SessionLoadWindow.CurrentSessionId C# (CSharp) Method

    public int CurrentSessionId()
    {
        TreeModel model;
        TreeIter iter;

        if (treeview_session_load.Selection.GetSelected (out model, out iter)) {
            string selected = (string)model.GetValue (iter, 0);
            return Convert.ToInt32 (selected.Split (':')[0]);
        }
        return -1;
    }