https://learn.microsoft.com/en-us/dotnet/api/system.data.entityclient.entityconnectionstringbuilder?view=netframework-4.8.1&redirectedfrom=MSDN
EntityConnectionStringBuilder Class (System.Data.EntityClient) | Microsoft Learn
Provides a simple way to create and manage the contents of connection strings used by the EntityClient.
class systemdatamicrosoftlearn