How to remove all comment tags from XML string

[Andrus]

I need to remove all comments ( between <!-- and --tags) from XML string.

I tried the following code but comments are still present.
Or is it better to open xml string with a StreamReader, read all the text
inside and remove all the "<!--" and "-->" substrings?

How to remove comments ?
string RemoveComments(string sDoc) {
XmlDocument xDoc = new XmlDocument();
xDoc.PreserveWhitespace = false;
xDoc.LoadXml(sDoc);
XPathNavigator nav = xDoc.CreateNavigator();
while (nav.MoveToNext(XPathNodeType.Comment)) {
nav.DeleteSelf();
}

StringWriter sw = new StringWriter();
XmlTextWriter xtw = new XmlTextWriter(sw);
xtw.IndentChar = ' ';
xtw.Indentation = 2;
xtw.Formatting = Formatting.Indented;

xDoc.WriteContentTo(xtw);
xtw.Close();
sw.Close();
return sw.ToString();
}
Andrus.

[=?Utf-8?B?UGV0ZXIgQnJvbWJlcmcgW0MjIE1WUF0=?=]

Try something like this:

Use an XPath expression to get all the comment nodes, then iterate through
to remove them:

XmlNodeList list = xmlDoc.SelectNodes("//comment()");

foreach(XmlNode node in list)
{
node.ParentNode.RemoveChild(node);
}

-- Peter
Site: http://www.eggheadcafe.com
UnBlog: http://petesbloggerama.blogspot.com
Short urls & more: http://ittyurl.net


"Andrus" wrote:

I need to remove all comments ( between <!-- and --tags) from XML string.

I tried the following code but comments are still present.
Or is it better to open xml string with a StreamReader, read all the text
inside and remove all the "<!--" and "-->" substrings?

How to remove comments ?
string RemoveComments(string sDoc) {
XmlDocument xDoc = new XmlDocument();
xDoc.PreserveWhitespace = false;
xDoc.LoadXml(sDoc);
XPathNavigator nav = xDoc.CreateNavigator();
while (nav.MoveToNext(XPathNodeType.Comment)) {
nav.DeleteSelf();
}

StringWriter sw = new StringWriter();
XmlTextWriter xtw = new XmlTextWriter(sw);
xtw.IndentChar = ' ';
xtw.Indentation = 2;
xtw.Formatting = Formatting.Indented;

xDoc.WriteContentTo(xtw);
xtw.Close();
sw.Close();
return sw.ToString();
}
Andrus.