Replace text in XamlPackage

Question

I have some text in a RichTextBox. This text includes tags eg: [@TagName!]. I want to replace these tags with some data from a database without losing formatting (fonts, colors, image, etc). I've created a method:

 void ReplaceTagsWithData(FlowDocument doc)     {         FileStream fs = new FileStream("tmp.xml", FileMode.Create);         TextRange trTextRange =              new TextRange(doc.ContentStart, doc.ContentEnd);          trTextRange.Save(fs, DataFormats.Xaml);         fs.Dispose();         fs.Close();          StreamReader sr = new StreamReader("tmp.xml");          string rtbContent = sr.ReadToEnd();          MatchCollection mColl =              Regex.Matches(rtbContent,                            string.Format(@"\{0}+[a-zA-Z]+{1}",                            prefix,                            postfix));          foreach (Match m in mColl)         {             string colname =                  m.Value.Substring(prefix.Length,                     (int)(m.Value.Length - (prefix.Length + postfix.Length)));              rtbContent = rtbContent.Replace(m.Value.ToString(),                                              dt.Rows[0][colname].ToString());         }          rtbEdit.Document =              new FlowDocument(                 (Section)XamlReader.Load(                     XmlReader.Create(new StringReader(rtbContent))));         sr.Dispose();         sr.Close();     } 

It's quite good but it removes images from content. I know that I should use XamlPackage instead of Xaml but then I can't get it as a plain text. Is there any other solution for this?

Thanks for answers. ;)

[EDIT: 13-02-2012 02:14(am)]

My working solution:

    void ReplaceTagsWithData(RichTextBox rtb) {     FlowDocument doc = rtb.Document;      FileStream fs = new FileStream("tmp", FileMode.Create);     TextRange trTextRange = new TextRange(doc.ContentStart, doc.ContentEnd);     trTextRange.Save(fs, DataFormats.Rtf);     fs.Dispose();     fs.Close();      StreamReader sr = new StreamReader("tmp");     string rtbContent = sr.ReadToEnd();     sr.Dispose();     sr.Close();      MatchCollection mColl =          Regex.Matches(rtbContent,                        string.Format(@"\{0}+[a-zA-Z]+{1}",                        prefix,                        postfix));      foreach (Match m in mColl)     {         string colname =              m.Value.Substring(prefix.Length,                  (int)(m.Value.Length - (prefix.Length + postfix.Length)));          rtbContent = rtbContent.Replace(m.Value.ToString(),                                          dt.Rows[0][colname].ToString());     }     MemoryStream stream =          new MemoryStream(ASCIIEncoding.Default.GetBytes(rtbContent));     rtb.SelectAll();     rtb.Selection.Load(stream, DataFormats.Rtf);  } 

Maybe it's not the best but it's working correctly.

It was solved. But I can't post solution because it is on company server which I can't access anymore.

Answer 1

You can use the Razor Engine to do whatever you want in the templating subject. You can download from nuget (http://www.nuget.org/packages/RazorEngine) and without any setup configuration you can use the Razor syntax to do this. For example your template can be this:

<Window x:Class="<class>"         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"         Title="@Model.Title"         Icon="@Model.Icon">   <Grid>       </Grid> </Window> 

Note: the @Model.Title and @Model.Icon thats come from Razor

Actually i use RazorEngine to all my templating task: Email, Report generation on the fly (rdlc), etc...