That sample has code which converts HTML to and from a XAML Flow Document. But this doesn’t make things easier until you realize that there is a way to convert RTF to XAML and XAML to RTF easily. The key is to use System.Windows.Controls.RichTextBox which can load RTF/XAML from a stream and save it as XAML/RTF.
RTF to XAML
C#
private static string ConvertRtfToXaml(string rtfText) { var richTextBox = new RichTextBox(); if (string.IsNullOrEmpty(rtfText)) return ""; var textRange = new TextRange(richTextBox.Document.ContentStart, richTextBox.Document.ContentEnd); using (var rtfMemoryStream = new MemoryStream()) { using (var rtfStreamWriter = new StreamWriter(rtfMemoryStream)) { rtfStreamWriter.Write(rtfText); rtfStreamWriter.Flush(); rtfMemoryStream.Seek(0, SeekOrigin.Begin); textRange.Load(rtfMemoryStream, DataFormats.Rtf); } } using (var rtfMemoryStream = new MemoryStream()) { textRange = new TextRange(richTextBox.Document.ContentStart, richTextBox.Document.ContentEnd); textRange.Save(rtfMemoryStream, DataFormats.Xaml); rtfMemoryStream.Seek(0, SeekOrigin.Begin); using (var rtfStreamReader = new StreamReader(rtfMemoryStream)) { return rtfStreamReader.ReadToEnd(); } } }
C#
private static string ConvertXamlToRtf(string xamlText) { var richTextBox = new RichTextBox(); if (string.IsNullOrEmpty(xamlText)) return ""; var textRange = new TextRange(richTextBox.Document.ContentStart, richTextBox.Document.ContentEnd); using (var xamlMemoryStream = new MemoryStream()) { using (var xamlStreamWriter = new StreamWriter(xamlMemoryStream)) { xamlStreamWriter.Write(xamlText); xamlStreamWriter.Flush(); xamlMemoryStream.Seek(0, SeekOrigin.Begin); textRange.Load(xamlMemoryStream, DataFormats.Xaml); } } using (var rtfMemoryStream = new MemoryStream()) { textRange = new TextRange(richTextBox.Document.ContentStart, richTextBox.Document.ContentEnd); textRange.Save(rtfMemoryStream, DataFormats.Rtf); rtfMemoryStream.Seek(0, SeekOrigin.Begin); using (var rtfStreamReader = new StreamReader(rtfMemoryStream)) { return rtfStreamReader.ReadToEnd(); } } }
C#
public interface IMarkupConverter { string ConvertXamlToHtml(string xamlText); string ConvertHtmlToXaml(string htmlText); string ConvertRtfToHtml(string rtfText); string ConvertHtmlToRtf(string htmlText); } public class MarkupConverter : IMarkupConverter { public string ConvertXamlToHtml(string xamlText) { return HtmlFromXamlConverter.ConvertXamlToHtml(xamlText, false); } public string ConvertHtmlToXaml(string htmlText) { return HtmlToXamlConverter.ConvertHtmlToXaml(htmlText, true); } public string ConvertRtfToHtml(string rtfText) { return RtfToHtmlConverter.ConvertRtfToHtml(rtfText); } public string ConvertHtmlToRtf(string htmlText) { return HtmlToRtfConverter.ConvertHtmlToRtf(htmlText); } }
C#
MarkupConverter markupConverter = new MarkupConverter(); private string ConvertRtfToHtml(string rtfText) { var thread = new Thread(ConvertRtfInSTAThread); var threadData = new ConvertRtfThreadData { RtfText = rtfText }; thread.SetApartmentState(ApartmentState.STA); thread.Start(threadData); thread.Join(); return threadData.HtmlText; } private void ConvertRtfInSTAThread(object rtf) { var threadData = rtf as ConvertRtfThreadData; threadData.HtmlText = markupConverter.ConvertRtfToHtml(threadData.RtfText); } private class ConvertRtfThreadData { public string RtfText { get; set; } public string HtmlText { get; set; } }
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Create by Matthew Manela !
