HOW TO:以程式設計方式變更 TextWrapping 屬性
範例
下列程式碼範例會顯示如何以程式設計的方式變更 TextWrapping 屬性的值。
在 XAML 中,有三個 Button 項目放在 StackPanel 項目內。Button 的每一個 Click 事件都會對應程式碼中的事件處理常式。 事件處理常式會使用與 TextWrapping 值相同的名稱,該值會在按下按鈕時套用至 txt2。 此外,txt1 (未在 XAML 中顯示的 TextBlock) 中的文字會更新,以反映屬性中的變更。
<StackPanel Orientation="Horizontal" Margin="0,0,0,20">
<Button Name="btn1" Background="Silver" Width="100" Click="Wrap">Wrap</Button>
<Button Name="btn2" Background="Silver" Width="100" Click="NoWrap">NoWrap</Button>
<Button Name="btn4" Background="Silver" Width="100" Click="WrapWithOverflow">WrapWithOverflow</Button>
</StackPanel>
<TextBlock Name="txt2" TextWrapping="Wrap" Margin="0,0,0,20" Foreground="Black">
Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Lorem ipsum dolor sit amet,
consectetuer adipiscing elit.Lorem ipsum dolor sit aet, consectetuer adipiscing elit.
Lorem ipsum dolor sit amet, consectetuer adipiscing elit.
</TextBlock>
Private Sub Wrap(ByVal sender As Object, ByVal e As System.Windows.RoutedEventArgs)
txt2.TextWrapping = System.Windows.TextWrapping.Wrap
txt1.Text = "The TextWrap property is currently set to Wrap."
End Sub
Private Sub NoWrap(ByVal sender As Object, ByVal e As System.Windows.RoutedEventArgs)
txt2.TextWrapping = System.Windows.TextWrapping.NoWrap
txt1.Text = "The TextWrap property is currently set to NoWrap."
End Sub
Private Sub WrapWithOverflow(ByVal sender As Object, ByVal e As System.Windows.RoutedEventArgs)
txt2.TextWrapping = System.Windows.TextWrapping.WrapWithOverflow
txt1.Text = "The TextWrap property is currently set to WrapWithOverflow."
End Sub
private void Wrap(object sender, RoutedEventArgs e)
{
txt2.TextWrapping = System.Windows.TextWrapping.Wrap;
txt1.Text = "The TextWrap property is currently set to Wrap.";
}
private void NoWrap(object sender, RoutedEventArgs e)
{
txt2.TextWrapping = System.Windows.TextWrapping.NoWrap;
txt1.Text = "The TextWrap property is currently set to NoWrap.";
}
private void WrapWithOverflow(object sender, RoutedEventArgs e)
{
txt2.TextWrapping = System.Windows.TextWrapping.WrapWithOverflow;
txt1.Text = "The TextWrap property is currently set to WrapWithOverflow.";
}