我正在尝试使textblock中所有可URI单击的单词。这是我采用的方法:
private static void onTextChanged(DependencyObject dependObj, DependencyPropertyChangedEventArgs e)
{
WrapPanel wrapPanel = ((HyperlinkTextBlock)dependObj).LayoutRoot;
wrapPanel.Children.Clear();
// TODO: use a real wordbreaker?
// adding an extra space to the end of the last word. Cry.
IList<string> words = ((string)e.NewValue).Split(' ').Select(word => word + " ").ToList();
foreach (string word in words)
{
Uri uri;
if (Uri.TryCreate(word, UriKind.Absolute, out uri))
{
// TODO the style is off - the text is too big
wrapPanel.Children.Add(new HyperlinkButton()
{
Content = word,
NavigateUri = uri,
TargetName = "_blank",
Margin = new Thickness(0),
Padding = new Thickness(0),
});
}
else
{
wrapPanel.Children.Add(new TextBlock() { Text = word, TextWrapping = TextWrapping.Wrap });
}
}
}
(我将全力以赴以更面向XAML /声明式的方式执行此操作,但是我不确定如何去执行该操作。)
除
HyperlinkButton
看起来很有趣之外,这可以很好地工作(除了使用真正的断字器会更好)。它太大了,文本不会自动换行。它似乎也有一些偏移,我已尝试通过将Margin
和Padding
设置为0来解决,但尚未解决问题。还有其他想法吗?确实,我想要
HyperlinkText
而不是HyperlinkButton
,但我认为Windows Phone 7的Silverlight 3不能提供这种功能。 最佳答案
这是我提出的解决方案,方法是提取超链接按钮的样式,然后对我关心的区域进行修改(如您提到的那样,是奇数个缩进)。这样,除了要更改的内容外,其他行为是完全相同的。
当创建超链接按钮时,还设置样式属性,如下所示:
var button = new HyperlinkButton
{
...
Style = (Style) Resources["HyperlinkButtonWithNoIndent"]
};
然后在页面中,将以下样式添加到资源中:
<Style x:Key="HyperlinkButtonWithNoIndent" TargetType="HyperlinkButton">
<Setter Property="Foreground" Value="{StaticResource PhoneForegroundBrush}"/>
<Setter Property="Background" Value="Transparent"/>
<Setter Property="FontSize" Value="{StaticResource PhoneFontSizeMedium}"/>
<Setter Property="Padding" Value="0"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="HyperlinkButton">
<Border Background="Transparent">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal"/>
<VisualState x:Name="MouseOver"/>
<VisualState x:Name="Pressed">
<Storyboard>
<DoubleAnimation Duration="0" To="0.5" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="TextElement"/>
</Storyboard>
</VisualState>
<VisualState x:Name="Disabled">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="TextElement">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PhoneDisabledBrush}"/>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Border Background="{TemplateBinding Background}" Padding="{TemplateBinding Padding}">
<TextBlock x:Name="TextElement" Text="{TemplateBinding Content}" TextDecorations="Underline" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
</Border>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>