Forum

Dear Support,

We have a drop-list with many items, we would like to group them into a tree.

Is there any ready-to-use control in Prof-UIS that does that?

Thanks,

Ron.

You can find a lot of articles on the Internet like these:

http://www.codeguru.com/cpp/controls/combobox/dropdown/article.php/c1791
http://www.codeproject.com/KB/combobox/TreeCombo.aspx

But they typically describe how to create something that looks like a combo box common control but not based on it. So, we spent a couple of hours and coded the following simplest possible combo box control with a popup tree control instead of the list box:

http://www.prof-uis.com/download/forums/tmp/TestTreeComboBoxForRon.zip

This is basic implementation which was written just to prove whether this is possible. It’s probably not a ready-to-use control yet. So, we need to know your wishes and task details. The main feature of our tree combo box is that it’s based on the CExtComboBox and CExtTreeCtrl controls - it’s not derived directly from CWnd. But we need to add a lot of additional features. For example, we need to make it working in several specific modes like display comma separated text of all the checked tree items.