Do not show open button on One2Many without form view
The One2Many
open button create a WinForm
/Window.Form
requesting a form
view from the screen.
If there is no form
view, the dialog is closed directly.
So it will be better to not allow the user to click on the button if the button does not perform any action.
Also one could request the same for the new button but indeed this is not always calling WinForm
for example if the current view is creatable
.
So it is better to let the developer activate or not the button using the create
attribute.