validator doesn't work with wxBitmapComboBox

[blizzymadden]

If you hook up a wxGenericValidator (with a wxString in it) to a wxBitmapComboBox, the string never gets updated when you call TransferDataToWindow() and vice versa. Example:

wxBitmapComboBox* languageCombo = new wxBitmapComboBox(this, wxID_ANY, _T(""), wxDefaultPosition, wxSize(100, -1), choiceStrings, wxCB_DROPDOWN|wxCB_READONLY, wxGenericValidator(&m_langName));

No matter what "m_langName" is, the combobox is empty when it appears, and when you call TransferDataToWindow(), m_langName is emptied. If I swap in a regular wxComboBox into this code it works perfectly.

[p_michalczyk]

Please send some working code, then I will take a closer look at it.

[blizzymadden]

Do you need the code for the entire dialog? Just drop this into any dialog's creation code and note that this combobox is empty when it appears. And when you call TransferDataFromWindow() from the OnOK event then the string variable is blank. Swapping in a regular wxComboBox will say "Danish" when it appears and will set the string variable to whatever was selected when you call TransferDataFromWindow().

wxArrayString choiceStrings;
choiceStrings.Add(_("None"));
choiceStrings.Add(_("Danish"));

wxString m_langName = _("Danish");

wxBitmapComboBox* languageCombo = new wxBitmapComboBox(this, wxID_ANY,
_T(""), wxDefaultPosition, wxSize(100,
-1), choiceStrings,
wxCB_DROPDOWN|wxCB_READONLY,
wxGenericValidator(&m_langName));

//Add languageCombo to a sizer or the dialog

TransferDataToWindow();

[p_michalczyk]

I'm trying to get wxBitmapComboBox to work with validators, but there are some difficulties. This difficulties complicate solution in such a way, that this solution cannot be thought of as simple/clean. And I don't want to post dirty hacks just to make things work for a while. So please be patient. I won't forget about it.

[p_michalczyk]

As a workaround you use BitmapComboBox without CB_READONLY style.