英文:
How to change ListView Header text alignment (when already styled with a DynamicResource)
问题
You can try setting the HorizontalContentAlignment property for the GridViewColumnHeader within the ListViewStyle to Left like this:
<Style x:Key="ListViewStyle" TargetType="{x:Type ListView}"><!-- ... (existing style properties) ... --><!-- Add this setter for GridViewColumnHeader --><Setter Property="GridViewColumnHeader.HorizontalContentAlignment" Value="Left" /><!-- ... (existing style properties) ... --></Style>
This should align the header text of your ListView columns to the left without resetting the header to the default style.
英文:
I'm not very good with WPF and, sometimes, I need to change some settings of programs components I didn't develope.
I want to change a ListView headers from centered to left but this ListView is already styled with the property Style="{DynamicResource ListViewStyle}".
This is the ListViewStyle definition:
<Style x:Key="ListViewStyle"TargetType="{x:Type ListView}"><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="VerticalContentAlignment" Value="Center"/><Setter Property="Background" Value="#121E34"/><Setter Property="FontFamily" Value="{DynamicResource Roboto}"/><Setter Property="FontSize" Value="{DynamicResource FontSize30pt}"/><Setter Property="Template"><Setter.Value><ControlTemplate TargetType="{x:Type ListView}"><Border x:Name="Border"BorderThickness="0"><ScrollViewer Style="{DynamicResource ScrollViewerStyle}"><ItemsPresenter/></ScrollViewer></Border><ControlTemplate.Triggers><Trigger Property="IsGrouping" Value="true"><Setter Property="ScrollViewer.CanContentScroll" Value="false"/><Setter Property="Foreground" Value="green"/></Trigger></ControlTemplate.Triggers></ControlTemplate></Setter.Value></Setter><Setter Property="Background" Value="#121E34"/></Style>
and the ScrollViewerStyle definition is:
<Style x:Key="ScrollViewerStyle"TargetType="{x:Type ScrollViewer}"><Setter Property="Template"><Setter.Value><ControlTemplate TargetType="{x:Type ScrollViewer}"><Grid><Grid.ColumnDefinitions><ColumnDefinition Width="*"/><ColumnDefinition Width="Auto"/></Grid.ColumnDefinitions><Grid.RowDefinitions><RowDefinition Height="*"/><RowDefinition Height="Auto"/></Grid.RowDefinitions><Rectangle Style="{DynamicResource RectangleScrittura}"/><DockPanel><ScrollViewer Height="60"Background="#121E34"DockPanel.Dock="Top"Focusable="false"Foreground="#FFFFFF"HorizontalScrollBarVisibility="Hidden"VerticalScrollBarVisibility="Hidden"><GridViewHeaderRowPresenter Height="62"Margin="10,0"AllowsColumnReorder="{Binding TemplatedParent.View.AllowsColumnReorder, RelativeSource={RelativeSource TemplatedParent}}"ColumnHeaderContainerStyle="{Binding TemplatedParent.View.ColumnHeaderContainerStyle, RelativeSource={RelativeSource TemplatedParent}}"ColumnHeaderContextMenu="{Binding TemplatedParent.View.ColumnHeaderContextMenu, RelativeSource={RelativeSource TemplatedParent}}"ColumnHeaderTemplate="{Binding TemplatedParent.View.ColumnHeaderTemplate, RelativeSource={RelativeSource TemplatedParent}}"ColumnHeaderTemplateSelector="{Binding TemplatedParent.View.ColumnHeaderTemplateSelector, RelativeSource={RelativeSource TemplatedParent}}"ColumnHeaderToolTip="{Binding TemplatedParent.View.ColumnHeaderToolTip, RelativeSource={RelativeSource TemplatedParent}}"Columns="{Binding TemplatedParent.View.Columns, RelativeSource={RelativeSource TemplatedParent}}"OpacityMask="{x:Null}"SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"TextBlock.FontFamily="{DynamicResource Roboto}"Visibility="{Binding