File extension setup on CFileDialog

OK!
now, please, define what "don't work" and describe the steps to reproduce such a "not working" behavior.

Hello VictorN,

This are the steps:

Change the directory in csNewDir in OnTypeChange() into an other existing directory on your system.
compile the project
run the programm
press the 'Add File' button
change the extension in the left bottom combobox for the file you want to find for eg shp or dwg
and then goes wrong. I want that he change the directory in the upper right combobox to the directory that is defined in the OnTypeChange() methode.
With best regards,
Kees