简单的问题。如何在WPF中禁用DocumentViewer的文本选择?这是查看器显示XPS文档然后可以通过鼠标突出显示文本的功能。突出显示的文本也可以复制,但我已经禁用了它。我只是不知道如何禁用突出显示。
谢谢!
答案 0 :(得分:2)
我们通过覆盖DocumentViewer控件中嵌入的ScrollViewer的ControlTemplate来解决这个问题。在“Window.Resources”中插入下面的样式:
<Style TargetType="{x:Type ScrollViewer}" x:Key="CustomScrollPresenter">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ScrollViewer}">
<Grid Background="{TemplateBinding Panel.Background}">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<Rectangle Grid.Column="1" Grid.Row="1" Fill="{DynamicResource {x:Static SystemColors.ControlBrushKey}}" />
<ScrollContentPresenter
PreviewMouseLeftButtonDown="ScrollContentPresenter_PreviewMouseLeftButtonDown"
Grid.Column="0"
Grid.Row="0"
Margin="{TemplateBinding Control.Padding}"
Content="{TemplateBinding ContentControl.Content}"
ContentTemplate="{TemplateBinding ContentControl.ContentTemplate}"
CanContentScroll="{TemplateBinding ScrollViewer.CanContentScroll}" />
<ScrollBar
x:Name="PART_VerticalScrollBar"
Grid.Column="1"
Grid.Row="0"
Minimum="0"
Maximum="{TemplateBinding ScrollViewer.ScrollableHeight}"
ViewportSize="{TemplateBinding ScrollViewer.ViewportHeight}"
Value="{Binding Path=VerticalOffset, Mode=OneWay, RelativeSource={RelativeSource Mode=TemplatedParent}}"
Visibility="{TemplateBinding ScrollViewer.ComputedVerticalScrollBarVisibility}"
Cursor="Arrow" AutomationProperties.AutomationId="VerticalScrollBar" />
<ScrollBar
x:Name="PART_HorizontalScrollBar"
Orientation="Horizontal" Grid.Column="0" Grid.Row="1" Minimum="0"
Maximum="{TemplateBinding ScrollViewer.ScrollableWidth}" ViewportSize="{TemplateBinding ScrollViewer.ViewportWidth}" Value="{Binding Path=HorizontalOffset, Mode=OneWay, RelativeSource={RelativeSource Mode=TemplatedParent}}" Visibility="{TemplateBinding ScrollViewer.ComputedHorizontalScrollBarVisibility}" Cursor="Arrow" AutomationProperties.AutomationId="HorizontalScrollBar" />
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
然后在DocumentViewer的ControlTemplate中用它覆盖ScrollViewer的样式:
<Style
x:Key="MyDVStyleExtend"
BasedOn="{StaticResource {x:Type DocumentViewer}}"
TargetType="{x:Type DocumentViewer}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="DocumentViewer">
<Border BorderThickness="2,2,2,2"
BorderBrush="SlateBlue" Focusable="False">
<Grid Background="{StaticResource GridBackground}"
KeyboardNavigation.TabNavigation="Local">
<Grid.ColumnDefinitions>
<ColumnDefinition Width ="*"/>
</Grid.ColumnDefinitions>
<ScrollViewer Style="{StaticResource CustomScrollPresenter}" Grid.Column ="0"
CanContentScroll="True"
HorizontalScrollBarVisibility="Auto"
x:Name="PART_ContentHost"
IsTabStop="True"/>
</Grid>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
然后为CustomScrollPresenter样式中声明的“PreviewMouseLeftButtonDown =”ScrollContentPresenter_PreviewMouseLeftButtonDown“”属性创建一个函数。
private void ScrollContentPresenter_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
e.Handled = true;
}
答案 1 :(得分:1)
另一种方法是添加例如dockpanel:
<DockPanel Name="pnlTouchTaker"
VerticalAlignment="Bottom" HorizontalAlignment="Left"
Background="Transparent">
</DockPanel>
位于文档查看器“上方”并将其宽度和高度设置为例如滚动查看器内容的实际宽度和高度。页面加载事件。
如果使用缩放选项并且水平工具栏变为可见,则可能必须添加其他逻辑。
答案 2 :(得分:0)
您可以使用IsFocusable = false。但搜索框也将被禁用...
答案 3 :(得分:0)
在xaml.cs部分中实现以下代码(DocumentViewerInstance x:xaml中DocumentViewer的名称。)
DocumentViewerInstance.GetType().GetProperty("IsSelectionEnabled", BindingFlags.Instance | BindingFlags.NonPublic).SetValue(DocumentViewerInstance, false, null);
您可以使用IsFocusable=false
或IsHitTestVisible = false
或处理任何预览事件(例如,在接受的答案中)以禁用选择,但是超链接将不起作用!如果将IsSelectionEnabled设置为false,则将禁用选择,但超链接也将起作用。 (警告!设置为false后,可以将IsSelectionEnabled更改为真实值,因此应经常检查该值。)