TemplatedParent.Visibility, RelativeSource={RelativeSource TemplatedParent}}"></GridViewHeaderRowPresenter></ScrollViewer><ScrollContentPresenter x:Name="PART_ScrollContentPresenter"CanContentScroll="True"CanHorizontallyScroll="False"CanVerticallyScroll="False"KeyboardNavigation.DirectionalNavigation="Local"></ScrollContentPresenter></DockPanel><ScrollBar x:Name="PART_VerticalScrollBar"Grid.Column="1"Width="40"Margin="5,0,0,0"BorderThickness="0"Maximum="{TemplateBinding ScrollableHeight}"Template="{DynamicResource ScrollBarTemplate}"ViewportSize="{TemplateBinding ViewportHeight}"Visibility="{TemplateBinding ComputedVerticalScrollBarVisibility}"Value="{TemplateBinding VerticalOffset}"></ScrollBar><ScrollBar x:Name="PART_HorizontalScrollBar"Grid.Row="1"Width="Auto"Height="40"Margin="0,5,0,0"BorderThickness="0"Maximum="{TemplateBinding ScrollableWidth}"Template="{DynamicResource ScrollBarTemplateHorizontal}"ViewportSize="{TemplateBinding ViewportWidth}"Visibility="{TemplateBinding ComputedHorizontalScrollBarVisibility}"Value="{TemplateBinding HorizontalOffset}"></ScrollBar></Grid></ControlTemplate></Setter.Value></Setter></Style>
I've tried to change the ListView HorizontalContentAlignment with the code below but it resets the header to the default style:
<Style TargetType="{x:Type GridViewColumnHeader}"><Setter Property="HorizontalContentAlignment" Value="Left" /></Style>
What should I do?
答案1
得分: 0
要在现有样式之上应用自定义样式，请使用BasedOn属性来继承其所有属性：
<Style TargetType="{x:Type GridViewColumnHeader}" BasedOn="{StaticResource ListViewStyle}"><Setter Property="HorizontalContentAlignment" Value="Left" /></Style>
查看官方文档以了解有关BasedOn属性的更多信息。
英文:
To apply a custom style on top of an existing one, use the BasedOn property to inherit all of it's properties:
<Style TargetType="{x:Type GridViewColumnHeader}" BasedOn="{StaticResource ListViewStyle}"><Setter Property="HorizontalContentAlignment" Value="Left" /></Style>
See the official documentation to find out more about the BasedOn property.
答案2
得分: 0
I found an easy solution to my problem: adding HorizontalAlignment="Left" inside the GridViewHeaderRowPresenter tag of the ScrollViewerStyle definition did the trick.
英文:
I found an easy solution to my problem: adding HorizontalAlignment="Left" inside the GridViewHeaderRowPresenter tag of the ScrollViewerStyle definition did the trick.
<GridViewHeaderRowPresenter Height="62"Margin="5,0"HorizontalAlignment="Left"AllowsColumnReorder="{Binding TemplatedParent.View.AllowsColumnReorder, RelativeSource={RelativeSource TemplatedParent}}"ColumnHeaderContainerStyle="{Binding TemplatedParent.View.ColumnHeaderContainerStyle, RelativeSource={RelativeSource TemplatedParent}}"ColumnHeaderContextMenu="{Binding TemplatedParent.View.ColumnHeaderContextMenu, RelativeSource={RelativeSource TemplatedParent}}"ColumnHeaderTemplate="{Binding TemplatedParent.View.ColumnHeaderTemplate, RelativeSource={RelativeSource TemplatedParent}}"ColumnHeaderTemplateSelector="{Binding TemplatedParent.View.ColumnHeaderTemplateSelector, RelativeSource={RelativeSource TemplatedParent}}"ColumnHeaderToolTip="{Binding TemplatedParent.View.ColumnHeaderToolTip, RelativeSource={RelativeSource TemplatedParent}}"Columns="{Binding TemplatedParent.View.Columns, RelativeSource={RelativeSource TemplatedParent}}"OpacityMask="{x:Null}"SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"TextBlock.FontFamily="{DynamicResource Roboto}"Visibility="{Binding TemplatedParent.Visibility, RelativeSource={RelativeSource TemplatedParent}}">
</GridViewHeaderRowPresenter>
Thanks to everyone!
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