Entity Developer (stand alone) does not write connection string to app.config regardless of model settings.
This is an EFCore model (EFML).
Entity Developer app.config connection string
Re: Entity Developer app.config connection string
Please use the version of Entity Developer integrated into Visual Studio to write a connection string in the app.config file of a current Visual Studio project.
Re: Entity Developer app.config connection string
The integrated version does not write the connection string either. Although it does create the app.config file if it is not already present (from a new project or whatever reason).
See viewtopic.php?f=1&t=34086#p118159
See viewtopic.php?f=1&t=34086#p118159
Re: Entity Developer app.config connection string
We have answered you at viewtopic.php?f=1&t=34086#p118248.