通过XmlReaderSettings类，你可以指定一系列由XmlReader对象支持的功能，为此，只需将XmlReaderSettings作为参数传入XmlReader的Create()方法中即可。如下所示：
<script runat="server">
void Page_Load(object sender, EventArgs e)
{
string xmlFilePath = Server.Mappath("~/Employees.xml");
//Create the XmlReaderSettings object and set appropriate properties
XmlReaderSettings settings = new XmlReaderSettings();
settings.IgnoreComments = true;
settings.IgnoreWhitespace = true;
try
{
//Get reference to the XmlReader object
using (XmlReader reader = XmlReader.Create(xmlFilePath, settings))
{
string result;
while (reader.Read())
{
//Process only the elements
if (reader.NodeType == XmlNodeType.Element)
{
//Reset the variable for a new element
result = "";
for (int count = 1; count <= reader.Depth; count++)
{
result += "===";
}
result += "=> " + reader.Name + "<br/>";
lblResult.Text += result;
}
}
}
}
catch (Exception ex)
{
lblResult.Text = "An Exception occurred: " + ex.Message;
}
}
</script>
总结下来，我们可以使用XmlReader类以非缓存、只读、只向前的方式读取XML文件，这种方法占用内存少，推荐大家使用。
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