[Gtk-sharp-list] Howto use Treeview Cell Data Function

Jonathan Pryor jonpryor@vt.edu
Sun, 25 Jan 2004 02:03:15 -0500

You could take a look at Type Reflector (Mono CVS module:
type-reflector) for some TreeCellDataFunc use.

You'll want to see displayers/gtk/GtkTypeDisplayer.cs, in the
OnRenderCellText and OnRenderCellIcon methods.

A sample implementation would be:

	private void MyCellDataFunc_Column1 (
		Gtk.TreeViewColumn tree_column,
		Gtk.CellRenderer cell,
		Gtk.TreeModel tree_model,
		Gtk.TreeIter iter)
		complexObject co = (complexObject) 
			tree_model.GetValue (iter, 0);
		((CellRendererText) cell).Text = co.firstString;

You would need to use a different function for each column you wanted

 - Jon

On Sat, 2004-01-24 at 08:05, John BouAntoun wrote:
> Hey guys,
> I have treeview that has a liststore of complex objects.
> I wanted to map some text cell renderers to different string properties
> of the complex object.
> I figured out that I need a CellDataFunction and have the signature
> correct, but I have no idea what to do inside the CellDataFunction to
> get it to render properly.
> Some help (an example even) would be much appreciation.
> For simplicity's sake lets just say the complex object looked something
> like this
> class complexObject {
>         string firstString {get;};
>         string secondString {get;};
> }
> how would I get those two properties to render in the separate columns
> of a treeview?
> Thanks in advance
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