轉換XAML來的FlowDocument在RichTextBox中的WPF

Question

我有一些HTML，這我使用

string t = HtmlToXamlConverter.ConvertHtmlToXaml(mail.HtmlDataString,true); 

現在由微軟提供的庫轉換爲XAML顯示，從How to insert XAML into RichTextBox?我現在用的是以下幾點：

private static FlowDocument SetRTF(string xamlString) 
{ 
    StringReader stringReader = new StringReader(xamlString); 
    System.Xml.XmlReader xmlReader = System.Xml.XmlReader.Create(stringReader); 
    Section sec = XamlReader.Load(xmlReader) as Section; 
    FlowDocument doc = new FlowDocument(); 
    while (sec.Blocks.Count > 0) 
     doc.Blocks.Add(sec.Blocks.FirstBlock); 
    return doc; 
} 

然而，這不斷崩潰= /有沒有人有任何線索如何在RichTextBox中顯示XAML文本？

編輯：HTML的例子中，我嘗試轉換

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Answer 1

我認爲它崩潰的Add()，因爲要添加FrameworkContentElement已經有一個邏輯父。您必須先從其父項中刪除Block，然後才能將其添加到其他集合中。試試這個：

private static FlowDocument SetRTF(string xamlString) 
{ 
    StringReader stringReader = new StringReader(xamlString); 
    System.Xml.XmlReader xmlReader = System.Xml.XmlReader.Create(stringReader); 
    Section sec = XamlReader.Load(xmlReader) as Section; 
    FlowDocument doc = new FlowDocument(); 
    while (sec.Blocks.Count > 0) 
    { 
     var block = sec.Blocks.FirstBlock; 
     sec.Blocks.Remove(block); 
     doc.Blocks.Add(block); 
    } 
    return doc; 
} 

Answer 2

private static FlowDocument SetRTF(string xamlString) 
    { 
     StringReader stringReader = new StringReader(xamlString); 
     System.Xml.XmlReader xmlReader = System.Xml.XmlReader.Create(stringReader); 
     FlowDocument doc = (FlowDocument)XamlReader.Load(xmlReader); 
     return doc; 
    } 

Answer 3

或短

private FlowDocument StringToFlowDocument(string s) 
    { 
     var xamlString = string.Format("<FlowDocument xmlns=\"http://schemas.microsoft.com/winfx/2006/xaml/presentation\" xmlns:x=\"http://schemas.microsoft.com/winfx/2006/xaml\"><Paragraph>{0}</Paragraph></FlowDocument>", s); 
     return XamlReader.Parse(xamlString) as FlowDocument; 
    }