" TextWrapping="NoWrap" TextTrimming="CharacterEllipsis" Text="{Binding Path=(hc:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent}}"/>
</DockPanel>
<Popup Grid.Column="1" x:Name="PART_Popup" PlacementTarget="{Binding ElementName=toggleButton}" AllowsTransparency="true" Grid.ColumnSpan="2" StaysOpen="False" IsOpen="{Binding IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" Margin="1" PopupAnimation="{StaticResource {x:Static SystemParameters.ComboBoxPopupAnimationKey}}" Placement="Bottom">
<Decorator Margin="8 0">
<Border Effect="{StaticResource EffectShadow2}" BorderThickness="0,1,0,0" Margin="0,0,0,8" CornerRadius="{Binding Path=(hc:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" x:Name="dropDownBorder" MaxHeight="{TemplateBinding MaxDropDownHeight}" BorderBrush="{DynamicResource BorderBrush}" Background="{DynamicResource RegionBrush}">
@@ -296,8 +296,8 @@
</Decorator>
</Popup>
<ToggleButton Grid.Column="1" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" Padding="{TemplateBinding Padding}" Content="{Binding Path=(hc:InfoElement.Placeholder),RelativeSource={RelativeSource TemplatedParent}}" x:Name="toggleButton" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Grid.ColumnSpan="2" IsChecked="{Binding IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" Style="{StaticResource CheckComboBoxWatermarkToggleButton}"/>
<Border Grid.Column="1" Margin="1,0">
<WrapPanel Name="PART_Panel" Margin="3,1,3,4"/>
<Border Grid.Column="1" Margin="-1,1">
<hc:UniformSpacingPanel x:Name="PART_Panel" Margin="{TemplateBinding Padding}" Spacing="4" ChildWrapping="Wrap" ItemVerticalAlignment="Center"/>
</Border>
</Grid>
<ControlTemplate.Triggers>
@@ -366,10 +366,10 @@
<ColumnDefinition/>
<ColumnDefinition Width="Auto" MinWidth="30"/>
</Grid.ColumnDefinitions>
<StackPanel Grid.ColumnSpan="2" Visibility="{Binding Path=(hc:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource String2VisibilityConverter}}" Orientation="Horizontal" Margin="{TemplateBinding Padding}">
<TextBlock Margin="1,0,0,0" Text="{Binding Path=(hc:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent}}"/>
<ContentPresenter TextElement.Foreground="{DynamicResource DangerBrush}" Margin="4,0,0,0" Content="{Binding Path=(hc:InfoElement.Symbol),RelativeSource={RelativeSource TemplatedParent}}" Visibility="{Binding Path=(hc:InfoElement.Necessary),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource Boolean2VisibilityConverter}}"/>
</StackPanel>
<DockPanel Grid.ColumnSpan="2" LastChildFill="True" Visibility="{Binding Path=(hc:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource String2VisibilityConverter}}" HorizontalAlignment="{Binding Path=(hc:TitleElement.HorizontalAlignment),RelativeSource={RelativeSource TemplatedParent}}" Margin="{TemplateBinding Padding}">
<ContentPresenter DockPanel.Dock="Right" TextElement.Foreground="{DynamicResource DangerBrush}" Margin="4,0,0,0" Content="{Binding Path=(hc:InfoElement.Symbol),RelativeSource={RelativeSource TemplatedParent}}" Visibility="{Binding Path=(hc:InfoElement.Necessary),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource Boolean2VisibilityConverter}}"/>
<TextBlock hc:TextBlockAttach.AutoTooltip="True" TextWrapping="NoWrap" TextTrimming="CharacterEllipsis" Margin="1,0,1,0" Text="{Binding Path=(hc:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent}}"/>
</DockPanel>
<Popup Grid.Row="1" Grid.Column="0" x:Name="PART_Popup" PlacementTarget="{Binding ElementName=toggleButton}" AllowsTransparency="true" Grid.ColumnSpan="2" StaysOpen="False" IsOpen="{Binding IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" Margin="1" PopupAnimation="{StaticResource {x:Static SystemParameters.ComboBoxPopupAnimationKey}}" Placement="Bottom">
<Decorator Margin="8 0">
<Border Effect="{StaticResource EffectShadow2}" BorderThickness="0,1,0,0" Margin="0,0,0,8" CornerRadius="{Binding Path=(hc:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" x:Name="dropDownBorder" MaxHeight="{TemplateBinding MaxDropDownHeight}" BorderBrush="{DynamicResource BorderBrush}" Background="{DynamicResource RegionBrush}">
@@ -395,10 +395,10 @@
</Popup>
<TextBlock Grid.Column="0" Grid.ColumnSpan="2" FontSize="12" Text="{TemplateBinding ErrorStr}" Name="TextBlockError" VerticalAlignment="Bottom" Margin="9,0,0,4" Foreground="{DynamicResource DangerBrush}" Grid.Row="1"/>
<ToggleButton Grid.Row="1" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" Padding="{TemplateBinding Padding}" Content="{Binding Path=(hc:InfoElement.Placeholder),RelativeSource={RelativeSource TemplatedParent}}" Grid.Column="0" x:Name="toggleButton" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Grid.ColumnSpan="2" IsChecked="{Binding IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" Style="{StaticResource CheckComboBoxWatermarkToggleButton}"/>
<Border Grid.Row="1" Grid.Column="0" Margin="1,0">
<WrapPanel Name="PART_Panel" Margin="3,1,3,4"/>
<Border Grid.Row="1" Grid.Column="0" Margin="-1,1">
<hc:UniformSpacingPanel x:Name="PART_Panel" Margin="{TemplateBinding Padding}" Spacing="4" ChildWrapping="Wrap" ItemVerticalAlignment="Center"/>
