>I have a Project object. On it is a property called QueryItems. QueryItems is a List containing this class:
>
>

>public class csQueryItem
>{
>    public DataSet QueryResults { get; set; }
>    public string QueryString { get; set; }
>    public int Quantity { get; set; }
>    public bool IsProduct { get; set; }
>}
>

>
>The user will enter one or more query words such as:
>
>

>A6825A
>A6913A
>A7025A
>A9879A
>A9881A
>A9918A
>C7497A
>C7508AZ
>

>
>For each item in this list I will run a query that returns a DS with one or more rows. If the DS has more than 1 row, it's a Product, if only one row, the it's not a product. The class above stores the DS, the query string, and the IsProduct bool.
>
>I then need to load a treeview with the results of all queries, starting with products, the parts (non products), sorted by the Query string.
>
>How do I do this?

It's not clear how the TreeView would be constructed. Would I be right in assuming that each 'query word' would appear as a root node and if it was a product then a child node would be created for each row returned from that query?
Also we'd need to know a bit more about the structure of csQueryItem.QueryResults......