c# - How to remove an XmlNode from XmlNodeList

Question

I need to remove an XmlNode based on a condition. How to do it?

foreach (XmlNode drawNode in nodeList)
{
       //Based on a condition
       drawNode.RemoveAll();  //need to remove the entire node                      

}

Answer 1

This should do the trick for you:

for (int i = nodeList.Count - 1; i >= 0; i--)
{
    nodeList[i].ParentNode.RemoveChild(nodeList[i]);
}

If you loop using a regular for-loop, and loop over it "backwards" you can remove items as you go.

Update: here is a full example, including loading an xml file, locating nodes, deleting them and saving the file:

XmlDocument doc = new XmlDocument();
doc.Load(fileName);
XmlNodeList nodes = doc.SelectNodes("some-xpath-query");
for (int i = nodes.Count - 1; i >= 0; i--)
{
    nodes[i].ParentNode.RemoveChild(nodes[i]);
}
doc.Save(fileName);