LocalDbConnectionFactory.BaseConnectionString Property
The connection string to use for options to the database other than the 'Initial Catalog', 'Data Source', and 'AttachDbFilename'. The 'Initial Catalog' and 'AttachDbFilename' will be prepended to this string based on the database name when CreateConnection is called. The 'Data Source' will be set based on the LocalDbVersion argument. The default is 'Integrated Security=True;'.
Assembly: EntityFramework (in EntityFramework.dll)