bang.bram

look at: http://forums.unigui.com/index.php?/topic/3432-unitreeview-node-checkbox-how/&do=findComment&comment=16307 uses ... uniGUIApplication ... procedure TMainForm.UniButton1Click(Sender: TObject); var node: TUniTreeNode; begin //node := UniTreeView1.Items.AddChild(SelectedNode, 'TestNode'); node := UniTreeView1.Items.AddChild(nil, 'TestNode'); node.Selected := True; //set(''checked'', false); OR set(''checked'', true); UniSession.AddJS('if (' + UniTreeView1.JSName + '.getSelectionModel().hasSelection()) {'+UniTreeView1.JSName+'.getSelectionModel().getSelection()[0].set(''checked'', false);};'); end;