[Gtk-sharp-list] Question about TreeNode

[Mike Kestner]

On Fri, 2005-10-21 at 11:49 +0200, Arrigo Razzini wrote:

> <snippet>
> TreeViewColumn column = new TreeViewColumn();
> ...
> column.AddAttribute (cellPixbuf, "pixbuf", 0);
> column.AddAttribute (cellText, "text", 1);

The above says "use model column 0 for the pixbuf attr and model column
1 for the text attr."

> ....
> store.AppendValues (new Gdk.Pixbuf("image.png"), "hello world");
> </snippet>
> 
> .. but now I'm trying to use a NodeView/NodeStore instead of
> TreeView/TreeStore and I don't understand as it is possible to make
> the same without creating another Column in the TreeNode.
> 
> <snippet>
> [TreeNode (ColumnCount=1)]

This is the number of "model" columns.  So make it 2.

> public class GenericNode : TreeNode {
> 
> string name;
> 
> public GenericNode (string name)
> {
>      this.name = name;
> }
> 
> [TreeNodeValue (Column=0)]

Mark the property exposing the pixbuf as Column=0 and change this to
Column=1, since it is the text.

>      public string Name
>      {
>              get { return name; }
>      }
> }

> is it possible to have two or more CellRenderer for the same Column
> using a TreeNode ?

Sure, you are just confusing model columns with view columns.

-- 
Mike Kestner <mkestner at novell.com>