private string TraverseTree(IQueryItem item)
{
if (item is IConnectorItem)
{
IConnectorItem conn = item as IConnectorItem;
StringBuilder buffer = new StringBuilder();
string leftRequest = TraverseTree(_queryNodes[conn.LeftChild]);
string rightRequest = TraverseTree(_queryNodes[conn.RightChild]);
buffer.AppendFormat("({0} {1} {2})", leftRequest, conn.FilterType.ToString(), rightRequest);
return(buffer.ToString());
}
else
{
ILeafItem leaf = item as ILeafItem;
return(BuildSearchString(leaf));
}
}
public void GetConnectorItem(out IConnectorItem item)
{
item = new ConnectorItem();
item.NodeId = _itemCounter++;
}
