HOW TO：以程式設計方式變更 TextWrapping 屬性

更新：2007 年 11 月

範例

下列程式碼範例顯示如何使用 Microsoft Visual Basic .NET，以程式設計的方式變更 TextWrapping 屬性的值。

系統會在可延伸標記語言 (XAML) 的 StackPanel 項目內放置四個 Button。每個 Button 的 Click 事件都會與以下 Microsoft Visual Basic .NET 程式碼中定義的子程序相對應。在叫用 (Invoke) 與每個事件相關聯的 TextWrapping 值之後，系統會更新 Nametxt2 所識別的 TextBlock，以反映屬性變更。

<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>

與上面定義之 Button 按一下相關聯的事件，是在 Microsoft Visual Basic .NET 子程序中進行處理。每個 Click 會將 TextWrapping 屬性的值變更為在程序中指定的值，並更新項目 txt1 以反映屬性變更。

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.";
}

請參閱

參考

TextWrapping

TextWrapping