We store some texts in rtf-format in our database. Now I have to convert them to html.
This is an expample of the rtf-text:
{\rtf1\ansi\ansicpg1252\deff0\deflang2055{\fonttbl{\f0\fnil\fcharset0 Arial;}{\f1\fnil\fcharset0 MS Sans Serif;}}
\viewkind4\uc1\pard\fs20 Dampf- und Gassperre aus Fl\'fcssigkunststoff f\'fcr D\'e4mmung von K\'e4lteleitungen. Flexible, schwerentflammbare und dampfbremsende Beschichtung auf Wasserbasis. Auch geeignet zum Schutz von l\'f6sungsmittelempfindlichen Isolierstoffenbei K\'e4lte-Isolierungen im Innen- und Aussenbereich.\f1\fs17\par
}
To convert it to html I use the following code:
Telerik.Windows.Documents.Flow.FormatProviders.Rtf.RtfFormatProvider rtfProv = new();
Telerik.Windows.Documents.Flow.Model.RadFlowDocument rtfDoc = rtfProv.Import(rtfInput);
Telerik.Windows.Documents.Flow.FormatProviders.Html.HtmlExportSettings expSettings = new()
{
DocumentExportLevel = Telerik.Windows.Documents.Flow.FormatProviders.Html.DocumentExportLevel.Fragment,
StylesExportMode = Telerik.Windows.Documents.Flow.FormatProviders.Html.StylesExportMode.None,
};
Telerik.Windows.Documents.Flow.FormatProviders.Html.HtmlFormatProvider htmlProv = new()
{
ExportSettings = expSettings
};
string ret = htmlProv.Export(rtfDoc);
return new HtmlString(ret);<body><p style="margin-bottom: 0px;"><span style="font-size: 13.333333333333334px;">Dampf- und Gassperre aus Flüssigkunststoff für Dämmung von Kälteleitungen. Flexible, schwerentflammbare und dampfbremsende Beschichtung auf Wasserbasis. Auch geeignet zum Schutz von lösungsmittelempfindlichen Isolierstoffenbei Kälte-Isolierungen im Innen- und Aussenbereich.</span></p></body>1 Answer, 1 is accepted
Hi,
The style attribute reflects the properties of this particular span that have been imported from the rtf and stored in the RadFlowDocument object. You can edit the font size of this run before exporting the document to html and this will be reflected in the html style tag:
// Getting the first run of the file. The run will then be exported as span in the html.
Run firstRun = rtfDoc.EnumerateChildrenOfType<Run>().First();
// We can delete the value like this.
firstRun.Properties.FontSize.ClearValue();
// Or replace it like this.
firstRun.FontSize = 20;I hope I understood your question correctly. Please, let me know if any further clarification is needed.
Regards,
Anna
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if you use HTMLAgility you can loop through all span tags (or others you may want) and look for the style attribute for each and replace it with what you want (or remove it)
here is how you would do that:
HtmlAgilityPack.HtmlDocument htmlBodyText = new HtmlAgilityPack.HtmlDocument(); htmlBodyText.LoadHtml(BodyText); if (BodyText.ToLower().Contains("<span")) { foreach (HtmlAgilityPack.HtmlNode dNode in htmlBodyText.DocumentNode.SelectNodes("//span")) { string nodeStyle = dNode.GetAttributeValue("style", ""); //only do this if the span has the style element you are looking for if (nodeStyle.ToLower().Contains("font-size")) { string replacementStyle = ""; foreach (string styleItem in nodeStyle.Split(";")) { if (styleItem.ToLower().StartsWith("font-size")) { // comment out the below if you want to skip it) replacementStyle += "font-size: 14px;"; } else { //put other styles back replacementStyle += styleItem + ";"; } } dNode.SetAttributeValue("style", replacementStyle); } } BodyText = htmlBodyText.DocumentNode.InnerHtml; }