c# - Inserting nodes from DataGridView into a TreeView -

i don't know how manage correctly have ask here. have code:

 (int = 0; < cusids.count; i++)         {              treenode node = new treenode(cusids[i]);             treeview1.nodes.add(node);         } 

cusids list customer ids stored once (distinct - taken datagridview). have datatable called dtfoundids stores every single row datagridview ids appear in list above prresent (in datagridview customer id cann appear multiple times). code above creates nodes tree customer ids. wanted add type numbers each id listed in datagridview. records in datagridview like:

  cusid |typenum   ------------------   111   | 234   111   | 211   122   | 123   122   | 556   122   | 222 

so how can fill type numbers child nodes ids? want have 1 node every id , type numbers childnodes. thank much!

you can use node.imagekey or node.name , pass value on it

treenode node = new treenode(); node.imagekey = convert.tostring(cusids.rows[i]["cusid"]); node.name = convert.tostring(cusids.rows[i]["typenum"]);