I am sure you know about the useful controls TJvDirectoryEdit and TJvFilenameEdit from the JVCL. They come in handy whenever you need an edit field that should allow autocomplete for file or directory names. It always irked me that I had to include not only the JVCL but also the JCL in order to just have this autocompletion feature especially since I don’t want the selection buttons that are part of the controls. So, having some time on my hands this weekend I decided to check how it is done and whether it would be possible to get the feature without the JVCL.

I am sure you know about the useful controls TJvDirectoryEdit and TJvFilenameEdit from the JVCL. They come in handy whenever you need an edit field that should allow autocomplete for file or directory names. It always irked me that I had to include not only the JVCL but also the JCL in order to just have this autocompletion feature especially since I don’t want the selection buttons that are part of the controls. So, having some time on my hands this weekend I decided to check how it is done and whether it would be possible to get the feature without the JVCL.

It turned out to be easy. ...
http://blog.dummzeuch.de/2014/06/09/autocomplete-for-tedits/