XmlDocument xmlDoc = new XMLDocument();
XMLDoc.Load(URL);
XmlNodeList xnl = XMLDoc.SelectSingleNode("Products").ChildNodes;
string v = "";
foreach (XMLNode xn in xnl)
{
if (xn.Attributes["id"].Value ==“1000“)
{
//相應的操作 刪除節點
xn.ParentNode.RemoveChild(xn);
v = xn.Name;
}
}

xmlDoc.Save(XMLPath);