Editors always visible

Hello Valerio,

This feature is not supported out of the box in RadPropertyGrid. In our suite, all editors are created dynamically when needed and this is valid for all other data visualization controls as well. This is done for performance and memory reasons, the editors are heavy and using an editor in every cell significantly impacts the memory and the performance.

Although not recommended, this can be achieved by using custom items, but please note that this approach will require creating a custom item for each data type.  

I hope this helps. Should you have any other questions do not hesitate to ask.

Regards,
Nadya
Progress Telerik