上次的递归调用进行对XML文件读取限制比较大，这次静态进行读取，思路还是先把XML读取到DataTable中然后进行绑定，代码入下：
private DataTable CreatTable()
{
DataTable dt = new DataTable();
dt.Columns.Add("ID");
dt.Columns.Add("ParentID");
dt.Columns.Add("Name");
XmlDocument xmlDoc=new XmlDocument();
xmlDoc.Load(g_filepath);
XmlNode rootnode = xmlDoc.DocumentElement;
dr = dt.NewRow();
int Id = 1;
dr["ID"] = Id++;
dr["ParentID"] = 0;
dr["Name"] = rootnode.Name.ToString();
dt.Rows.Add(dr);
if (rootnode.HasChildNodes)
{
XmlNodeList xmlnodelist = rootnode.ChildNodes;
foreach (XmlNode xmlnode in xmlnodelist)
{
dr = dt.NewRow();
dr["ID"] = Id++;
dr["ParentID"] = 1;
dr["Name"] = xmlnode.Name.ToString();
dt.Rows.Add(dr);
if (xmlnode.HasChildNodes)
{
int j = 1;
XmlNodeList nodelist = xmlnode.ChildNodes;
foreach (XmlNode node in nodelist)
{
int pId=Id;
dr = dt.NewRow();
dr["ID"] = Id++;
dr["ParentID"] =pId-j ;
dr["Name"] =node.Name.ToString();
dt.Rows.Add(dr);
j++;
if (node.HasChildNodes)
{
int i = 1;
XmlNodeList list = node.ChildNodes;
foreach (XmlNode Node in list)
{
if (Node.NodeType == XmlNodeType.Text)
{
continue;
}
else
{
int ppId = Id;
dr = dt.NewRow();
dr["ID"] = Id++;
dr["ParentID"] = ppId - i;
dr["Name"] = Node.Name.ToString();
dt.Rows.Add(dr);
i++;
j++;
}
}
}
else
{
continue;
}
}
}
else
{
continue;
}
}
}
return dt;
}