ArrayList _Types; // types of the columns
public XmlDataReader(System.Data.CommandBehavior behavior, XmlConnection conn, XmlCommand cmd)
{
_xconn = conn;
_xcmd = cmd;
_behavior = behavior;
// create an iterator to the selected rows
_xpd = new XPathDocument(_xcmd.Url);
_xpn = _xpd.CreateNavigator();
_xpni = _xpn.Select(_xcmd.RowsXPath); // select the rows
_NameSpaces = new ListDictionary();
_Names = new ArrayList();
_Types = new ArrayList();
// Now determine the actual structure of the row depending on the command
if (_xcmd.ColumnsXPath != null)
{
ColumnsSpecifiedInit(); // xpaths to all columns specified
}
else
{
_xcmd.ColumnsXPath = new ArrayList(); // xpath of all columns will simply be the name
switch (_xcmd.Type)
{
case "both":
ColumnsAttributes();
ColumnsElements();
break;
case "attributes":
ColumnsAttributes();
break;
case "elements":
ColumnsElements();
break;
}
}
_Data = new object[_Names.Count]; // allocate enough room for data
if (_NameSpaces.Count > 0)
{
_nsmgr = new XmlNamespaceManager(new NameTable());
foreach (string nsprefix in _NameSpaces.Keys)
{
_nsmgr.AddNamespace(nsprefix, _NameSpaces[nsprefix] as string); // setup namespaces
}
}
else
{
_nsmgr = null;
}
}
public XmlCommand(XmlConnection conn)
{
_xc = conn;
}