问题
I need to keep the HeaderTemplate of a ListView visible at all times, but I don't know what to set, or what part of the ListView's template to change to do that.
What I currently have causes the header of the ListView to scroll off the top when scrolling down through items.
How can I keep the header "row" of the ListView visible even when scrolling through the ListView's items??
Here's my XAML:
<ListView x:Name="permitResults"
Grid.Row="1"
AutomationProperties.AutomationId="PermitResults"
AutomationProperties.Name="Permit Search Results"
ItemsSource="{Binding Source={StaticResource ResultsSource}}"
ItemClick="permitResults_ItemClick"
SelectionMode="None"
TabIndex="1"
Padding="0"
Margin="0"
BorderThickness="0"
IsSwipeEnabled="True"
IsItemClickEnabled="True"
ScrollViewer.VerticalScrollBarVisibility="Auto" >
<ListView.HeaderTemplate>
<DataTemplate>
<Grid Margin="0,0,0,0" Width="1366" Height="Auto" HorizontalAlignment="Left">
<Grid.Resources>
<Style TargetType="TextBlock" BasedOn="{StaticResource SearchGridResultsHeaderTextBlock}">
<Setter Property="HorizontalAlignment" Value="Left"></Setter>
</Style>
</Grid.Resources>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"></RowDefinition>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="2*"/>
<ColumnDefinition Width="2*"/>
<ColumnDefinition Width="3*"/>
<ColumnDefinition Width="2*"/>
<ColumnDefinition Width="6*"/>
<ColumnDefinition Width="2*"/>
</Grid.ColumnDefinitions>
<TextBlock Grid.Column="0" Text="Permit #" MaxLines="2" TextWrapping="WrapWholeWords"/>
<TextBlock Grid.Column="1" Text="County" TextWrapping="WrapWholeWords" />
<TextBlock Grid.Column="2" Text="Business Name" TextWrapping="WrapWholeWords" />
<TextBlock Grid.Column="3" Text="Status" TextWrapping="WrapWholeWords" />
<TextBlock Grid.Column="4" Text="Type" TextWrapping="WrapWholeWords" />
<TextBlock Grid.Column="5" Text="FY" TextWrapping="WrapWholeWords" />
</Grid>
</DataTemplate>
</ListView.HeaderTemplate>
<ListView.ItemTemplate>
<DataTemplate>
<Grid Margin="-11,0,0,0" Width="1366" Height="Auto">
<Grid.Resources>
<Style TargetType="TextBlock" BasedOn="{StaticResource SearchGridResultsTextBlock}">
<Setter Property="HorizontalAlignment" Value="Left"></Setter>
</Style>
</Grid.Resources>
<Grid.RowDefinitions>
<RowDefinition Height="44"></RowDefinition>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="2*"/>
<ColumnDefinition Width="2*"/>
<ColumnDefinition Width="3*"/>
<ColumnDefinition Width="2*"/>
<ColumnDefinition Width="6*"/>
<ColumnDefinition Width="2*"/>
</Grid.ColumnDefinitions>
<TextBlock Grid.Column="0" Text="{Binding PermitNumber}" TextWrapping="WrapWholeWords" />
<TextBlock Grid.Column="1" Text="{Binding County}" TextWrapping="NoWrap" />
<TextBlock Grid.Column="2" Text="{Binding BusinessName}" TextWrapping="NoWrap" />
<TextBlock Grid.Column="3" Text="{Binding Status}" TextWrapping="NoWrap" />
<TextBlock Grid.Column="4" Text="{Binding PermitType}" TextWrapping="NoWrap" />
<TextBlock Grid.Column="5" Text="{Binding EffFiscalYear}" TextWrapping="NoWrap" />
</Grid>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
回答1:
Apply this style to your ListView and you will have static header
<Style TargetType="ListView" x:Key="FixedHeaderListViewStyle">
<Setter Property="IsTabStop" Value="False" />
<Setter Property="TabNavigation" Value="Once" />
<Setter Property="IsSwipeEnabled" Value="True" />
<Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Disabled" />
<Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto" />
<Setter Property="ScrollViewer.HorizontalScrollMode" Value="Disabled" />
<Setter Property="ScrollViewer.IsHorizontalRailEnabled" Value="False" />
<Setter Property="ScrollViewer.VerticalScrollMode" Value="Enabled" />
<Setter Property="ScrollViewer.IsVerticalRailEnabled" Value="True" />
<Setter Property="ScrollViewer.ZoomMode" Value="Disabled" />
<Setter Property="ScrollViewer.IsDeferredScrollingEnabled" Value="False" />
<Setter Property="ScrollViewer.BringIntoViewOnFocusChange" Value="True" />
<Setter Property="UseSystemFocusVisuals" Value="True" />
<Setter Property="ItemContainerTransitions">
<Setter.Value>
<TransitionCollection>
<AddDeleteThemeTransition />
<ContentThemeTransition />
<ReorderThemeTransition />
<EntranceThemeTransition IsStaggeringEnabled="False" />
</TransitionCollection>
</Setter.Value>
</Setter>
<Setter Property="ItemsPanel">
<Setter.Value>
<ItemsPanelTemplate>
<ItemsStackPanel Orientation="Vertical" />
