Xml转化为DataTable

/// <summary>
/// XML转换为DataTable
/// </summary>
/// <param name="fileName">文件路径</param>
/// <param name="tagName">节点路径</param>
/// <returns>返回DataTable</returns>
public static DataTable XmlToDataTable(string fileName, string tagName)
{
XmlDocument Xmldoc = new XmlDocument();
Xmldoc.Load(fileName);
XmlNodeList xlist = Xmldoc.SelectNodes(tagName);
DataTable dt = new DataTable();
DataRow dr;
for (int i = 0; i < xlist.Count; i++)
{
dr = dt.NewRow();
XmlElement xe = (XmlElement)xlist.Item(i);
for (int j = 0; j < xe.Attributes.Count; j++)
{
if (!dt.Columns.Contains("@" + xe.Attributes[j].Name))
{
dt.Columns.Add("@" + xe.Attributes[j].Name);
}
dr["@" + xe.Attributes[j].Name] = xe.Attributes[j].Value;
}
for (int j = 0; j < xe.ChildNodes.Count; j++)
{
if (!dt.Columns.Contains(xe.ChildNodes.Item(j).Name))
{
dt.Columns.Add(xe.ChildNodes.Item(j).Name);
}
dr[xe.ChildNodes.Item(j).Name] = xe.ChildNodes.Item(j).InnerText;
}
dt.Rows.Add(dr);
}
return dt;
}