New Post: Autogenerated PropertyGrid : How to change formating of default Editors

Many thanks,

I read about EditorTemplateDefinition but didn't understand it was possible to re-use the DoubleUpDown in the template definnition.
The CultureInfo en-US will parse "." but not "," though (and the opposite for fr-FR) .
I will try something with FormaString.

I am on a good track now thanks to you.