WPF Richtextbox以純文本格式打開RTF文件

Question

我正在嘗試打開一個文件，以便在Button單擊時以RichTextbox內的純文本形式查看內容。 似乎沒有什么工作正常。

private void loadFile_Click(object sender, RoutedEventArgs e)
{
    OpenFileDialog openFile1 = new OpenFileDialog();
    openFile1.FileName = "Document"; 
    openFile1.DefaultExt = "*.*";
    openFile1.Filter = "All Files|*.*|Rich Text Format|*.rtf|Word Document|*.docx|Word 97-2003 Document|*.doc";

    if (openFile1.ShowDialog() == System.Windows.Forms.DialogResult.OK && openFile1.FileName.Length > 0)
    {
        //richTextbox1.Document.ContentStart = File.ReadAllText(openFile1.FileName);
    }
}

我使用WPF並且LoadFile方法不起作用。 我希望能夠從OpenFileDialog選擇一個文件，並將其作為純文本加載到RichTextbox 。 沒有看到來自文件格式的添加代碼。

我喜歡的行為類似於打開.rtf，選擇所有文本，並將結果粘貼到RichTextbox 。 如何點擊按鈕才能做到這一點？

Answer 1

使用TextRange和FileStream

if (openFile1.ShowDialog() == System.Windows.Forms.DialogResult.OK )
{             
  TextRange range;
  System.IO.FileStream fStream;

  if (System.IO.File.Exists(openFile1.FileName))
  {
      range = new TextRange(RichTextBox1.Document.ContentStart, RichTextBox1.Document.ContentEnd);
      fStream = new System.IO.FileStream(openFile1.FileName, System.IO.FileMode.OpenOrCreate);
      range.Load(fStream, System.Windows.DataFormats.Rtf );

      fStream.Close();
  }
}

Answer 2

您是否嘗試過使用richTextbox1.AppendText(File.ReadAllText(openFile1.FileName)) ？

Answer 3

與@AbZy類似，您需要先清除格式：

    private void loadFile_Click(object sender, RoutedEventArgs routedEventArgs)
    {
        OpenFileDialog openFile1 = new OpenFileDialog();
        openFile1.FileName = "Document";
        openFile1.DefaultExt = "*.*";
        openFile1.Filter = "All Files|*.*|Rich Text Format|*.rtf|Word Document|*.docx|Word 97-2003 Document|*.doc";

        if (openFile1.ShowDialog() == true)
        {
            var range = new TextRange(rtf.Document.ContentStart, rtf.Document.ContentEnd);

            using (var fStream = new FileStream(openFile1.FileName, FileMode.OpenOrCreate))
            {
                // load as RTF, text is formatted
                range.Load(fStream, DataFormats.Rtf);
                fStream.Close();
            }
            // clear the formatting, turning into plain text
            range.ClearAllProperties();
        }
    }