</ItemsPanelTemplate>
</Setter.Value>
</Setter>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ListView">
<Border BorderBrush="{TemplateBinding BorderBrush}"
Background="{TemplateBinding Background}"
BorderThickness="{TemplateBinding BorderThickness}">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition/>
</Grid.RowDefinitions>
<ContentControl Content="{TemplateBinding Header}"
ContentTemplate="{TemplateBinding HeaderTemplate}"
ContentTransitions="{TemplateBinding HeaderTransitions}"/>
<ScrollViewer x:Name="ScrollViewer"
Grid.Row="1"
TabNavigation="{TemplateBinding TabNavigation}"
HorizontalScrollMode="{TemplateBinding ScrollViewer.HorizontalScrollMode}"
HorizontalScrollBarVisibility="{TemplateBinding ScrollViewer.HorizontalScrollBarVisibility}"
IsHorizontalScrollChainingEnabled="{TemplateBinding ScrollViewer.IsHorizontalScrollChainingEnabled}"
VerticalScrollMode="{TemplateBinding ScrollViewer.VerticalScrollMode}"
VerticalScrollBarVisibility="{TemplateBinding ScrollViewer.VerticalScrollBarVisibility}"
IsVerticalScrollChainingEnabled="{TemplateBinding ScrollViewer.IsVerticalScrollChainingEnabled}"
IsHorizontalRailEnabled="{TemplateBinding ScrollViewer.IsHorizontalRailEnabled}"
IsVerticalRailEnabled="{TemplateBinding ScrollViewer.IsVerticalRailEnabled}"
ZoomMode="{TemplateBinding ScrollViewer.ZoomMode}"
IsDeferredScrollingEnabled="{TemplateBinding ScrollViewer.IsDeferredScrollingEnabled}"
BringIntoViewOnFocusChange="{TemplateBinding ScrollViewer.BringIntoViewOnFocusChange}"
AutomationProperties.AccessibilityView="Raw">
<ItemsPresenter
Footer="{TemplateBinding Footer}"
FooterTemplate="{TemplateBinding FooterTemplate}"
FooterTransitions="{TemplateBinding FooterTransitions}"
Padding="{TemplateBinding Padding}" />
</ScrollViewer>
</Grid>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
回答2:
Based on the first answer (which works perfectly if horizontal scrolling is not required), here is a work around to achieve horizol scroll + sticky header (The FixedHeaderListViewStyle is same as above):
<ScrollViewer
HorizontalScrollBarVisibility="Auto"
HorizontalScrollMode="Auto"
VerticalScrollBarVisibility="Disabled"
VerticalScrollMode="Disabled">
<ListView Style="{StaticResource FixedHeaderListViewStyle}">
<!-- your list here -->
</ListView>
</ScrollViewer>
回答3:
The style provided by Andrii is definitely the answer, but you don't need to include all that other stuff. When overriding an intrinsic style, all you need to do is provide setters for the stuff you're actually overriding. The minimum code you need is:
<Style x:Key="FixedHeaderListViewStyle"
TargetType="ListView">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ListView">
<Border Background="{TemplateBinding Background}"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition/>
</Grid.RowDefinitions>
<ContentControl Content="{TemplateBinding Header}"
ContentTemplate="{TemplateBinding HeaderTemplate}"
ContentTransitions="{TemplateBinding HeaderTransitions}"/>
<ScrollViewer AutomationProperties.AccessibilityView="Raw"
BringIntoViewOnFocusChange="{TemplateBinding ScrollViewer.BringIntoViewOnFocusChange}"
Grid.Row="1"
HorizontalScrollBarVisibility="{TemplateBinding ScrollViewer.HorizontalScrollBarVisibility}"
HorizontalScrollMode="{TemplateBinding ScrollViewer.HorizontalScrollMode}"
IsDeferredScrollingEnabled="{TemplateBinding ScrollViewer.IsDeferredScrollingEnabled}"
IsHorizontalRailEnabled="{TemplateBinding ScrollViewer.IsHorizontalRailEnabled}"
IsHorizontalScrollChainingEnabled="{TemplateBinding ScrollViewer.IsHorizontalScrollChainingEnabled}"
IsVerticalRailEnabled="{TemplateBinding ScrollViewer.IsVerticalRailEnabled}"
IsVerticalScrollChainingEnabled="{TemplateBinding ScrollViewer.IsVerticalScrollChainingEnabled}"
x:Name="ScrollViewer"
TabNavigation="{TemplateBinding TabNavigation}"
VerticalScrollBarVisibility="{TemplateBinding ScrollViewer.VerticalScrollBarVisibility}"
VerticalScrollMode="{TemplateBinding ScrollViewer.VerticalScrollMode}"
ZoomMode="{TemplateBinding ScrollViewer.ZoomMode}">
<ItemsPresenter Footer="{TemplateBinding Footer}"
FooterTemplate="{TemplateBinding FooterTemplate}"
FooterTransitions="{TemplateBinding FooterTransitions}"
Padding="{TemplateBinding Padding}"/>
</ScrollViewer>
</Grid>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
来源：https://stackoverflow.com/questions/38513410/keep-listview-headertemplate-visible-static-sticky-in-uwp