有没有办法在WPF得到格式化，因为它显示在文本框时TextWrapping =自动换行的文字？

Is there a way in WPF to get the text formatted as it display on the textbox when TextWrapping="Wrap"?

<TextBox   Width="200"
           TextWrapping="Wrap"                 
           VerticalScrollBarVisibility="Auto"
           HorizontalScrollBarVisibility="Auto"  />

我试图用的TextFormatter类，但它ONTY让我绘制文本到绘图背景下我只需要和换行符包含文本。

I've tried to use TextFormatter class, but it onty allow me to draw the text to a drawing context where i only need the text with line break included.

推荐答案

下面是如何让具有明显的换行的完整文本。

Here's how to get the complete text with apparent line breaks.

请注意：

包括以下从高级文本格式为例在您的项目： CustomTextSource FontRendering GenericTextProperties Include the following classes from Advanced Text Formatting Example in your project: CustomTextSource FontRendering GenericTextProperties

请参阅：高级文本格式和高级文本格式为例

样品code XAML：

Sample Code XAML:

<Window x:Class="TextFormatterForWrappedText.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <TextBox Width="200"
            x:Name="InputTextBox"
            TextWrapping="Wrap"
            VerticalScrollBarVisibility="Auto"
            HorizontalScrollBarVisibility="Auto" Margin="23,12,280,241" />
        <TextBox x:Name="FormattedDisplayTextBox" Height="172"
                 HorizontalAlignment="Left" VerticalAlignment="Top"
                 Margin="23,105,0,0" Width="438" AcceptsReturn="True"
                 TextWrapping="Wrap" />
        <Button HorizontalAlignment="Left" VerticalAlignment="Top"
                Margin="257,12,0,0" Height="23" Content="Copy"
                Name="CopyButton" Width="129" Click="CopyButton_Click" />
    </Grid>
</Window>

codebehind：

Codebehind:

private void CopyButton_Click(object sender, RoutedEventArgs e)
{
    List<string> stringList = GetTextAsStringList();
    StringBuilder sb = new StringBuilder();
    foreach (string s in stringList)
    {
        sb.Append(s);
        sb.Append("\r\n");
    }

    Clipboard.SetData(System.Windows.DataFormats.Text, sb.ToString());

    FormattedDisplayTextBox.Clear();
    FormattedDisplayTextBox.Text = sb.ToString();
}

private List<string> GetTextAsStringList()
{
    List<string> stringList = new List<string>();
    int pos = 0;
    string inputText = InputTextBox.Text;

    CustomTextSource store = new CustomTextSource();
    store.Text = inputText;
    store.FontRendering = new FontRendering(InputTextBox.FontSize,
                                            InputTextBox.TextAlignment,
                                            null,
                                            InputTextBox.Foreground,
                                            new Typeface(InputTextBox.FontFamily,
                                                InputTextBox.FontStyle,
                                                InputTextBox.FontWeight,
                                                InputTextBox.FontStretch));

    using (TextFormatter formatter = TextFormatter.Create())
    {
        while (pos < store.Text.Length)
        {
            using (TextLine line = formatter.FormatLine(store,
                                    pos,
                                    InputTextBox.ViewportWidth,
                                    new GenericTextParagraphProperties(
                                        store.FontRendering),
                                    null))
            {
                stringList.Add(inputText.Substring(pos, line.Length - 1));
                pos += line.Length;
            }
        }
    }

    return stringList;
}