</Border>
<Button Grid.Row="1" Command="interactivity:ControlCommands.Clear" Margin="0,0,26,0" Visibility="Collapsed" Name="ButtonClear" Width="16" Grid.Column="1" Style="{StaticResource ButtonIcon}" Padding="0,6" hc:IconElement.Geometry="{StaticResource DeleteFillCircleGeometry}" Foreground="{TemplateBinding BorderBrush}"/>
<Button Height="{x:Static system:Double.NaN}" Grid.Row="1" Command="interactivity:ControlCommands.Clear" Margin="0,0,26,0" Visibility="Collapsed" Name="ButtonClear" Width="16" Grid.Column="1" Style="{StaticResource ButtonIcon}" Padding="0" hc:IconElement.Geometry="{StaticResource DeleteFillCircleGeometry}" Foreground="{TemplateBinding BorderBrush}"/>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="HasItems" Value="false">
@@ -480,10 +480,10 @@
<ColumnDefinition/>
<ColumnDefinition Width="Auto" MinWidth="30"/>
</Grid.ColumnDefinitions>
<StackPanel VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Margin="0,7,6,7" Visibility="{Binding Path=(hc:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource String2VisibilityConverter}}" Orientation="Horizontal">
<TextBlock Text="{Binding Path=(hc:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent}}"/>
<ContentPresenter TextElement.Foreground="{DynamicResource DangerBrush}" Margin="4,0,0,0" Content="{Binding Path=(hc:InfoElement.Symbol),RelativeSource={RelativeSource TemplatedParent}}" Visibility="{Binding Path=(hc:InfoElement.Necessary),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource Boolean2VisibilityConverter}}"/>
</StackPanel>
<DockPanel LastChildFill="True" Visibility="{Binding Path=(hc:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource String2VisibilityConverter}}" HorizontalAlignment="{Binding Path=(hc:TitleElement.HorizontalAlignment),RelativeSource={RelativeSource TemplatedParent}}" VerticalAlignment="{Binding Path=(hc:TitleElement.VerticalAlignment),RelativeSource={RelativeSource TemplatedParent}}" Margin="{Binding Path=(hc:TitleElement.MarginOnTheLeft),RelativeSource={RelativeSource TemplatedParent}}">
<ContentPresenter DockPanel.Dock="Right" TextElement.Foreground="{DynamicResource DangerBrush}" Margin="4,0,0,0" Content="{Binding Path=(hc:InfoElement.Symbol),RelativeSource={RelativeSource TemplatedParent}}" Visibility="{Binding Path=(hc:InfoElement.Necessary),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource Boolean2VisibilityConverter}}"/>
<TextBlock hc:TextBlockAttach.AutoTooltip="True" TextWrapping="NoWrap" TextTrimming="CharacterEllipsis" Text="{Binding Path=(hc:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent}}"/>
</DockPanel>
<Popup Grid.Column="1" x:Name="PART_Popup" PlacementTarget="{Binding ElementName=toggleButton}" AllowsTransparency="true" Grid.ColumnSpan="2" StaysOpen="False" IsOpen="{Binding IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" Margin="1" PopupAnimation="{StaticResource {x:Static SystemParameters.ComboBoxPopupAnimationKey}}" Placement="Bottom">
<Decorator Margin="8 0">
<Border Effect="{StaticResource EffectShadow2}" BorderThickness="0,1,0,0" Margin="0,0,0,8" CornerRadius="{Binding Path=(hc:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" x:Name="dropDownBorder" MaxHeight="{TemplateBinding MaxDropDownHeight}" BorderBrush="{DynamicResource BorderBrush}" Background="{DynamicResource RegionBrush}">
@@ -509,10 +509,10 @@
</Popup>
<TextBlock Grid.Column="1" Grid.ColumnSpan="2" FontSize="12" Text="{TemplateBinding ErrorStr}" Name="TextBlockError" VerticalAlignment="Bottom" Margin="9,0,0,4" Foreground="{DynamicResource DangerBrush}"/>
<ToggleButton Grid.Column="1" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" Padding="{TemplateBinding Padding}" Content="{Binding Path=(hc:InfoElement.Placeholder),RelativeSource={RelativeSource TemplatedParent}}" x:Name="toggleButton" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Grid.ColumnSpan="2" IsChecked="{Binding IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" Style="{StaticResource CheckComboBoxWatermarkToggleButton}"/>
<Border Grid.Column="1" Margin="1,0">
<WrapPanel Name="PART_Panel" Margin="3,1,3,4"/>
<Border Grid.Column="1" Margin="-1,1">
<hc:UniformSpacingPanel x:Name="PART_Panel" Margin="{TemplateBinding Padding}" Spacing="4" ChildWrapping="Wrap" ItemVerticalAlignment="Center"/>
</Border>
<Button Command="interactivity:ControlCommands.Clear" Margin="0,0,26,0" Visibility="Collapsed" Name="ButtonClear" Width="16" Grid.Column="2" Style="{StaticResource ButtonIcon}" Padding="0,6" hc:IconElement.Geometry="{StaticResource DeleteFillCircleGeometry}" Foreground="{TemplateBinding BorderBrush}"/>
<Button Height="{x:Static system:Double.NaN}" Command="interactivity:ControlCommands.Clear" Margin="0,0,26,0" Visibility="Collapsed" Name="ButtonClear" Width="16" Grid.Column="2" Style="{StaticResource ButtonIcon}" Padding="0" hc:IconElement.Geometry="{StaticResource DeleteFillCircleGeometry}" Foreground="{TemplateBinding BorderBrush}"/>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="HasItems" Value="false">