WPF How to get plain text from RichTextBox

We can not find any function to get plain text from RichTextBox. But we can use TextRange to get plain text.

We create a RichTextBox in UI

<RichTextBox Name="RichTextBox">
  <FlowDocument>
    <Paragraph>
      <Run>Paragraph 1</Run>
    </Paragraph>
    <Paragraph>
      <Run>Paragraph 2</Run>
    </Paragraph>
    <Paragraph>
      <Run>Paragraph 3</Run>
    </Paragraph>
  </FlowDocument>
</RichTextBox>

And we can use TextRange to get plain text from RichTextBox

 string text = new TextRange(RichTextBox.Document.ContentStart, RichTextBox.Document.ContentEnd).Text

See: How to: Extract the Text Content from a RichTextBox

原文链接: http://blog.lindexi.com/post/WPF-How-to-get-plain-text-from-RichTextBox

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