c# - How to populate a treeview from a list of objects -


i'm having problem populating treeview list of objects. i've been looking solutions on google, found topic close problem, none of them solved it.

i have list properties each object : name , group.

i populate treeview below :

+---group 1 |   | |   +--------object.name <--  |   +--------object.name <-- objects object.group = group 1 |   +--------object.name <-- | +---group 2 |   | |   +--------object.name <--  |   +--------object.name <-- objects object.group = group 2 |   +--------object.name <-- |

and on.

thanks.

worked well, thanks. i've added few lines @ beginning , @ end of else below.

private void populatetreeview()     {         listofobjectssorted = listofobjects.orderby(r => r.group).tolist();         var topnode = new treenode("select all");         treeview1.nodes.add(topnode);         string currentgroup = listofobjectssorted.first().group;         var treenodes = new list<treenode>();         var childnodes = new list<treenode>();         foreach (object obj in listofobjectssorted )         {             if (currentgroup == rule.group)                 childnodes.add(new treenode(obj.name));             else             {                 if (childnodes.count > 0)                 {                     treenodes.add(new treenode(currentgroup, childnodes.toarray()));                     childnodes = new list<treenode>();                 }                 childnodes.add(new treenode(obj.name));                 currentgroup = obj.group;             }         }         if (childnodes.count > 0)         {             treenodes.add(new treenode(currentgroup, childnodes.toarray()));         }         treeview1.nodes[0].nodes.addrange(treenodes.toarray());     }

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