I am trying to load the document data along with the node data, but I am not having any luck. I am getting only my document data. This is what I'm doing:

string codeName = "Test1.DocType1.customquery";
GeneralConnection cn = ConnectionHelper.GetConnection();
DataSet ds = cn.ExecuteQuery(codeName, parameters);
if (ds != null && ds.Tables.Count > 0 && ds.Tables[0].Rows.Count > 0)
{
TreeNode node = new TreeNode(ds.Tables[0].Rows[0], codeName, new TreeProvider(CMSContext.CurrentUser));
}
customquery is defined as:
SELECT ##COLUMNS## FROM View_Test1_DocType1_Joined WHERE [UniqueColumn] = @UniqueValue

The TreeNode correctly loads the data of my document type, but it does not load any data from the inherited document data or the node.

How can I get a complete TreeNode?

Thanks in advance