Como: Change the TextWrapping Property Programmatically
Exemplo
O exemplo de código a seguir mostra como alterar o valor de TextWrapping propriedade programaticamente.
Três Button elementos são colocados dentro de um StackPanel elemento em XAML. Cada Click evento para um Button corresponde a um manipulador de eventos no código. Os manipuladores de eventos usam o mesmo nome que o TextWrapping valor que elas se aplicarão txt2 quando o botão é clicado. Além disso, o texto na txt1 (um TextBlock não mostra a XAML) é atualizado para refletir a alteração na propriedade.
<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.";
}